Publications

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Kolb, S., Lenhard J., Wirtz G.: Application Migration Effort in the Cloud
Services Transactions on Cloud Computing (STCC), 3(4), 2015.

Kolb, S., Lenhard J., Wirtz G.: Application Migration Effort in the Cloud - The Case of Cloud Platforms
Proceedings of the 8th IEEE International Conference on Cloud Computing (CLOUD), New York, NY, USA, June 27 - July 2, 2015.

Harrer S.; Lenhard J.; Wirtz G.; van Lessen T.: Towards Uniform BPEL Engine Management in the Cloud
Proceedings des CloudCycle14 Workshops auf der 44. Jahrestagung der Gesellschaft für Informatik e.V. (GI), Stuttgart, Germany, Gesellschaft für Informatik e.V. (GI), September, 2014

Harrer S.; R?ck C.; Wirtz G.: Automated and Isolated Tests for Complex Middleware Products: The Case of BPEL Engines
Proceedings of the 7th IEEE  International Conference on Software Testing, Verification and Validation Workshops (ICSTW 2014), Testing Tools Track, Cleveland, OH, USA, March 30 – April 4, 2014

Prei?inger C.; Harrer S.; Schuberth S.; Bimamisa D.; Wirtz G.: Towards Standard Conformant BPEL Engines: The Case of Static Analysis
Proceedings of the 6th Central-European Workshop on Services and their Composition (ZEUS), Potsdam, Germany, February 20 - 21, 2014

Lenhard J.: Towards Quantifying the Adaptability of Executable BPMN Processes
Proceedings of the 6th Central-European Workshop on Services and their Composition (ZEUS), Potsdam, Germany, February 20 - 21, 2014

Kolb, S., Wirtz G.: Towards Application Portability in Platform as a Service
Proceedings of the 8th IEEE International Symposium on Service-Oriented System Engineering (SOSE), Oxford, United Kingdom, April 7 - 10, 2014.

Lenhard J.,Harrer S., Wirtz G.: Measuring the Installability of Service Orchestrations Using the SQuaRE Method
Proceedings of the 6th IEEE International Conference on Service-Oriented Computing and Applications (SOCA'13), Kauai, Hawaii, USA, December 16 - 18, 2013.
Awarded Best Conference Paper

Harrer S., Lenhard J., Wirtz G.: Open Source versus Proprietary Software in Service-Orientation: The Case of BPEL Engines
Proceedings of the 11th International Conference on Service Oriented Computing (ICSOC '13), Berlin, Germany, December 2 - 5, 2013.

Lenhard J., Wirtz G.: Measuring the Portability of Executable Service-Oriented Processes
Proceedings of the 17th IEEE International EDOC Conference, Vancouver, Canada, September 9 - 13, 2013.
Awarded Best Student Conference Paper in Service Science

Lenhard J., Wirtz G.: Detecting Portability Issues in Model-Driven BPEL Mappings
Proceedings of the 25th International Conference on Software Engineering and Knowledge Engineering (SEKE'2013), Boston, Massachusetts, USA, Knowledge Systems Institute, June 27 - 29, 2013

Sch?nberger A., Wirtz G.: Configurable analysis of sequential multi-party choreographies.
Comput. Syst. Sci. Eng 27 (2) 2012

Sch?nberger A., Schwalb J., Wirtz G.: Interoperability and Functionality of WS-* Implementations.
Int. J. Web Service Res. 9(3): 1-22, 2012

Lenhard J., Wirtz G.: Building Orchestrations in B2Bi - The Case of BPEL 2.0 and BPMN 2.0
Proceedings of the 4th Central-European Workshop on Services and their Composition (ZEUS), Bamberg, Germany, February 23 - 24, 2012

Harrer, S., Lenhard, J.: Betsy - A BPEL Engine Test System
Bamberger Beitr?ge zur Wirtschaftsinformatik und Angewandten Informatik Nr. 90, Bamberg University, July 2012. ISSN 0937-3349

Scheithauer G., Voigt, K., Winkler, M., Bicer, V. and Strunk, A.: Integrated Service Engineering workbench: service engineering for digital ecosystems
Int. J. Electronic Business, Vol. 9, Nos. 5/6, pp.392–413, 2011

K?nig, K., Scheithauer G.: Auswahlkriterien für Prozessautomatisierungskandidaten – Eine strukturierte Literaturanalyse.
BISE-Workshop im Rahmen der MKWI 2012. Braunschweig, Germany.

