---
_id: '5684'
author:
- first_name: Fabian
full_name: Lang, Fabian
last_name: Lang
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
- first_name: Andreas
full_name: Fink, Andreas
last_name: Fink
citation:
ama: 'Lang F, Schryen G, Fink A. Automated Negotiations Under Uncertain Preferences.
In: Proceedings of the 2011 International Conference on Information Systems
(ICIS 2011). ; 2011.'
apa: Lang, F., Schryen, G., & Fink, A. (2011). Automated Negotiations Under
Uncertain Preferences. In Proceedings of the 2011 International Conference
on Information Systems (ICIS 2011).
bibtex: '@inproceedings{Lang_Schryen_Fink_2011, title={Automated Negotiations Under
Uncertain Preferences}, booktitle={Proceedings of the 2011 International Conference
on Information Systems (ICIS 2011)}, author={Lang, Fabian and Schryen, Guido and
Fink, Andreas}, year={2011} }'
chicago: Lang, Fabian, Guido Schryen, and Andreas Fink. “Automated Negotiations
Under Uncertain Preferences.” In Proceedings of the 2011 International Conference
on Information Systems (ICIS 2011), 2011.
ieee: F. Lang, G. Schryen, and A. Fink, “Automated Negotiations Under Uncertain
Preferences,” in Proceedings of the 2011 International Conference on Information
Systems (ICIS 2011), 2011.
mla: Lang, Fabian, et al. “Automated Negotiations Under Uncertain Preferences.”
Proceedings of the 2011 International Conference on Information Systems (ICIS
2011), 2011.
short: 'F. Lang, G. Schryen, A. Fink, in: Proceedings of the 2011 International
Conference on Information Systems (ICIS 2011), 2011.'
date_created: 2018-11-14T15:44:41Z
date_updated: 2022-01-06T07:02:32Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-11T14:57:26Z
date_updated: 2018-12-13T15:13:46Z
file_id: '6173'
file_name: ICIS PROCEEDINGS VERSION.pdf
file_size: 606840
relation: main_file
file_date_updated: 2018-12-13T15:13:46Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: Proceedings of the 2011 International Conference on Information Systems
(ICIS 2011)
status: public
title: Automated Negotiations Under Uncertain Preferences
type: conference
user_id: '61579'
year: '2011'
...
---
_id: '5689'
author:
- first_name: Christian
full_name: Bodenstein, Christian
last_name: Bodenstein
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
- first_name: Dirk
full_name: Neumann, Dirk
last_name: Neumann
citation:
ama: 'Bodenstein C, Schryen G, Neumann D. Reducing Datacenter Energy Usage through
Efficient Job Allocation. In: Proceedings of the 19th European Conference on
Information Systems (ECIS 2011). ; 2011.'
apa: Bodenstein, C., Schryen, G., & Neumann, D. (2011). Reducing Datacenter
Energy Usage through Efficient Job Allocation. In Proceedings of the 19th European
Conference on Information Systems (ECIS 2011).
bibtex: '@inproceedings{Bodenstein_Schryen_Neumann_2011, title={Reducing Datacenter
Energy Usage through Efficient Job Allocation}, booktitle={Proceedings of the
19th European Conference on Information Systems (ECIS 2011)}, author={Bodenstein,
Christian and Schryen, Guido and Neumann, Dirk}, year={2011} }'
chicago: Bodenstein, Christian, Guido Schryen, and Dirk Neumann. “Reducing Datacenter
Energy Usage through Efficient Job Allocation.” In Proceedings of the 19th
European Conference on Information Systems (ECIS 2011), 2011.
ieee: C. Bodenstein, G. Schryen, and D. Neumann, “Reducing Datacenter Energy Usage
through Efficient Job Allocation,” in Proceedings of the 19th European Conference
on Information Systems (ECIS 2011), 2011.
mla: Bodenstein, Christian, et al. “Reducing Datacenter Energy Usage through Efficient
Job Allocation.” Proceedings of the 19th European Conference on Information
Systems (ECIS 2011), 2011.
short: 'C. Bodenstein, G. Schryen, D. Neumann, in: Proceedings of the 19th European
Conference on Information Systems (ECIS 2011), 2011.'
date_created: 2018-11-14T15:48:00Z
date_updated: 2022-01-06T07:02:34Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-11T15:04:23Z
date_updated: 2018-12-13T15:15:52Z
file_id: '6182'
file_name: ECIS_2011_-_REDUCING_DATACENTER_ENERGY_USAGE_THROUGH_EFFICIENT_JOB_ALLOCATION.pdf
file_size: 210256
relation: main_file
file_date_updated: 2018-12-13T15:15:52Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: Proceedings of the 19th European Conference on Information Systems (ECIS
2011)
status: public
title: Reducing Datacenter Energy Usage through Efficient Job Allocation
type: conference
user_id: '61579'
year: '2011'
...
---
_id: '5581'
author:
- first_name: Felix
full_name: Wex, Felix
last_name: Wex
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
- first_name: Dirk
full_name: Neumann, Dirk
last_name: Neumann
citation:
ama: 'Wex F, Schryen G, Neumann D. Intelligent Decision Support for Centralized
Coordination during Emergency Response. In: Proceedings of the 8th International
Conference on Information Systems for Crisis Response and Management (ISCRAM 2011).
; 2011.'
apa: Wex, F., Schryen, G., & Neumann, D. (2011). Intelligent Decision Support
for Centralized Coordination during Emergency Response. In Proceedings of the
8th International Conference on Information Systems for Crisis Response and Management
(ISCRAM 2011).
bibtex: '@inproceedings{Wex_Schryen_Neumann_2011, title={Intelligent Decision Support
for Centralized Coordination during Emergency Response}, booktitle={Proceedings
of the 8th International Conference on Information Systems for Crisis Response
and Management (ISCRAM 2011)}, author={Wex, Felix and Schryen, Guido and Neumann,
Dirk}, year={2011} }'
chicago: Wex, Felix, Guido Schryen, and Dirk Neumann. “Intelligent Decision Support
for Centralized Coordination during Emergency Response.” In Proceedings of
the 8th International Conference on Information Systems for Crisis Response and
Management (ISCRAM 2011), 2011.
ieee: F. Wex, G. Schryen, and D. Neumann, “Intelligent Decision Support for Centralized
Coordination during Emergency Response,” in Proceedings of the 8th International
Conference on Information Systems for Crisis Response and Management (ISCRAM 2011),
2011.
mla: Wex, Felix, et al. “Intelligent Decision Support for Centralized Coordination
during Emergency Response.” Proceedings of the 8th International Conference
on Information Systems for Crisis Response and Management (ISCRAM 2011), 2011.
short: 'F. Wex, G. Schryen, D. Neumann, in: Proceedings of the 8th International
Conference on Information Systems for Crisis Response and Management (ISCRAM 2011),
2011.'
date_created: 2018-11-14T11:17:44Z
date_updated: 2022-01-06T07:02:02Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-11T15:03:15Z
date_updated: 2018-12-13T15:15:31Z
file_id: '6180'
file_name: 131.pdf
file_size: 286447
relation: main_file
file_date_updated: 2018-12-13T15:15:31Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: Proceedings of the 8th International Conference on Information Systems
for Crisis Response and Management (ISCRAM 2011)
status: public
title: Intelligent Decision Support for Centralized Coordination during Emergency
Response
type: conference
user_id: '61579'
year: '2011'
...
