---
_id: '5579'
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. Operational Emergency Response under Informational
    Uncertainty: A Fuzzy Optimization Model for Scheduling and Allocating Rescue Units.
    In: <i>International Conference on Information Systems for Crisis Response and
    Management (ISCRAM) 2012</i>. ; 2012.'
  apa: 'Wex, F., Schryen, G., &#38; Neumann, D. (2012). Operational Emergency Response
    under Informational Uncertainty: A Fuzzy Optimization Model for Scheduling and
    Allocating Rescue Units. In <i>International Conference on Information Systems
    for Crisis Response and Management (ISCRAM) 2012</i>.'
  bibtex: '@inproceedings{Wex_Schryen_Neumann_2012, title={Operational Emergency Response
    under Informational Uncertainty: A Fuzzy Optimization Model for Scheduling and
    Allocating Rescue Units}, booktitle={International Conference on Information Systems
    for Crisis Response and Management (ISCRAM) 2012}, author={Wex, Felix and Schryen,
    Guido and Neumann, Dirk}, year={2012} }'
  chicago: 'Wex, Felix, Guido Schryen, and Dirk Neumann. “Operational Emergency Response
    under Informational Uncertainty: A Fuzzy Optimization Model for Scheduling and
    Allocating Rescue Units.” In <i>International Conference on Information Systems
    for Crisis Response and Management (ISCRAM) 2012</i>, 2012.'
  ieee: 'F. Wex, G. Schryen, and D. Neumann, “Operational Emergency Response under
    Informational Uncertainty: A Fuzzy Optimization Model for Scheduling and Allocating
    Rescue Units,” in <i>International Conference on Information Systems for Crisis
    Response and Management (ISCRAM) 2012</i>, 2012.'
  mla: 'Wex, Felix, et al. “Operational Emergency Response under Informational Uncertainty:
    A Fuzzy Optimization Model for Scheduling and Allocating Rescue Units.” <i>International
    Conference on Information Systems for Crisis Response and Management (ISCRAM)
    2012</i>, 2012.'
  short: 'F. Wex, G. Schryen, D. Neumann, in: International Conference on Information
    Systems for Crisis Response and Management (ISCRAM) 2012, 2012.'
date_created: 2018-11-14T11:16:58Z
date_updated: 2022-01-06T07:02:01Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
  content_type: application/pdf
  creator: hsiemes
  date_created: 2018-12-11T14:59:44Z
  date_updated: 2018-12-13T15:14:20Z
  file_id: '6176'
  file_name: Proceedings version - 152.pdf
  file_size: 614029
  relation: main_file
file_date_updated: 2018-12-13T15:14:20Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: International Conference on Information Systems for Crisis Response and
  Management (ISCRAM) 2012
status: public
title: 'Operational Emergency Response under Informational Uncertainty: A Fuzzy Optimization
  Model for Scheduling and Allocating Rescue Units'
type: conference
user_id: '61579'
year: '2012'
...
---
_id: '5615'
author:
- first_name: Guido
  full_name: Schryen, Guido
  id: '72850'
  last_name: Schryen
- first_name: Felix
  full_name: Wex, Felix
  last_name: Wex
citation:
  ama: 'Schryen G, Wex F. IS Design Thinking in Disaster Management Research. In:
    <i>45th Hawaii International Conference on System Sciences</i>. ; 2012.'
  apa: Schryen, G., &#38; Wex, F. (2012). IS Design Thinking in Disaster Management
    Research. In <i>45th Hawaii International Conference on System Sciences</i>.
  bibtex: '@inproceedings{Schryen_Wex_2012, title={IS Design Thinking in Disaster
    Management Research}, booktitle={45th Hawaii International Conference on System
    Sciences}, author={Schryen, Guido and Wex, Felix}, year={2012} }'
  chicago: Schryen, Guido, and Felix Wex. “IS Design Thinking in Disaster Management
    Research.” In <i>45th Hawaii International Conference on System Sciences</i>,
    2012.
  ieee: G. Schryen and F. Wex, “IS Design Thinking in Disaster Management Research,”
    in <i>45th Hawaii International Conference on System Sciences</i>, 2012.
  mla: Schryen, Guido, and Felix Wex. “IS Design Thinking in Disaster Management Research.”
