@inproceedings{2785,
  author       = {{Kundisch, Dennis and Klein, C.}},
  booktitle    = {{International Federation of Classification Societies 2009 Conference}},
  location     = {{Dresden, Germany}},
  title        = {{{An Evaluation Framework for Tracker Certificates during the Financial Crisis and beyond}}},
  year         = {{2009}},
}

@inbook{2787,
  author       = {{Dorfleitner, G. and Klein, C. and Kundisch, Dennis}},
  booktitle    = {{Monetary Growth: Trends, Impacts and Policies}},
  publisher    = {{Nova Science Publishers}},
  title        = {{{Technical Analysis as a Method of Risk Management}}},
  year         = {{2009}},
}

@book{2792,
  editor       = {{Kundisch, Dennis and Veit, D. and Weitzel, T. and Weinhardt, C.}},
  publisher    = {{Springer}},
  title        = {{{Proceedings of the 4th International Workshop on Enterprise Applications and Services in the Finance Industry}}},
  volume       = {{23}},
  year         = {{2009}},
}

@techreport{5072,
  author       = {{Institut für Normung e.V., Deutsches}},
  title        = {{{PAS 1094: Hybride Wertschöpfung --- Integration von Produktion und Dienstleistung.}}},
  year         = {{2009}},
}

@inproceedings{5597,
  abstract     = {{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       = {{Volkamer, Melanie and Schryen, Guido and Langer, Lucie and Schmidt, Axel and Buchmann, Johannes}},
  booktitle    = {{Workshop Elektronische Wahlen, elektronische Teilhabe, Societyware, 39th GI-Jahrestagung}},
  title        = {{{Elektronische Wahlen: Verifizierung vs. Zertifizierung}}},
  year         = {{2009}},
}

@article{5621,
  abstract     = {{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       = {{Schryen, Guido and Rich, Eliot}},
  journal      = {{IEEE Transactions on Information Forensics \& Security}},
  keywords     = {{e-voting, Internet voting, Internet election, security, verifiability, RIES, Estonia, Neuch{\^a}tel}},
  number       = {{4 Part}},
  pages        = {{729--744}},
  publisher    = {{IEEE}},
  title        = {{{Security in Large-Scale Internet Elections: A Retrospective Analysis of Elections in Estonia, The Netherlands, and Switzerland}}},
  volume       = {{4}},
  year         = {{2009}},
}

@inproceedings{5625,
  abstract     = {{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       = {{Schryen, Guido and Kadura, Rouven}},
  booktitle    = {{24th Annual ACM Symposium on Applied Computing}},
  keywords     = {{Open source software, Closed source software, Security, Metrics}},
  title        = {{{Open Source vs. Closed Source Software: Towards Measuring Security}}},
  year         = {{2009}},
}

@inproceedings{5646,
  abstract     = {{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       = {{Schryen, Guido}},
  booktitle    = {{5th International Conference on IT Security Incident Management \& IT Forensics}},
  title        = {{{A comprehensive and comparative analysis of the patching behavior of open source and closed source software vendors}}},
  year         = {{2009}},
}

@inproceedings{5647,
  abstract     = {{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       = {{Schryen, Guido}},
  booktitle    = {{15th Americas Conference on Information Systems}},
  keywords     = {{Vulnerabilities, security, open source software, closed source software, empirical comparison}},
  title        = {{{Security of open source and closed source software: An empirical comparison of published vulnerabilities}}},
  year         = {{2009}},
}

@inbook{17131,
  author       = {{Becker, Jörg and Matzner, Martin and Müller, Oliver}},
  booktitle    = {{Information Systems Development}},
  isbn         = {{9780387848099}},
  pages        = {{207--215}},
  publisher    = {{Springer}},
  title        = {{{Comparing Architectural Styles for Service-Oriented Architectures – a REST vs. SOAP Case Study}}},
  doi          = {{10.1007/b137171_22}},
  year         = {{2009}},
}

@inproceedings{17132,
  author       = {{Becker, Jörg and Bergener, Katrin and Müller, Oliver and Müller-Wienbergen, Felix}},
  booktitle    = {{Americas Conference on Information Systems}},
  pages        = {{93}},
  title        = {{{Documentation of flexible business processes-A healthcare case study}}},
  year         = {{2009}},
}