---
_id: '5619'
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
- first_name: Melanie
full_name: Volkamer, Melanie
last_name: Volkamer
- first_name: Sebastian
full_name: Ries, Sebastian
last_name: Ries
citation:
ama: 'Schryen G, Volkamer M, Ries S. A formal approach towards measuring trust in
distributed systems. In: Proceedings of the 26th Annual ACM Symposium on Applied
Computing. ; 2011.'
apa: Schryen, G., Volkamer, M., & Ries, S. (2011). A formal approach towards
measuring trust in distributed systems. In Proceedings of the 26th Annual ACM
Symposium on Applied Computing.
bibtex: '@inproceedings{Schryen_Volkamer_Ries_2011, title={A formal approach towards
measuring trust in distributed systems}, booktitle={Proceedings of the 26th Annual
ACM Symposium on Applied Computing}, author={Schryen, Guido and Volkamer, Melanie
and Ries, Sebastian}, year={2011} }'
chicago: Schryen, Guido, Melanie Volkamer, and Sebastian Ries. “A Formal Approach
towards Measuring Trust in Distributed Systems.” In Proceedings of the 26th
Annual ACM Symposium on Applied Computing, 2011.
ieee: G. Schryen, M. Volkamer, and S. Ries, “A formal approach towards measuring
trust in distributed systems,” in Proceedings of the 26th Annual ACM Symposium
on Applied Computing, 2011.
mla: Schryen, Guido, et al. “A Formal Approach towards Measuring Trust in Distributed
Systems.” Proceedings of the 26th Annual ACM Symposium on Applied Computing,
2011.
short: 'G. Schryen, M. Volkamer, S. Ries, in: Proceedings of the 26th Annual ACM
Symposium on Applied Computing, 2011.'
date_created: 2018-11-14T14:01:37Z
date_updated: 2022-01-06T07:02:10Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-11T15:06:53Z
date_updated: 2018-12-13T15:16:04Z
file_id: '6183'
file_name: p1739-schryen.pdf
file_size: 453557
relation: main_file
file_date_updated: 2018-12-13T15:16:04Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: Proceedings of the 26th Annual ACM Symposium on Applied Computing
status: public
title: A formal approach towards measuring trust in distributed systems
type: conference
user_id: '61579'
year: '2011'
...
---
_id: '5640'
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
citation:
ama: Schryen G. Is open source security a myth? What do vulnerability and patch
data say? Communications of the ACM (CACM). 2011;Vol. 54(No. 5):130-139.
apa: Schryen, G. (2011). Is open source security a myth? What do vulnerability and
patch data say? Communications of the ACM (CACM), Vol. 54(No. 5),
130–139.
bibtex: '@article{Schryen_2011, title={Is open source security a myth? What do vulnerability
and patch data say?}, volume={Vol. 54}, number={No. 5}, journal={Communications
of the ACM (CACM)}, publisher={Association for Computing Machinery}, author={Schryen,
Guido}, year={2011}, pages={130–139} }'
chicago: 'Schryen, Guido. “Is Open Source Security a Myth? What Do Vulnerability
and Patch Data Say?” Communications of the ACM (CACM) Vol. 54, no. No.
5 (2011): 130–39.'
ieee: G. Schryen, “Is open source security a myth? What do vulnerability and patch
data say?,” Communications of the ACM (CACM), vol. Vol. 54, no. No. 5,
pp. 130–139, 2011.
mla: Schryen, Guido. “Is Open Source Security a Myth? What Do Vulnerability and
Patch Data Say?” Communications of the ACM (CACM), vol. Vol. 54, no. No.
5, Association for Computing Machinery, 2011, pp. 130–39.
short: G. Schryen, Communications of the ACM (CACM) Vol. 54 (2011) 130–139.
date_created: 2018-11-14T14:34:54Z
date_updated: 2022-01-06T07:02:17Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-11T15:03:56Z
date_updated: 2018-12-13T15:15:42Z
file_id: '6181'
file_name: CACM article.pdf
file_size: 1020040
relation: main_file
file_date_updated: 2018-12-13T15:15:42Z
has_accepted_license: '1'
issue: No. 5
language:
- iso: eng
oa: '1'
page: 130-139
publication: Communications of the ACM (CACM)
publisher: Association for Computing Machinery
status: public
title: Is open source security a myth? What do vulnerability and patch data say?
type: journal_article
user_id: '61579'
volume: Vol. 54
year: '2011'
...
---
_id: '5641'
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
citation:
ama: 'Schryen G. Seeking the VALUE in IS Business Value Research - An Agenda for
investigating Synergies Between Socio-organizational Change, IS Capabilities Change,
and IS Innovation. In: IS Capabilities Change, and IS Innovation, Proceedings
of the 19th European Conference on Information Systems (ECIS 2011), Helsinki.
; 2011.'
apa: Schryen, G. (2011). Seeking the VALUE in IS Business Value Research - An Agenda
for investigating Synergies Between Socio-organizational Change, IS Capabilities
Change, and IS Innovation. In IS Capabilities Change, and IS Innovation, Proceedings
of the 19th European Conference on Information Systems (ECIS 2011), Helsinki.
bibtex: '@inproceedings{Schryen_2011, title={Seeking the VALUE in IS Business Value
Research - An Agenda for investigating Synergies Between Socio-organizational
Change, IS Capabilities Change, and IS Innovation}, booktitle={IS Capabilities
Change, and IS Innovation, Proceedings of the 19th European Conference on Information
Systems (ECIS 2011), Helsinki}, author={Schryen, Guido}, year={2011} }'
chicago: Schryen, Guido. “Seeking the VALUE in IS Business Value Research - An Agenda
for Investigating Synergies Between Socio-Organizational Change, IS Capabilities
Change, and IS Innovation.” In IS Capabilities Change, and IS Innovation, Proceedings
of the 19th European Conference on Information Systems (ECIS 2011), Helsinki,
2011.
ieee: G. Schryen, “Seeking the VALUE in IS Business Value Research - An Agenda for
investigating Synergies Between Socio-organizational Change, IS Capabilities Change,
and IS Innovation,” in IS Capabilities Change, and IS Innovation, Proceedings
of the 19th European Conference on Information Systems (ECIS 2011), Helsinki,
2011.
mla: Schryen, Guido. “Seeking the VALUE in IS Business Value Research - An Agenda
for Investigating Synergies Between Socio-Organizational Change, IS Capabilities
Change, and IS Innovation.” IS Capabilities Change, and IS Innovation, Proceedings
of the 19th European Conference on Information Systems (ECIS 2011), Helsinki,
2011.
short: 'G. Schryen, in: IS Capabilities Change, and IS Innovation, Proceedings of
the 19th European Conference on Information Systems (ECIS 2011), Helsinki, 2011.'
date_created: 2018-11-14T14:35:30Z
date_updated: 2022-01-06T07:02:18Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-11T15:07:46Z
date_updated: 2018-12-13T15:16:26Z
file_id: '6184'
file_name: REVISION - Seeking the value in IS value research.pdf
file_size: 291468
relation: main_file
file_date_updated: 2018-12-13T15:16:26Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: IS Capabilities Change, and IS Innovation, Proceedings of the 19th European
Conference on Information Systems (ECIS 2011), Helsinki
status: public
title: Seeking the VALUE in IS Business Value Research - An Agenda for investigating
Synergies Between Socio-organizational Change, IS Capabilities Change, and IS Innovation
type: conference
user_id: '61579'
year: '2011'
...
---
_id: '5685'
abstract:
- lang: eng
text: In double-sided markets for computing resources an optimal allocation schedule
among job offers and requests subject to relevant capacity constraints can be
determined. With increasing storage demands and emerging storage services the
question how to schedule storage jobs becomes more and more interesting. Since
such scheduling problems are often in the class NP-complete an exact computation
is not feasible in practice. On the other hand an approximation to the optimal
solution can easily be found by means of using heuristics. The problem with this
attempt is that the suggested solution may not be exactly optimal and is thus
less satisfying. Considering the two above mentioned solution approaches one can
clearly find a trade-off between the optimality of the solution and the efficiency
to get to a solution at all. This work proposes to apply and combine heuristics
in optimization to gain from both of their benefits while reducing the problematic
aspects. Following this method it is assumed to get closer to the optimal solution
in a shorter time compared to a full optimization.
author:
- first_name: Josef
full_name: Finkbeiner, Josef
last_name: Finkbeiner
- first_name: Christian
full_name: Bodenstein, Christian
last_name: Bodenstein
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
- first_name: Dirk
full_name: Neumann, Dirk
last_name: Neumann
citation:
ama: 'Finkbeiner J, Bodenstein C, Schryen G, Neumann D. Applying heuristic methods
for job scheduling in storage markets. In: 18th European Conference on Information
Systems (ECIS 2010). ; 2010.'
apa: Finkbeiner, J., Bodenstein, C., Schryen, G., & Neumann, D. (2010). Applying
heuristic methods for job scheduling in storage markets. In 18th European Conference
on Information Systems (ECIS 2010).
bibtex: '@inproceedings{Finkbeiner_Bodenstein_Schryen_Neumann_2010, title={Applying
heuristic methods for job scheduling in storage markets}, booktitle={18th European
Conference on Information Systems (ECIS 2010)}, author={Finkbeiner, Josef and
Bodenstein, Christian and Schryen, Guido and Neumann, Dirk}, year={2010} }'
chicago: Finkbeiner, Josef, Christian Bodenstein, Guido Schryen, and Dirk Neumann.