    <i>45th Hawaii International Conference on System Sciences</i>, 2012.
  short: 'G. Schryen, F. Wex, in: 45th Hawaii International Conference on System Sciences,
    2012.'
date_created: 2018-11-14T13:59:23Z
date_updated: 2022-01-06T07:02:08Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
  content_type: application/pdf
  creator: hsiemes
  date_created: 2018-12-11T14:58:56Z
  date_updated: 2018-12-13T15:14:09Z
  file_id: '6175'
  file_name: PID2061325.pdf
  file_size: 207629
  relation: main_file
file_date_updated: 2018-12-13T15:14:09Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: 45th Hawaii International Conference on System Sciences
status: public
title: IS Design Thinking in Disaster Management Research
type: conference
user_id: '61579'
year: '2012'
...
---
_id: '5638'
author:
- first_name: Guido
  full_name: Schryen, Guido
  id: '72850'
  last_name: Schryen
citation:
  ama: 'Schryen G. Profis im Netz: Soziale Netzwerke könnten in Unternehmen viel mehr
    Nutzen stiften - woran hakt es?, in: Die Zeit (12.04.2012). <i>Die Zeit</i>. 2012.'
  apa: 'Schryen, G. (2012). Profis im Netz: Soziale Netzwerke könnten in Unternehmen
    viel mehr Nutzen stiften - woran hakt es?, in: Die Zeit (12.04.2012). <i>Die Zeit</i>.'
  bibtex: '@article{Schryen_2012, title={Profis im Netz: Soziale Netzwerke könnten
    in Unternehmen viel mehr Nutzen stiften - woran hakt es?, in: Die Zeit (12.04.2012)},
    journal={Die Zeit}, author={Schryen, Guido}, year={2012} }'
  chicago: 'Schryen, Guido. “Profis Im Netz: Soziale Netzwerke Könnten in Unternehmen
    Viel Mehr Nutzen Stiften - Woran Hakt Es?, In: Die Zeit (12.04.2012).” <i>Die
    Zeit</i>, 2012.'
  ieee: 'G. Schryen, “Profis im Netz: Soziale Netzwerke könnten in Unternehmen viel
    mehr Nutzen stiften - woran hakt es?, in: Die Zeit (12.04.2012),” <i>Die Zeit</i>,
    2012.'
  mla: 'Schryen, Guido. “Profis Im Netz: Soziale Netzwerke Könnten in Unternehmen
    Viel Mehr Nutzen Stiften - Woran Hakt Es?, In: Die Zeit (12.04.2012).” <i>Die
    Zeit</i>, 2012.'
  short: G. Schryen, Die Zeit (2012).
date_created: 2018-11-14T14:32:11Z
date_updated: 2022-01-06T07:02:16Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
  content_type: application/pdf
  creator: hsiemes
  date_created: 2018-12-11T15:01:42Z
  date_updated: 2018-12-13T15:15:22Z
  file_id: '6179'
  file_name: Zeit_Artikel_16_4_2012.pdf
  file_size: 260775
  relation: main_file
file_date_updated: 2018-12-13T15:15:22Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: Die Zeit
status: public
title: 'Profis im Netz: Soziale Netzwerke könnten in Unternehmen viel mehr Nutzen
  stiften - woran hakt es?, in: Die Zeit (12.04.2012)'
type: journal_article
user_id: '61579'
year: '2012'
...
---
_id: '5639'
author:
- first_name: Guido
  full_name: Schryen, Guido
  id: '72850'
  last_name: Schryen
citation:
  ama: 'Schryen G. Soziale Netzwerke in Unternehmenskontexten - Potentiale und Anforderungen,
    in: Information Management &#38; Consulting, to appear. <i>IM Information Management
    &#38; Consulting</i>. 2012.'
  apa: 'Schryen, G. (2012). Soziale Netzwerke in Unternehmenskontexten - Potentiale
    und Anforderungen, in: Information Management &#38; Consulting, to appear. <i>IM
    Information Management &#38; Consulting</i>.'
  bibtex: '@article{Schryen_2012, title={Soziale Netzwerke in Unternehmenskontexten
    - Potentiale und Anforderungen, in: Information Management &#38; Consulting, to
    appear}, journal={IM Information Management &#38; Consulting}, publisher={Information
    Multimedia Communication imc}, author={Schryen, Guido}, year={2012} }'
  chicago: 'Schryen, Guido. “Soziale Netzwerke in Unternehmenskontexten - Potentiale
    Und Anforderungen, in: Information Management &#38; Consulting, to Appear.” <i>IM
    Information Management &#38; Consulting</i>, 2012.'
  ieee: 'G. Schryen, “Soziale Netzwerke in Unternehmenskontexten - Potentiale und
    Anforderungen, in: Information Management &#38; Consulting, to appear,” <i>IM
    Information Management &#38; Consulting</i>, 2012.'