@inproceedings{17133,
  author       = {{Müller-Wienbergen, Felix and Seidel, Stefan and Müller, Oliver and Knackstedt, Ralf and Becker, Joerg}},
  booktitle    = {{European Conference on Information Systems}},
  title        = {{{A design research study on enhancing creativity-The case of developing product-service bundles}}},
  year         = {{2009}},
}

@article{13257,
  author       = {{Trier, Matthias and Bobrik, Annette}},
  issn         = {{1089-7801}},
  journal      = {{IEEE Internet Computing}},
  pages        = {{51--59}},
  title        = {{{Social Search: Exploring and Searching Social Architectures in Digital Networks}}},
  doi          = {{10.1109/mic.2009.44}},
  year         = {{2009}},
}

@inproceedings{13312,
  author       = {{Sanmateu, Maria-Amparo and Trier, Matthias and Lienicke, Andreas and Rederer, Andreas}},
  booktitle    = {{9th International Conference On Innovative Internet Community Systems I2CS 2010}},
  editor       = {{Erfurth, Christian AND Eichler, Gerald AND Schau, Volkmar}},
  pages        = {{ 27--35 }},
  publisher    = {{Gesellschaft für Informatik e.V.}},
  title        = {{{Enabling social media content quality assurance using social network analysis}}},
  year         = {{2009}},
}

@inproceedings{13349,
  author       = {{Bobrik, Annette and Trier, Matthias}},
  booktitle    = {{Proceedings Wirtschaftsinformatik}},
  pages        = {{295--304}},
  publisher    = {{Österreichische Computer Gesellschaft Verlag}},
  title        = {{{Content-based Community Detection in Social Corpora}}},
  volume       = {{1}},
  year         = {{2009}},
}

@inproceedings{13352,
  author       = {{Trier, Matthias and Herzog, Michael and Möller, Daniel}},
  booktitle    = {{Proceedings Wirtschaftsinformatik}},
  pages        = {{391--400}},
  publisher    = {{Österreichische Computer Gesellschaft Verlag}},
  title        = {{{Odp2cp – ein rapid E-Learning Ansatz zur einfachen Produktion Scorm-konformer Lerninhalte}}},
  year         = {{2009}},
}

@inproceedings{3477,
  author       = {{Becker, Jörg and Beverungen, Daniel and Knackstedt, Ralf}},
  booktitle    = {{Proceedings of the 41th Hawai'i International Conference on System Sciences}},
  location     = {{Waikoloa, Hawaii}},
  title        = {{{Reference Models and Modeling Languages for Product-Service Systems --- Status-Quo and Perspectives for Further Research}}},
  year         = {{2008}},
}

@inproceedings{3478,
  author       = {{Becker, Jörg and Beverungen, Daniel and Knackstedt, Ralf and Müller, Oliver}},
  booktitle    = {{Americas Conference on Information Systems}},
  location     = {{Toronto, Canada}},
  title        = {{{Modeling, Customer-Specific Configuration and Calculation of Value Bundles}}},
  year         = {{2008}},
}

@inproceedings{3479,
  author       = {{Beverungen, Daniel and Kaiser, Uwe and Knackstedt, Ralf and Krings, Robin and Stein, Armin}},
  booktitle    = {{Proceedings of the Multikonferenz Wirtschaftsinformatik (MKWI 2008)}},
  location     = {{München}},
  pages        = {{735----747}},
  title        = {{{Konfigurative Prozessmodellierung der hybriden Leistungserstellung in Unternehmensnetzwerken des Maschinen- und Anlagenbaus}}},
  year         = {{2008}},
}

@inproceedings{3480,
  author       = {{Winkelmann, Axel and Beverungen, Daniel and Janiesch, Christian and Becker, Jörg}},
  booktitle    = {{Proceedings of the 16th European Conference on Information Systems}},
  location     = {{Galway, Ireland}},
  title        = {{{Improving the Quality of Article Master Data --- Specification of an Integrated Master Data Platform for Promotions in Retail}}},
  year         = {{2008}},
}