“Applying Heuristic Methods for Job Scheduling in Storage Markets.” In 18th
European Conference on Information Systems (ECIS 2010), 2010.
ieee: J. Finkbeiner, C. Bodenstein, G. Schryen, and D. Neumann, “Applying heuristic
methods for job scheduling in storage markets,” in 18th European Conference
on Information Systems (ECIS 2010), 2010.
mla: Finkbeiner, Josef, et al. “Applying Heuristic Methods for Job Scheduling in
Storage Markets.” 18th European Conference on Information Systems (ECIS 2010),
2010.
short: 'J. Finkbeiner, C. Bodenstein, G. Schryen, D. Neumann, in: 18th European
Conference on Information Systems (ECIS 2010), 2010.'
date_created: 2018-11-14T15:45:11Z
date_updated: 2022-01-06T07:02:32Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-11T15:21:06Z
date_updated: 2018-12-13T15:19:40Z
file_id: '6188'
file_name: s1-ln7055316-1881058806-1939656818Hwf-1884822883IdV-5442784107055316PDF_HI0001.pdf
file_size: 171336
relation: main_file
file_date_updated: 2018-12-13T15:19:40Z
has_accepted_license: '1'
keyword:
- Decision Support System
- Algorithms
- Optimization
- Market Engineering
language:
- iso: eng
oa: '1'
publication: 18th European Conference on Information Systems (ECIS 2010)
status: public
title: Applying heuristic methods for job scheduling in storage markets
type: conference
user_id: '61579'
year: '2010'
...
---
_id: '5690'
abstract:
- lang: eng
text: In a world, where more and more businesses seem to trade in an online market,
the supply of online services to supply the ever-growing demand could quickly
reach its capacity limits. Online service providers may find themselves maxed
out at peak operation levels during high-traffic timeslots but too little demand
during low-traffic timeslots, although the latter is becoming less frequent. At
this point not only deciding which user is allocated what level of service becomes
essential, but also the magnitude of the service provided, can be controlled by
pricing. Pricing is an important factor when efficient and acceptable allocation
of resources between individuals must be reached. Without prices, transferring
or sharing goods would be impossible. In sharing information, pricing a product
however is not as simple as relatively pricing an apple or a pear. Often the costs,
and hence the prices are simply unknown. Backed by this scenario, the online services
market could be combined with the market design mechanism of diamonds. For this
we propose an ultimatum pricing strategy which effectively allows for valuations
to be accounted for, but no longer a necessity when pricing in grid, cloud or
other online computing environments.
author:
- first_name: Christian
full_name: Bodenstein, Christian
last_name: Bodenstein
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
- first_name: Dirk
full_name: Neumann, Dirk
last_name: Neumann
citation:
ama: 'Bodenstein C, Schryen G, Neumann D. From “Take-it-or-leave-it” offers to “Take-it-or-be-left-out”
Ultimatum - A trade mechanism for Online Services. In: 18th European Conference
on Information Systems (ECIS 2010). ; 2010.'
apa: Bodenstein, C., Schryen, G., & Neumann, D. (2010). From “Take-it-or-leave-it”
offers to “Take-it-or-be-left-out” Ultimatum - A trade mechanism for Online Services.
In 18th European Conference on Information Systems (ECIS 2010).
bibtex: '@inproceedings{Bodenstein_Schryen_Neumann_2010, title={From “Take-it-or-leave-it”
offers to “Take-it-or-be-left-out” Ultimatum - A trade mechanism for Online Services},
booktitle={18th European Conference on Information Systems (ECIS 2010)}, author={Bodenstein,
Christian and Schryen, Guido and Neumann, Dirk}, year={2010} }'
chicago: Bodenstein, Christian, Guido Schryen, and Dirk Neumann. “From ‘Take-It-or-Leave-It’
Offers to ‘Take-It-or-Be-Left-out’ Ultimatum - A Trade Mechanism for Online Services.”
In 18th European Conference on Information Systems (ECIS 2010), 2010.
ieee: C. Bodenstein, G. Schryen, and D. Neumann, “From ‘Take-it-or-leave-it’ offers
to ‘Take-it-or-be-left-out’ Ultimatum - A trade mechanism for Online Services,”
in 18th European Conference on Information Systems (ECIS 2010), 2010.
mla: Bodenstein, Christian, et al. “From ‘Take-It-or-Leave-It’ Offers to ‘Take-It-or-Be-Left-out’
Ultimatum - A Trade Mechanism for Online Services.” 18th European Conference
on Information Systems (ECIS 2010), 2010.
short: 'C. Bodenstein, G. Schryen, D. Neumann, in: 18th European Conference on Information
Systems (ECIS 2010), 2010.'
date_created: 2018-11-14T15:48:39Z
date_updated: 2022-01-06T07:02:34Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-11T15:22:41Z
date_updated: 2018-12-13T15:20:13Z
file_id: '6191'
file_name: Take it or leave it - ECIS - Proof.pdf
file_size: 247621
relation: main_file
file_date_updated: 2018-12-13T15:20:13Z
has_accepted_license: '1'
keyword:
- Posted Price
- Ultimatum Game
- Energy Efficiency
- Mechanism Design
language:
- iso: eng
oa: '1'
publication: 18th European Conference on Information Systems (ECIS 2010)
status: public
title: From "Take-it-or-leave-it" offers to "Take-it-or-be-left-out" Ultimatum - A
trade mechanism for Online Services
type: conference
user_id: '61579'
year: '2010'
...
---
_id: '5598'
abstract:
- lang: eng
text: Emerging digital environments and infrastructures, such as distributed services
and computing services, have generated new options of communication, information
sharing, and resource utilization in past years. Different distributed trust concepts
are applied to increase trust in such systems. However, these concepts yield to
rather complex architectures which make it difficult to determine which component
or system needs to be trusted. This paper presents a novel trust measurement method
for distributed systems which enables the t identification of weak points in the
overall system architecture. The measurement method includes the specification
of a formal trust language and its representation by means of propositional logic
formulas. The applicability of the proposed concepts is demonstrated by conducting
a case study on the Internet voting system that was used in the 2007 parliamentary
elections in Estonia.
author:
- first_name: Melanie
full_name: Volkamer, Melanie
last_name: Volkamer
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
citation:
ama: 'Volkamer M, Schryen G. Measuring eTrust in distributed systems - General Concept
and Application to Internet Voting. In: Proceedings of the 23rd Bled EConference.
; 2010.'
apa: Volkamer, M., & Schryen, G. (2010). Measuring eTrust in distributed systems
- General Concept and Application to Internet Voting. In Proceedings of the
23rd Bled eConference.
bibtex: '@inproceedings{Volkamer_Schryen_2010, title={Measuring eTrust in distributed
systems - General Concept and Application to Internet Voting}, booktitle={Proceedings
of the 23rd Bled eConference}, author={Volkamer, Melanie and Schryen, Guido},
year={2010} }'
chicago: Volkamer, Melanie, and Guido Schryen. “Measuring ETrust in Distributed
Systems - General Concept and Application to Internet Voting.” In Proceedings
of the 23rd Bled EConference, 2010.
ieee: M. Volkamer and G. Schryen, “Measuring eTrust in distributed systems - General
Concept and Application to Internet Voting,” in Proceedings of the 23rd Bled
eConference, 2010.
mla: Volkamer, Melanie, and Guido Schryen. “Measuring ETrust in Distributed Systems
- General Concept and Application to Internet Voting.” Proceedings of the 23rd
Bled EConference, 2010.
short: 'M. Volkamer, G. Schryen, in: Proceedings of the 23rd Bled EConference, 2010.'
date_created: 2018-11-14T11:49:50Z
date_updated: 2022-01-06T07:02:06Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-11T15:14:05Z
date_updated: 2018-12-13T15:16:50Z
file_id: '6185'
file_name: 06_Schryen.pdf
file_size: 243413
relation: main_file
file_date_updated: 2018-12-13T15:16:50Z
has_accepted_license: '1'
keyword:
- distributed trust concepts
- measuring etrust
- Internet voting
language:
- iso: eng
oa: '1'
publication: Proceedings of the 23rd Bled eConference
status: public
title: Measuring eTrust in distributed systems - General Concept and Application to
Internet Voting
type: conference
user_id: '61579'
year: '2010'
...