  mla: 'Schryen, Guido. “Soziale Netzwerke in Unternehmenskontexten - Potentiale Und
    Anforderungen, in: Information Management &#38; Consulting, to Appear.” <i>IM
    Information Management &#38; Consulting</i>, Information Multimedia Communication
    imc, 2012.'
  short: G. Schryen, IM Information Management &#38; Consulting (2012).
date_created: 2018-11-14T14:33:39Z
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: 2018-12-11T14:58:26Z
  date_updated: 2018-12-13T15:13:58Z
  file_id: '6174'
  file_name: IM-Artikel.pdf
  file_size: 467370
  relation: main_file
file_date_updated: 2018-12-13T15:13:58Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: IM Information Management & Consulting
publisher: Information Multimedia Communication imc
status: public
title: 'Soziale Netzwerke in Unternehmenskontexten - Potentiale und Anforderungen,
  in: Information Management & Consulting, to appear'
type: journal_article
user_id: '61579'
year: '2012'
...
---
_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: <i>Proceedings of the 2011 International Conference on Information Systems
    (ICIS 2011)</i>. ; 2011.'
  apa: Lang, F., Schryen, G., &#38; Fink, A. (2011). Automated Negotiations Under
    Uncertain Preferences. In <i>Proceedings of the 2011 International Conference
    on Information Systems (ICIS 2011)</i>.
  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 <i>Proceedings of the 2011 International Conference
    on Information Systems (ICIS 2011)</i>, 2011.
  ieee: F. Lang, G. Schryen, and A. Fink, “Automated Negotiations Under Uncertain
    Preferences,” in <i>Proceedings of the 2011 International Conference on Information
    Systems (ICIS 2011)</i>, 2011.
  mla: Lang, Fabian, et al. “Automated Negotiations Under Uncertain Preferences.”
    <i>Proceedings of the 2011 International Conference on Information Systems (ICIS
    2011)</i>, 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: <i>Proceedings of the 19th European Conference on
    Information Systems (ECIS 2011)</i>. ; 2011.'
  apa: Bodenstein, C., Schryen, G., &#38; Neumann, D. (2011). Reducing Datacenter
    Energy Usage through Efficient Job Allocation. In <i>Proceedings of the 19th European
    Conference on Information Systems (ECIS 2011)</i>.
  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 <i>Proceedings of the 19th
    European Conference on Information Systems (ECIS 2011)</i>, 2011.
  ieee: C. Bodenstein, G. Schryen, and D. Neumann, “Reducing Datacenter Energy Usage
    through Efficient Job Allocation,” in <i>Proceedings of the 19th European Conference
    on Information Systems (ECIS 2011)</i>, 2011.
  mla: Bodenstein, Christian, et al. “Reducing Datacenter Energy Usage through Efficient
    Job Allocation.” <i>Proceedings of the 19th European Conference on Information
    Systems (ECIS 2011)</i>, 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: <i>Proceedings of the 8th International
    Conference on Information Systems for Crisis Response and Management (ISCRAM 2011)</i>.
    ; 2011.'
  apa: Wex, F., Schryen, G., &#38; Neumann, D. (2011). Intelligent Decision Support
    for Centralized Coordination during Emergency Response. In <i>Proceedings of the
    8th International Conference on Information Systems for Crisis Response and Management
    (ISCRAM 2011)</i>.
  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 <i>Proceedings of
    the 8th International Conference on Information Systems for Crisis Response and
    Management (ISCRAM 2011)</i>, 2011.
  ieee: F. Wex, G. Schryen, and D. Neumann, “Intelligent Decision Support for Centralized
    Coordination during Emergency Response,” in <i>Proceedings of the 8th International
    Conference on Information Systems for Crisis Response and Management (ISCRAM 2011)</i>,
    2011.
  mla: Wex, Felix, et al. “Intelligent Decision Support for Centralized Coordination
    during Emergency Response.” <i>Proceedings of the 8th International Conference
    on Information Systems for Crisis Response and Management (ISCRAM 2011)</i>, 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: <i>Proceedings of the 26th Annual ACM Symposium on Applied
    Computing</i>. ; 2011.'
  apa: Schryen, G., Volkamer, M., &#38; Ries, S. (2011). A formal approach towards
    measuring trust in distributed systems. In <i>Proceedings of the 26th Annual ACM
    Symposium on Applied Computing</i>.