---
_id: '5631'
abstract:
- lang: eng
text: While many theoretical arguments against or in favor of open source and closed
source software development have been presented, the empirical basis for the assessment
of arguments and the development of models is still weak. Addressing this research
gap, this paper presents the first comprehensive empirical investigation of published
vulnerabilities and patches of 17 widely deployed open source and closed source
software packages, including operating systems, database systems, web browsers,
email clients, and office systems. The empirical analysis uses comprehensive vulnerability
data contained in the NIST National Vulnerability Database and a newly compiled
data set of vulnerability patches. The results suggest that it is not the particular
software development style that determines the severity of vulnerabilities and
vendors? patching behavior, but rather the specific application type and the policy
of the particular development community, respectively.
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
- first_name: Rich
full_name: Eliot, Rich
last_name: Eliot
citation:
ama: 'Schryen G, Eliot R. Increasing software security through open source or closed
source development? Empirics suggest that we have asked the wrong question. In:
43rd Annual Hawaii International Conference on System Sciences. ; 2010.'
apa: Schryen, G., & Eliot, R. (2010). Increasing software security through open
source or closed source development? Empirics suggest that we have asked the wrong
question. In 43rd Annual Hawaii International Conference on System Sciences.
bibtex: '@inproceedings{Schryen_Eliot_2010, title={Increasing software security
through open source or closed source development? Empirics suggest that we have
asked the wrong question}, booktitle={43rd Annual Hawaii International Conference
on System Sciences}, author={Schryen, Guido and Eliot, Rich}, year={2010} }'
chicago: Schryen, Guido, and Rich Eliot. “Increasing Software Security through Open
Source or Closed Source Development? Empirics Suggest That We Have Asked the Wrong
Question.” In 43rd Annual Hawaii International Conference on System Sciences,
2010.
ieee: G. Schryen and R. Eliot, “Increasing software security through open source
or closed source development? Empirics suggest that we have asked the wrong question,”
in 43rd Annual Hawaii International Conference on System Sciences, 2010.
mla: Schryen, Guido, and Rich Eliot. “Increasing Software Security through Open
Source or Closed Source Development? Empirics Suggest That We Have Asked the Wrong
Question.” 43rd Annual Hawaii International Conference on System Sciences,
2010.
short: 'G. Schryen, R. Eliot, in: 43rd Annual Hawaii International Conference on
System Sciences, 2010.'
date_created: 2018-11-14T14:23:45Z
date_updated: 2022-01-06T07:02:14Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-11T15:23:33Z
date_updated: 2018-12-13T15:20:23Z
file_id: '6192'
file_name: vendors behavior - UPDATED IEEE version.pdf
file_size: 299380
relation: main_file
file_date_updated: 2018-12-13T15:20:23Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: 43rd Annual Hawaii International Conference on System Sciences
status: public
title: Increasing software security through open source or closed source development?
Empirics suggest that we have asked the wrong question
type: conference
user_id: '61579'
year: '2010'
...
---
_id: '5632'
abstract:
- lang: eng
text: 'Enduring doubts about the value of IS investments reveal that IS researchers
have not fully managed to identify and to explain the economic benefits of IS.
Three research tasks are essential requisites on the path towards addressing this
criticism: the synthesis of knowledge, the identification of lack of knowledge,
and the proposition of paths for closing knowledge gaps. This paper considers
each of these tasks by a) synthesizing key research findings based on a comprehensive
literature review, b) identifying and unfolding key limitations of current research,
and c) applying a decision-theoretic perspective, which opens new horizons to
IS business value research and shows paths for overcoming the limitations. The
adoption of this perspective results in a decision-theoretic foundation of IS
business value research and includes the proposition of a consistent terminology
and a research model that frames further research.'
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
- first_name: Christian
full_name: Bodenstein, Christian
last_name: Bodenstein
citation:
ama: 'Schryen G, Bodenstein C. A decision-theoretic foundation of IS business value
research. In: Proceedings of the 18th European Conference on Information Systems
(ECIS 2010). ; 2010.'
apa: Schryen, G., & Bodenstein, C. (2010). A decision-theoretic foundation of
IS business value research. In Proceedings of the 18th European Conference
on Information Systems (ECIS 2010).
bibtex: '@inproceedings{Schryen_Bodenstein_2010, title={A decision-theoretic foundation
of IS business value research}, booktitle={Proceedings of the 18th European Conference
on Information Systems (ECIS 2010)}, author={Schryen, Guido and Bodenstein, Christian},
year={2010} }'
chicago: Schryen, Guido, and Christian Bodenstein. “A Decision-Theoretic Foundation
of IS Business Value Research.” In Proceedings of the 18th European Conference
on Information Systems (ECIS 2010), 2010.
ieee: G. Schryen and C. Bodenstein, “A decision-theoretic foundation of IS business
value research,” in Proceedings of the 18th European Conference on Information
Systems (ECIS 2010), 2010.
mla: Schryen, Guido, and Christian Bodenstein. “A Decision-Theoretic Foundation
of IS Business Value Research.” Proceedings of the 18th European Conference
on Information Systems (ECIS 2010), 2010.
short: 'G. Schryen, C. Bodenstein, in: Proceedings of the 18th European Conference
on Information Systems (ECIS 2010), 2010.'
date_created: 2018-11-14T14:24:25Z
date_updated: 2022-01-06T07:02:14Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-11T15:24:22Z
date_updated: 2018-12-13T15:20:37Z
file_id: '6193'
file_name: IS business value - ECIS - Final Version.pdf
file_size: 174368
relation: main_file
file_date_updated: 2018-12-13T15:20:37Z
has_accepted_license: '1'
keyword:
- Decision theory
- IT value
- IS assessment
- IS evaluation
language:
- iso: eng
oa: '1'
publication: Proceedings of the 18th European Conference on Information Systems (ECIS
2010)
status: public
title: A decision-theoretic foundation of IS business value research
type: conference
user_id: '61579'
year: '2010'
...
---
_id: '5642'
abstract:
- lang: eng
text: This paper presents a fuzzy set based decision support model for taking uncertainty
into account when making security investment decisions for distributed systems.
The proposed model is complementary to robabilistic approaches and useful in situations
where probabilistic information is either unavailable or not appropriate to reliably
predict future conditions. We ?rst present the speci?cation of a formal security
language that allows to specify under which conditions a distributed system is
protected against security violations. We show that each term of the security
language can be transformed into an equivalent propositional logic term. Then
we use propositional logic terms to de?ne a fuzzy set based decision model. This
optimization model incorporates uncertainty with regard to the impact of investments
on the achieved security levels of components of the distributed system. The model
also accounts for budget and security constraints, in order to be applicable in
practice.
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
citation:
ama: 'Schryen G. A Fuzzy Model for IT Security Investments. In: C. Freiling F, ed.