  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 <i>Proceedings of the 26th
    Annual ACM Symposium on Applied Computing</i>, 2011.
  ieee: G. Schryen, M. Volkamer, and S. Ries, “A formal approach towards measuring
    trust in distributed systems,” in <i>Proceedings of the 26th Annual ACM Symposium
    on Applied Computing</i>, 2011.
  mla: Schryen, Guido, et al. “A Formal Approach towards Measuring Trust in Distributed
    Systems.” <i>Proceedings of the 26th Annual ACM Symposium on Applied Computing</i>,
    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? <i>Communications of the ACM (CACM)</i>. 2011;Vol. 54(No. 5):130-139.
  apa: Schryen, G. (2011). Is open source security a myth? What do vulnerability and
    patch data say? <i>Communications of the ACM (CACM)</i>, <i>Vol. 54</i>(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?” <i>Communications of the ACM (CACM)</i> Vol. 54, no. No.
    5 (2011): 130–39.'
  ieee: G. Schryen, “Is open source security a myth? What do vulnerability and patch
    data say?,” <i>Communications of the ACM (CACM)</i>, 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?” <i>Communications of the ACM (CACM)</i>, 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: <i>IS Capabilities Change, and IS Innovation, Proceedings
    of the 19th European Conference on Information Systems (ECIS 2011), Helsinki</i>.
    ; 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 <i>IS Capabilities Change, and IS Innovation, Proceedings
    of the 19th European Conference on Information Systems (ECIS 2011), Helsinki</i>.
  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 <i>IS Capabilities Change, and IS Innovation, Proceedings
    of the 19th European Conference on Information Systems (ECIS 2011), Helsinki</i>,
    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 <i>IS Capabilities Change, and IS Innovation, Proceedings
    of the 19th European Conference on Information Systems (ECIS 2011), Helsinki</i>,
    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.” <i>IS Capabilities Change, and IS Innovation, Proceedings
    of the 19th European Conference on Information Systems (ECIS 2011), Helsinki</i>,
    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: <i>18th European Conference on Information
    Systems (ECIS 2010)</i>. ; 2010.'
  apa: Finkbeiner, J., Bodenstein, C., Schryen, G., &#38; Neumann, D. (2010). Applying
    heuristic methods for job scheduling in storage markets. In <i>18th European Conference
    on Information Systems (ECIS 2010)</i>.
  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 <i>18th
    European Conference on Information Systems (ECIS 2010)</i>, 2010.
  ieee: J. Finkbeiner, C. Bodenstein, G. Schryen, and D. Neumann, “Applying heuristic
    methods for job scheduling in storage markets,” in <i>18th European Conference
    on Information Systems (ECIS 2010)</i>, 2010.
  mla: Finkbeiner, Josef, et al. “Applying Heuristic Methods for Job Scheduling in
    Storage Markets.” <i>18th European Conference on Information Systems (ECIS 2010)</i>,
    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: <i>18th European Conference
    on Information Systems (ECIS 2010)</i>. ; 2010.'
  apa: Bodenstein, C., Schryen, G., &#38; 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 <i>18th European Conference on Information Systems (ECIS 2010)</i>.
  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 <i>18th European Conference on Information Systems (ECIS 2010)</i>, 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 <i>18th European Conference on Information Systems (ECIS 2010)</i>, 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.” <i>18th European Conference
    on Information Systems (ECIS 2010)</i>, 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: <i>Proceedings of the 23rd Bled EConference</i>.
    ; 2010.'
  apa: Volkamer, M., &#38; Schryen, G. (2010). Measuring eTrust in distributed systems
    - General Concept and Application to Internet Voting. In <i>Proceedings of the
    23rd Bled eConference</i>.
  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 <i>Proceedings
    of the 23rd Bled EConference</i>, 2010.
  ieee: M. Volkamer and G. Schryen, “Measuring eTrust in distributed systems - General
    Concept and Application to Internet Voting,” in <i>Proceedings of the 23rd Bled
    eConference</i>, 2010.
  mla: Volkamer, Melanie, and Guido Schryen. “Measuring ETrust in Distributed Systems
    - General Concept and Application to Internet Voting.” <i>Proceedings of the 23rd
    Bled EConference</i>, 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:
    <i>43rd Annual Hawaii International Conference on System Sciences</i>. ; 2010.'
  apa: Schryen, G., &#38; Eliot, R. (2010). Increasing software security through open
    source or closed source development? Empirics suggest that we have asked the wrong
    question. In <i>43rd Annual Hawaii International Conference on System Sciences</i>.