Sicherheit 2010 : Sicherheit, Schutz Und Zuverl{\"a}ssigkeit ; Konferenzband
Der 5. Jahrestagung Des Fachbereichs Sicherheit Der Gesellschaft F{\"u}r Informatik
e.V. (GI), 5. - 7. Oktober 2010 in Berlin. Vol 170. GI-Edition: lecture notes
in informatics. Proceedings. Bonn: Gesellschaft für Informatik; 2010:289-304.'
apa: 'Schryen, G. (2010). A Fuzzy Model for IT Security Investments. In F. C. Freiling
(Ed.), Sicherheit 2010 : Sicherheit, Schutz und Zuverl{\"a}ssigkeit ; Konferenzband
der 5. Jahrestagung des Fachbereichs Sicherheit der Gesellschaft f{\"u}r Informatik
e.V. (GI), 5. - 7. Oktober 2010 in Berlin (Vol. 170, pp. 289–304). Bonn: Gesellschaft
für Informatik.'
bibtex: '@inproceedings{Schryen_2010, place={Bonn}, series={GI-Edition: lecture
notes in informatics. Proceedings}, title={A Fuzzy Model for IT Security Investments},
volume={170}, booktitle={Sicherheit 2010 : Sicherheit, Schutz und Zuverl{\"a}ssigkeit ;
Konferenzband der 5. Jahrestagung des Fachbereichs Sicherheit der Gesellschaft
f{\"u}r Informatik e.V. (GI), 5. - 7. Oktober 2010 in Berlin}, publisher={Gesellschaft
für Informatik}, author={Schryen, Guido}, editor={C. Freiling, FelixEditor}, year={2010},
pages={289–304}, collection={GI-Edition: lecture notes in informatics. Proceedings}
}'
chicago: 'Schryen, Guido. “A Fuzzy Model for IT Security Investments.” In Sicherheit
2010 : Sicherheit, Schutz Und Zuverl{\"a}ssigkeit ; Konferenzband Der 5. Jahrestagung
Des Fachbereichs Sicherheit Der Gesellschaft F{\"u}r Informatik e.V. (GI), 5.
- 7. Oktober 2010 in Berlin, edited by Felix C. Freiling, 170:289–304. GI-Edition:
Lecture Notes in Informatics. Proceedings. Bonn: Gesellschaft für Informatik,
2010.'
ieee: 'G. Schryen, “A Fuzzy Model for IT Security Investments,” in Sicherheit
2010 : Sicherheit, Schutz und Zuverl{\"a}ssigkeit ; Konferenzband der 5. Jahrestagung
des Fachbereichs Sicherheit der Gesellschaft f{\"u}r Informatik e.V. (GI), 5.
- 7. Oktober 2010 in Berlin, 2010, vol. 170, pp. 289–304.'
mla: 'Schryen, Guido. “A Fuzzy Model for IT Security Investments.” Sicherheit
2010 : Sicherheit, Schutz Und Zuverl{\"a}ssigkeit ; Konferenzband Der 5. Jahrestagung
Des Fachbereichs Sicherheit Der Gesellschaft F{\"u}r Informatik e.V. (GI), 5.
- 7. Oktober 2010 in Berlin, edited by Felix C. Freiling, vol. 170, Gesellschaft
für Informatik, 2010, pp. 289–304.'
short: 'G. Schryen, in: F. C. Freiling (Ed.), Sicherheit 2010 : Sicherheit, Schutz
Und Zuverl{\"a}ssigkeit ; Konferenzband Der 5. Jahrestagung Des Fachbereichs Sicherheit
Der Gesellschaft F{\"u}r Informatik e.V. (GI), 5. - 7. Oktober 2010 in Berlin,
Gesellschaft für Informatik, Bonn, 2010, pp. 289–304.'
date_created: 2018-11-14T14:35:59Z
date_updated: 2022-01-06T07:02:18Z
ddc:
- '000'
department:
- _id: '277'
editor:
- first_name: Felix
full_name: C. Freiling, Felix
last_name: C. Freiling
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-11T15:22:12Z
date_updated: 2018-12-13T15:20:03Z
file_id: '6190'
file_name: security_fuzzy_LNI Version.pdf
file_size: 372660
relation: main_file
file_date_updated: 2018-12-13T15:20:03Z
has_accepted_license: '1'
intvolume: ' 170'
language:
- iso: eng
oa: '1'
page: 289-304
place: Bonn
publication: 'Sicherheit 2010 : Sicherheit, Schutz und Zuverl{\"a}ssigkeit ; Konferenzband
der 5. Jahrestagung des Fachbereichs Sicherheit der Gesellschaft f{\"u}r Informatik
e.V. (GI), 5. - 7. Oktober 2010 in Berlin'
publisher: Gesellschaft für Informatik
series_title: 'GI-Edition: lecture notes in informatics. Proceedings'
status: public
title: A Fuzzy Model for IT Security Investments
type: conference
user_id: '61579'
volume: 170
year: '2010'
...
---
_id: '5643'
abstract:
- lang: eng
text: Enduring doubts about the value of IS investments reveal that IS researchers
have not fully managed to identify and to explain the economic benefits of IS.
This paper assumes that literature reviews, which represent a powerful instrument
for the identification and synthesis of knowledge, have not tapped their full
potential to address this issue due to deficiencies in methodology. The analysis
of 18 literature reviews published in pertinent academic outlets during the past
20 years shows such deficiencies. Two of the most critical weaknesses identified
are (1) the lack of theory use in most reviews and (2) a weak linkage of reviews,
resulting in little progress in theory and framework development. The systematic
identification of these weaknesses and the extraction of promising methodological
examples from past literature are the main contributions of this work, which supports
the composition of more effective literature reviews in future research.
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
citation:
ama: 'Schryen G. An Analysis of Literature Reviews on IS Business Value: How Deficiencies
in Methodology and Theory Use Resulted in Limited Effectiveness. In: Proceedings
of the First Scandinavian Conference on Information Systems (SCIS). ; 2010.'
apa: 'Schryen, G. (2010). An Analysis of Literature Reviews on IS Business Value:
How Deficiencies in Methodology and Theory Use Resulted in Limited Effectiveness.
In Proceedings of the First Scandinavian Conference on Information Systems
(SCIS).'
bibtex: '@inproceedings{Schryen_2010, title={An Analysis of Literature Reviews on
IS Business Value: How Deficiencies in Methodology and Theory Use Resulted in
Limited Effectiveness}, booktitle={Proceedings of the First Scandinavian Conference
on Information Systems (SCIS)}, author={Schryen, Guido}, year={2010} }'
chicago: 'Schryen, Guido. “An Analysis of Literature Reviews on IS Business Value:
How Deficiencies in Methodology and Theory Use Resulted in Limited Effectiveness.”
In Proceedings of the First Scandinavian Conference on Information Systems
(SCIS), 2010.'
ieee: 'G. Schryen, “An Analysis of Literature Reviews on IS Business Value: How
Deficiencies in Methodology and Theory Use Resulted in Limited Effectiveness,”
in Proceedings of the First Scandinavian Conference on Information Systems
(SCIS), 2010.'
mla: 'Schryen, Guido. “An Analysis of Literature Reviews on IS Business Value: How
Deficiencies in Methodology and Theory Use Resulted in Limited Effectiveness.”
Proceedings of the First Scandinavian Conference on Information Systems (SCIS),
2010.'
short: 'G. Schryen, in: Proceedings of the First Scandinavian Conference on Information
Systems (SCIS), 2010.'
date_created: 2018-11-14T14:36:26Z
date_updated: 2022-01-06T07:02:18Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-11T15:14:51Z
date_updated: 2018-12-13T15:17:00Z
file_id: '6186'
file_name: 2010_Book_ScandinavianInformationSystems - Schryen.pdf
file_size: 302340
relation: main_file
file_date_updated: 2018-12-13T15:17:00Z
has_accepted_license: '1'
keyword:
- Literature review
- Business value
- Information systems
- Methodology
- Theory
language:
- iso: eng
oa: '1'
publication: Proceedings of the First Scandinavian Conference on Information Systems
(SCIS)
status: public
title: 'An Analysis of Literature Reviews on IS Business Value: How Deficiencies in
Methodology and Theory Use Resulted in Limited Effectiveness'
type: conference
user_id: '61579'
year: '2010'
...
---
_id: '5644'
abstract:
- lang: eng
text: The economic relevance of information systems has been studied for many years
and has attracted an abundance of research papers. However, the ?productivity
paradoxon? of the 90s, Carr?s widely recognized paper ?IT doesn?t matter?, and
several studies that do not find a positive correlation between IS investments
and economic performance reveal long-lasting difficulties for IS researchers to
explain ?IS business value?. Business executives and researchers also continue
to question the value of IS investments. This raises the question of whether literature
reviews have tapped their potential to address the concerns by covering key research
areas of IS business value and preserving their key findings. In order to address
this question, this paper identifies and describes 12 key research areas, and
synthesizes what literature reviews published in pertinent academic outlets have
done to preserve knowledge. The analysis of 22 literature reviews shows that some
crucial areas have not been (sufficiently) covered. They provide fertile areas
for future literature reviews. As this work is based on the results of more than
200 research papers, it is capable of drawing a comprehensive picture of the current
state-of-the-art in IS business value research.
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
citation:
ama: 'Schryen G. Preserving knowledge on IS business value: what literature reviews
have done. Business \& Information Systems Engineering (BISE). 2010;52(4):225-237.'
apa: 'Schryen, G. (2010). Preserving knowledge on IS business value: what literature
reviews have done. Business \& Information Systems Engineering (BISE),
52(4), 225–237.'
bibtex: '@article{Schryen_2010, title={Preserving knowledge on IS business value:
what literature reviews have done}, volume={52}, number={4}, journal={Business
\& Information Systems Engineering (BISE)}, publisher={Springer}, author={Schryen,
Guido}, year={2010}, pages={225–237} }'
chicago: 'Schryen, Guido. “Preserving Knowledge on IS Business Value: What Literature
Reviews Have Done.” Business \& Information Systems Engineering (BISE)
52, no. 4 (2010): 225–37.'
ieee: 'G. Schryen, “Preserving knowledge on IS business value: what literature reviews
have done,” Business \& Information Systems Engineering (BISE), vol.
52, no. 4, pp. 225–237, 2010.'
mla: 'Schryen, Guido. “Preserving Knowledge on IS Business Value: What Literature
Reviews Have Done.” Business \& Information Systems Engineering (BISE),
vol. 52, no. 4, Springer, 2010, pp. 225–37.'
short: G. Schryen, Business \& Information Systems Engineering (BISE) 52 (2010)
225–237.
date_created: 2018-11-14T14:38:02Z
date_updated: 2022-01-06T07:02:19Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-11T15:19:37Z
date_updated: 2018-12-13T15:17:12Z
file_id: '6187'
file_name: BISE-PreservingknowledgeonISbusinessvalue-Manuscript-1.pdf
file_size: 525443
relation: main_file
file_date_updated: 2018-12-13T15:17:12Z
has_accepted_license: '1'
intvolume: ' 52'
issue: '4'
keyword:
- Business value
- Information systems
- Literature review
- Meta review
language:
- iso: eng
oa: '1'
page: 225-237
publication: Business \& Information Systems Engineering (BISE)
publisher: Springer
status: public
title: 'Preserving knowledge on IS business value: what literature reviews have done'
type: journal_article
user_id: '61579'
volume: 52
year: '2010'
...
---
_id: '5645'
abstract:
- lang: eng
text: The economic relevance of information systems has been studied for many years
and has attracted an abundance of research papers. However, the ?productivity
paradoxon? of the 1990s, Carr?s widely recognized paper ?IT doesn?t matter?, and
several studies that do not find a positive correlation between IS investments
and economic performance reveal long-lasting difficulties for IS researchers to
explain ?IS business value?. Business executives and researchers also continue
to question the value of IS investments. This raises the question of whether literature
reviews have tapped their potential to address the concerns by covering key research
areas of IS business value and preserving their key findings. In order to address
this question, this paper identifies and describes 12 key research areas, and
synthesizes what literature reviews published in pertinent academic outlets have
done to preserve knowledge. The analysis of 22 literature reviews shows that some
crucial areas have not been (sufficiently) covered. They provide fertile areas
for future literature reviews. As this work is based on the results of more than
200 research papers, it is capable of drawing a comprehensive picture of the current
state-of-the-art in IS business value research.
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
citation:
ama: Schryen G. Ökonomischer Wert von Informationssystemen - Beitrag von Literatur-Reviews
zum Wissenserhalt ( = Preserving Knowledge on IS Business Value. What Literature
Reviews Have Done). Wirtschaftsinformatik. 2010;52(4):225-237.
apa: Schryen, G. (2010). Ökonomischer Wert von Informationssystemen - Beitrag von
Literatur-Reviews zum Wissenserhalt ( = Preserving Knowledge on IS Business Value.
What Literature Reviews Have Done). Wirtschaftsinformatik, 52(4),
225–237.
bibtex: '@article{Schryen_2010, title={Ökonomischer Wert von Informationssystemen
- Beitrag von Literatur-Reviews zum Wissenserhalt ( = Preserving Knowledge on
IS Business Value. What Literature Reviews Have Done)}, volume={52}, number={4},
journal={Wirtschaftsinformatik}, publisher={Gabler; Springer}, author={Schryen,
Guido}, year={2010}, pages={225–237} }'
chicago: 'Schryen, Guido. “Ökonomischer Wert von Informationssystemen - Beitrag
von Literatur-Reviews Zum Wissenserhalt ( = Preserving Knowledge on IS Business
Value. What Literature Reviews Have Done).” Wirtschaftsinformatik 52, no.
4 (2010): 225–37.'
ieee: G. Schryen, “Ökonomischer Wert von Informationssystemen - Beitrag von Literatur-Reviews
zum Wissenserhalt ( = Preserving Knowledge on IS Business Value. What Literature
Reviews Have Done),” Wirtschaftsinformatik, vol. 52, no. 4, pp. 225–237,
2010.
mla: Schryen, Guido. “Ökonomischer Wert von Informationssystemen - Beitrag von Literatur-Reviews
Zum Wissenserhalt ( = Preserving Knowledge on IS Business Value. What Literature
Reviews Have Done).” Wirtschaftsinformatik, vol. 52, no. 4, Gabler; Springer,
2010, pp. 225–37.
short: G. Schryen, Wirtschaftsinformatik 52 (2010) 225–237.
date_created: 2018-11-14T14:38:45Z
date_updated: 2022-01-06T07:02:19Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-11T15:21:36Z
date_updated: 2018-12-13T15:19:50Z
file_id: '6189'
file_name: Schryen2010_Article_ÖkonomischerWertVonInformation.pdf
file_size: 850718
relation: main_file
file_date_updated: 2018-12-13T15:19:50Z
has_accepted_license: '1'
intvolume: ' 52'
issue: '4'
language:
- iso: eng
oa: '1'
page: 225-237
publication: Wirtschaftsinformatik
publisher: Gabler; Springer
status: public
title: Ökonomischer Wert von Informationssystemen - Beitrag von Literatur-Reviews
zum Wissenserhalt ( = Preserving Knowledge on IS Business Value. What Literature
Reviews Have Done)
type: journal_article
user_id: '61579'
volume: 52
year: '2010'
...
---
_id: '5597'
abstract:
- lang: eng
text: Der Beitrag diskutiert die kontroversen Ans{\"a}tze ? Verifizierung versus
Evaluation/Zertifizierung ? zur Sicherung elektronischer Wahlen mit Wahlger{\"a}ten.
Dabei spielt das Urteils des Bundesverfassungsgerichts [BVG099] eine zentrale
Rolle. Hierin wird entschieden, dass die Zertifizierung des Wahlger{\"a}tes nicht
ausreicht und es werden Verifizierungsfunktionen gefordert, die den W{\"a}hlern
die M{\"o}glichkeit geben sich von der Integrit{\"a}t des Wahlergebnisses zu {\"u}berzeugen.
Der Beitrag zeigt auf, dass auch mit der Implementierung entsprechender Verifizierungsfunktionen
nicht auf Zertifizierung verzichtet werden kann, da an ein Wahlger{\"a}t auch
andere Anforderungen wie etwa hinsichtlich des Wahlgeheimnisses gestellt werden.