  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 <i>43rd Annual Hawaii International Conference on System Sciences</i>,
    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 <i>43rd Annual Hawaii International Conference on System Sciences</i>, 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.” <i>43rd Annual Hawaii International Conference on System Sciences</i>,
    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: <i>Proceedings of the 18th European Conference on Information Systems
    (ECIS 2010)</i>. ; 2010.'
  apa: Schryen, G., &#38; Bodenstein, C. (2010). A decision-theoretic foundation of
    IS business value research. In <i>Proceedings of the 18th European Conference
    on Information Systems (ECIS 2010)</i>.
  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 <i>Proceedings of the 18th European Conference
    on Information Systems (ECIS 2010)</i>, 2010.
  ieee: G. Schryen and C. Bodenstein, “A decision-theoretic foundation of IS business
    value research,” in <i>Proceedings of the 18th European Conference on Information
    Systems (ECIS 2010)</i>, 2010.
  mla: Schryen, Guido, and Christian Bodenstein. “A Decision-Theoretic Foundation
    of IS Business Value Research.” <i>Proceedings of the 18th European Conference
    on Information Systems (ECIS 2010)</i>, 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.
    <i>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</i>. 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.), <i>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</i> (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 <i>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</i>, 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 <i>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</i>, 2010, vol. 170, pp. 289–304.'
  mla: 'Schryen, Guido. “A Fuzzy Model for IT Security Investments.” <i>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</i>, 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: <i>Proceedings
    of the First Scandinavian Conference on Information Systems (SCIS)</i>. ; 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 <i>Proceedings of the First Scandinavian Conference on Information Systems
    (SCIS)</i>.'
  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 <i>Proceedings of the First Scandinavian Conference on Information Systems
    (SCIS)</i>, 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 <i>Proceedings of the First Scandinavian Conference on Information Systems
    (SCIS)</i>, 2010.'
  mla: 'Schryen, Guido. “An Analysis of Literature Reviews on IS Business Value: How
    Deficiencies in Methodology and Theory Use Resulted in Limited Effectiveness.”
    <i>Proceedings of the First Scandinavian Conference on Information Systems (SCIS)</i>,
    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. <i>Business \&#38; Information Systems Engineering (BISE)</i>. 2010;52(4):225-237.'
  apa: 'Schryen, G. (2010). Preserving knowledge on IS business value: what literature
    reviews have done. <i>Business \&#38; Information Systems Engineering (BISE)</i>,
    <i>52</i>(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
    \&#38; 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.” <i>Business \&#38; Information Systems Engineering (BISE)</i>
    52, no. 4 (2010): 225–37.'
  ieee: 'G. Schryen, “Preserving knowledge on IS business value: what literature reviews
    have done,” <i>Business \&#38; Information Systems Engineering (BISE)</i>, vol.
    52, no. 4, pp. 225–237, 2010.'
  mla: 'Schryen, Guido. “Preserving Knowledge on IS Business Value: What Literature
    Reviews Have Done.” <i>Business \&#38; Information Systems Engineering (BISE)</i>,
    vol. 52, no. 4, Springer, 2010, pp. 225–37.'
  short: G. Schryen, Business \&#38; 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). <i>Wirtschaftsinformatik</i>. 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). <i>Wirtschaftsinformatik</i>, <i>52</i>(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).” <i>Wirtschaftsinformatik</i> 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),” <i>Wirtschaftsinformatik</i>, 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).” <i>Wirtschaftsinformatik</i>, 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: <i>Workshop Elektronische Wahlen, Elektronische
    Teilhabe, Societyware, 39th GI-Jahrestagung</i>. ; 2009.'
  apa: 'Volkamer, M., Schryen, G., Langer, L., Schmidt, A., &#38; Buchmann, J. (2009).
    Elektronische Wahlen: Verifizierung vs. Zertifizierung. In <i>Workshop Elektronische
    Wahlen, elektronische Teilhabe, Societyware, 39th GI-Jahrestagung</i>.'
  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 <i>Workshop
    Elektronische Wahlen, Elektronische Teilhabe, Societyware, 39th GI-Jahrestagung</i>,
    2009.'
  ieee: 'M. Volkamer, G. Schryen, L. Langer, A. Schmidt, and J. Buchmann, “Elektronische
    Wahlen: Verifizierung vs. Zertifizierung,” in <i>Workshop Elektronische Wahlen,
    elektronische Teilhabe, Societyware, 39th GI-Jahrestagung</i>, 2009.'
  mla: 'Volkamer, Melanie, et al. “Elektronische Wahlen: Verifizierung vs. Zertifizierung.”
    <i>Workshop Elektronische Wahlen, Elektronische Teilhabe, Societyware, 39th GI-Jahrestagung</i>,
    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'
...