Es wird au{\ss}erdem die Frage diskutiert, warum der Zertifizierung hinsichtlich
dieser zus{\"a}tzlichen Anforderungen vertraut werden kann, w{\"a}hrend dies nicht
der Fall bei der Integrit{\"a}tsanforderung ist.
author:
- first_name: Melanie
full_name: Volkamer, Melanie
last_name: Volkamer
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
- first_name: Lucie
full_name: Langer, Lucie
last_name: Langer
- first_name: Axel
full_name: Schmidt, Axel
last_name: Schmidt
- first_name: Johannes
full_name: Buchmann, Johannes
last_name: Buchmann
citation:
ama: 'Volkamer M, Schryen G, Langer L, Schmidt A, Buchmann J. Elektronische Wahlen:
Verifizierung vs. Zertifizierung. In: Workshop Elektronische Wahlen, Elektronische
Teilhabe, Societyware, 39th GI-Jahrestagung. ; 2009.'
apa: 'Volkamer, M., Schryen, G., Langer, L., Schmidt, A., & Buchmann, J. (2009).
Elektronische Wahlen: Verifizierung vs. Zertifizierung. In Workshop Elektronische
Wahlen, elektronische Teilhabe, Societyware, 39th GI-Jahrestagung.'
bibtex: '@inproceedings{Volkamer_Schryen_Langer_Schmidt_Buchmann_2009, title={Elektronische
Wahlen: Verifizierung vs. Zertifizierung}, booktitle={Workshop Elektronische Wahlen,
elektronische Teilhabe, Societyware, 39th GI-Jahrestagung}, author={Volkamer,
Melanie and Schryen, Guido and Langer, Lucie and Schmidt, Axel and Buchmann, Johannes},
year={2009} }'
chicago: 'Volkamer, Melanie, Guido Schryen, Lucie Langer, Axel Schmidt, and Johannes
Buchmann. “Elektronische Wahlen: Verifizierung vs. Zertifizierung.” In Workshop
Elektronische Wahlen, Elektronische Teilhabe, Societyware, 39th GI-Jahrestagung,
2009.'
ieee: 'M. Volkamer, G. Schryen, L. Langer, A. Schmidt, and J. Buchmann, “Elektronische
Wahlen: Verifizierung vs. Zertifizierung,” in Workshop Elektronische Wahlen,
elektronische Teilhabe, Societyware, 39th GI-Jahrestagung, 2009.'
mla: 'Volkamer, Melanie, et al. “Elektronische Wahlen: Verifizierung vs. Zertifizierung.”
Workshop Elektronische Wahlen, Elektronische Teilhabe, Societyware, 39th GI-Jahrestagung,
2009.'
short: 'M. Volkamer, G. Schryen, L. Langer, A. Schmidt, J. Buchmann, in: Workshop
Elektronische Wahlen, Elektronische Teilhabe, Societyware, 39th GI-Jahrestagung,
2009.'
date_created: 2018-11-14T11:49:04Z
date_updated: 2022-01-06T07:02:05Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-18T13:15:26Z
date_updated: 2018-12-18T13:15:26Z
file_id: '6313'
file_name: Elektronische Wahlen - GI 2009.pdf
file_size: 60870
relation: main_file
file_date_updated: 2018-12-18T13:15:26Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: Workshop Elektronische Wahlen, elektronische Teilhabe, Societyware, 39th
GI-Jahrestagung
status: public
title: 'Elektronische Wahlen: Verifizierung vs. Zertifizierung'
type: conference
user_id: '61579'
year: '2009'
...
---
_id: '5621'
abstract:
- lang: eng
text: Remote voting through the Internet provides convenience and access to the
electorate. At the same time, the security concerns facing any distributed application
are magnified when the task is so crucial to democratic society. In addition,
some of the electoral process loses transparency when it is encapsulated in information
technology. In this paper, we examine the public record of three recent elections
that used Internet voting. Our specific goal is to identify any potential flaws
that security experts would recognize, but may have not been identified in the
rush to implement technology. To do this, we present a multiple exploratory case
study, looking at elections conducted between 2006 and 2007 in Estonia, Netherlands,
and Switzerland. These elections were selected as particularly interesting and
accessible, and each presents its own technical and security challenges. The electoral
environment, technical design and process for each election are described, including
reconstruction of details which are implied but not specified within the source
material. We found that all three elections warrant significant concern about
voter security, verifiability, and transparency. Usability, our fourth area of
focus, seems to have been well-addressed in these elections. While our analysis
is based on public documents and previously published reports, and therefore lacking
access to any confidential materials held by electoral officials, this comparative
analysis provides interesting insight and consistent questions across all these
cases. Effective review of Internet voting requires an aggressive stance towards
identifying potential security and operational flaws, and we encourage the use
of third party reviews with critical technology skills during design, programming,
and voting to reduce the changes of failure or fraud that would undermine public
confidence.
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
- first_name: Eliot
full_name: Rich, Eliot
last_name: Rich
citation:
ama: 'Schryen G, Rich E. Security in Large-Scale Internet Elections: A Retrospective
Analysis of Elections in Estonia, The Netherlands, and Switzerland. IEEE Transactions
on Information Forensics \& Security. 2009;4(4 Part):729-744.'
apa: 'Schryen, G., & Rich, E. (2009). Security in Large-Scale Internet Elections:
A Retrospective Analysis of Elections in Estonia, The Netherlands, and Switzerland.
IEEE Transactions on Information Forensics \& Security, 4(4
Part), 729–744.'
bibtex: '@article{Schryen_Rich_2009, title={Security in Large-Scale Internet Elections:
A Retrospective Analysis of Elections in Estonia, The Netherlands, and Switzerland},
volume={4}, number={4 Part}, journal={IEEE Transactions on Information Forensics
\& Security}, publisher={IEEE}, author={Schryen, Guido and Rich, Eliot}, year={2009},
pages={729–744} }'
chicago: 'Schryen, Guido, and Eliot Rich. “Security in Large-Scale Internet Elections:
A Retrospective Analysis of Elections in Estonia, The Netherlands, and Switzerland.”
IEEE Transactions on Information Forensics \& Security 4, no. 4 Part
(2009): 729–44.'
ieee: 'G. Schryen and E. Rich, “Security in Large-Scale Internet Elections: A Retrospective
Analysis of Elections in Estonia, The Netherlands, and Switzerland,” IEEE Transactions
on Information Forensics \& Security, vol. 4, no. 4 Part, pp. 729–744,
2009.'
mla: 'Schryen, Guido, and Eliot Rich. “Security in Large-Scale Internet Elections:
A Retrospective Analysis of Elections in Estonia, The Netherlands, and Switzerland.”
IEEE Transactions on Information Forensics \& Security, vol. 4, no.
4 Part, IEEE, 2009, pp. 729–44.'
short: G. Schryen, E. Rich, IEEE Transactions on Information Forensics \& Security
4 (2009) 729–744.
date_created: 2018-11-14T14:06:44Z
date_updated: 2022-01-06T07:02:12Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-18T13:16:07Z
date_updated: 2018-12-18T13:16:07Z
file_id: '6316'
file_name: JOURNAL VERSION.pdf
file_size: 1544790
relation: main_file
file_date_updated: 2018-12-18T13:16:07Z
has_accepted_license: '1'
intvolume: ' 4'
issue: 4 Part
keyword:
- e-voting
- Internet voting
- Internet election
- security
- verifiability
- RIES
- Estonia
- Neuch{\^a}tel
language:
- iso: eng
oa: '1'
page: 729-744
publication: IEEE Transactions on Information Forensics \& Security
publisher: IEEE
status: public
title: 'Security in Large-Scale Internet Elections: A Retrospective Analysis of Elections
in Estonia, The Netherlands, and Switzerland'
type: journal_article
user_id: '61579'
volume: 4
year: '2009'
...
---
_id: '5625'
abstract:
- lang: eng
text: The increasing availability and deployment of open source software in personal
and commercial environments makes open source software highly appealing for hackers,
and others who are interested in exploiting software vulnerabilities. This deployment
has resulted in a debate ?full of religion? on the security of open source software
compared to that of closed source software. However, beyond such arguments, only
little quantitative analysis on this research issue has taken place. We discuss
the state-of-the-art of the security debate and identify shortcomings. Based on
these, we propose new metrics, which allows to answer the question to what extent
the review process of open source and closed source development has helped to
fix vulnerabilities. We illustrate the application of some of these metrics in
a case study on OpenOffice (open source software) vs. Microsoft Office (closed
source software).
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
- first_name: Rouven
full_name: Kadura, Rouven
last_name: Kadura
citation:
ama: 'Schryen G, Kadura R. Open Source vs. Closed Source Software: Towards Measuring
Security. In: 24th Annual ACM Symposium on Applied Computing. ; 2009.'
apa: 'Schryen, G., & Kadura, R. (2009). Open Source vs. Closed Source Software:
Towards Measuring Security. In 24th Annual ACM Symposium on Applied Computing.'
bibtex: '@inproceedings{Schryen_Kadura_2009, title={Open Source vs. Closed Source
Software: Towards Measuring Security}, booktitle={24th Annual ACM Symposium on
Applied Computing}, author={Schryen, Guido and Kadura, Rouven}, year={2009} }'
chicago: 'Schryen, Guido, and Rouven Kadura. “Open Source vs. Closed Source Software:
Towards Measuring Security.” In 24th Annual ACM Symposium on Applied Computing,
2009.'
ieee: 'G. Schryen and R. Kadura, “Open Source vs. Closed Source Software: Towards
Measuring Security,” in 24th Annual ACM Symposium on Applied Computing,
2009.'
mla: 'Schryen, Guido, and Rouven Kadura. “Open Source vs. Closed Source Software:
Towards Measuring Security.” 24th Annual ACM Symposium on Applied Computing,
2009.'
short: 'G. Schryen, R. Kadura, in: 24th Annual ACM Symposium on Applied Computing,
2009.'
date_created: 2018-11-14T14:12:27Z
date_updated: 2022-01-06T07:02:13Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-18T13:14:09Z
date_updated: 2018-12-18T13:14:09Z
file_id: '6310'
file_name: ACM VERSION.pdf
file_size: 456497
relation: main_file
file_date_updated: 2018-12-18T13:14:09Z
has_accepted_license: '1'
keyword:
- Open source software
- Closed source software
- Security
- Metrics
language:
- iso: eng
oa: '1'
publication: 24th Annual ACM Symposium on Applied Computing
status: public
title: 'Open Source vs. Closed Source Software: Towards Measuring Security'
type: conference
user_id: '61579'
year: '2009'
...
---
_id: '5646'
abstract:
- lang: eng
text: While many theoretical arguments against or in favor of open source and closed
source software development have been presented, the empirical basis for the assessment
of arguments is still weak. Addressing this research gap, this paper presents
a comprehensive empirical investigation of the patching behavior of software vendors/communities
of widely deployed open source and closed source software packages, including
operating systems, database systems, web browsers, email clients, and office systems.
As the value of any empirical study relies on the quality of data available, this
paper also discusses in detail data issues, explains to what extent the empirical
analysis can be based on vulnerability data contained in the NIST National Vulnerability
Database, and shows how data on vulnerability patches was collected by the author
to support this study. The results of the analysis suggest that it is not the
particular software development style that determines patching behavior, but rather
the policy of the particular software vendor.
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
citation:
ama: 'Schryen G. A comprehensive and comparative analysis of the patching behavior
of open source and closed source software vendors. In: 5th International Conference
on IT Security Incident Management \& IT Forensics. ; 2009.'
apa: Schryen, G. (2009). A comprehensive and comparative analysis of the patching
behavior of open source and closed source software vendors. In 5th International
Conference on IT Security Incident Management \& IT Forensics.
bibtex: '@inproceedings{Schryen_2009, title={A comprehensive and comparative analysis
of the patching behavior of open source and closed source software vendors}, booktitle={5th
International Conference on IT Security Incident Management \& IT Forensics},
author={Schryen, Guido}, year={2009} }'
chicago: Schryen, Guido. “A Comprehensive and Comparative Analysis of the Patching
Behavior of Open Source and Closed Source Software Vendors.” In 5th International
Conference on IT Security Incident Management \& IT Forensics, 2009.
ieee: G. Schryen, “A comprehensive and comparative analysis of the patching behavior
of open source and closed source software vendors,” in 5th International Conference
on IT Security Incident Management \& IT Forensics, 2009.
mla: Schryen, Guido. “A Comprehensive and Comparative Analysis of the Patching Behavior
of Open Source and Closed Source Software Vendors.” 5th International Conference
on IT Security Incident Management \& IT Forensics, 2009.
short: 'G. Schryen, in: 5th International Conference on IT Security Incident Management
\& IT Forensics, 2009.'
date_created: 2018-11-14T14:40:04Z
date_updated: 2022-01-06T07:02:19Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-18T13:14:48Z
date_updated: 2018-12-18T13:14:48Z
file_id: '6311'
file_name: Conference Version.pdf
file_size: 594302
relation: main_file
file_date_updated: 2018-12-18T13:14:48Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: 5th International Conference on IT Security Incident Management \& IT
Forensics
status: public
title: A comprehensive and comparative analysis of the patching behavior of open source
and closed source software vendors
type: conference
user_id: '61579'
year: '2009'
...
---
_id: '5647'
abstract:
- lang: eng
text: Reviewing literature on open source and closed source security reveals that
the discussion is often determined by biased attitudes toward one of these development
styles. The discussion specifically lacks appropriate metrics, methodology and
hard data. This paper contributes to solving this problem by analyzing and comparing
published vulnerabilities of eight open source software and nine closed source
software packages, all of which are widely deployed. Thereby, it provides an extensive
empirical analysis of vulnerabilities in terms of mean time between vulnerability
disclosures, the development of disclosure over time, and the severity of vulnerabilities,
and allows for validating models provided in the literature. The investigation
reveals that (a) the mean time between vulnerability disclosures was lower for
open source software in half of the cases, while the other cases show no differences,
(b) in contrast to literature assumption, 14 out of 17 software packages showed
a significant linear or piecewise linear correlation between time and the number
of published vulnerabilities, and (c) regarding the severity of vulnerabilities,
no significant differences were found between open source and closed source.
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
citation:
ama: 'Schryen G. Security of open source and closed source software: An empirical
comparison of published vulnerabilities. In: 15th Americas Conference on Information
Systems. ; 2009.'
apa: 'Schryen, G. (2009). Security of open source and closed source software: An
empirical comparison of published vulnerabilities. In 15th Americas Conference
on Information Systems.'
bibtex: '@inproceedings{Schryen_2009, title={Security of open source and closed
source software: An empirical comparison of published vulnerabilities}, booktitle={15th
Americas Conference on Information Systems}, author={Schryen, Guido}, year={2009}
}'
chicago: 'Schryen, Guido. “Security of Open Source and Closed Source Software: An
Empirical Comparison of Published Vulnerabilities.” In 15th Americas Conference
on Information Systems, 2009.'
ieee: 'G. Schryen, “Security of open source and closed source software: An empirical
comparison of published vulnerabilities,” in 15th Americas Conference on Information
Systems, 2009.'
mla: 'Schryen, Guido. “Security of Open Source and Closed Source Software: An Empirical
Comparison of Published Vulnerabilities.” 15th Americas Conference on Information
Systems, 2009.'
short: 'G. Schryen, in: 15th Americas Conference on Information Systems, 2009.'
date_created: 2018-11-14T14:41:24Z
date_updated: 2022-01-06T07:02:19Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-18T13:16:39Z
date_updated: 2018-12-18T13:16:39Z
file_id: '6317'
file_name: Security of Open Source and Closed Source Software An Empirical - AMCIS
Version.pdf
file_size: 483690
relation: main_file
file_date_updated: 2018-12-18T13:16:39Z
has_accepted_license: '1'
keyword:
- Vulnerabilities
- security
- open source software
- closed source software
- empirical comparison
language:
- iso: eng
oa: '1'
publication: 15th Americas Conference on Information Systems
status: public
title: 'Security of open source and closed source software: An empirical comparison
of published vulnerabilities'
type: conference
user_id: '61579'
year: '2009'
...