Lenhard J., Sch?nberger A., Wirtz G.: Edit Distance-Based Pattern Support Assessment of Orchestration Languages
Proceedings of On the Move 2011 Confederated International Conferences: CoopIS, IS, DOA and ODBASE, Hersonissos, Crete, Greece, Oct 19 - 21, 2011, Springer, 2011

Scheithauer G.; Hardegen B.: Requirements Engineering for SOA Services with BPMN 2.0 – From Analysis to Specification.
In: Dijkman R, Hofstetter J, Koehler J, eds. 3rd Int. Workshop on the Business Process Model and Notation (BPMN). Luzern, Schweiz: Springer; 2011.

Scheithauer G., Wirtz G.; Towards a Common Conceptual Service Description Language: A Service Property Analysis for the Internet of Services
Proceedings of eChallenges e-2011 Conference, Florence, Italy, 2011.

Scheithauer G.: A Service Description Method for Service Ecosystems – Meta Models, Modeling Notations, and Model Transformations
Dissertation, University of Bamberg, 2011

Zirkel W., Wirtz G: Proactive Problem Management and Event Correlation
Proc. of the 23rd International Conference on Software Engineering and Knowledge Engineering (SEKE 2011) , 7.7. - 9.7.2011, Miami (USA)

Geiger M., Sch?nberger A., Wirtz G.: Towards Automated Conformance Checking of ebBP-ST Choreographies and Corresponding WS-BPEL Based Orchestrations
Proceedings of 2011 Conf. on Software Engineering and Knowledge Engineering (SEKE'2011), Miami, Florida, USA, Knowledge Systems Institute, 2011

Sch?nberger A., Schwalb, J. & Wirtz G.: Has WS-I’s Work Resulted in WS-* Interoperability?
Proceedings of the 9th 2011 International Conference on Web Services (ICWS 2011), Washington, D.C., USA, IEEE, 2011

Harrer, S., Sch?nberger A., Wirtz G.: A Model-Driven Approach for Monitoring ebBP BusinessTransactions
Proceedings of the 7th IEEE World Congress on Services 2011(SERVICES2011), Washington, D.C., USA, 2011
(2nd Place in the IEEE 2011 Services Cup Competition)

Lenhard J., Sch?nberger A., Wirtz G.: Streamlining Pattern Support Assessment for Service Composition Languages
Proceedings of the 3rd Central-European Workshop on Services and their Composition (ZEUS), Karlsruhe, Germany, February 21-22, 2011

Geiger M., Sch?nberger A., Wirtz G.: A Proposal for Checking the Conformance of ebBP-ST Choreographies and WS-BPEL Orchestrations
Proceedings of the 3rd Central-European Workshop on Services and their Composition (ZEUS), Karlsruhe, Germany, February 21-22, 2011

Sch?nberger A.: Do We Need a Refined Choreography Notion?
Proceedings of the 3rd Central-European Workshop on Services and their Composition (ZEUS), Karlsruhe, Germany, February 21-22, 2011

Schwalb J., Sch?nberger A., Wirtz G.: Approaching Interoperability Testing of QoS based on WS-* Standards Implementations
The 4th Workshop on Non-Functional Properties and SLA Management in Service-Oriented Computing (NFPSLAM-SOC'10), co-located with 8th IEEE European Conference on Web Services (ECOWS 2010), Ayia Napa, Cyprus, 2010

Sch?nberger A., Wirtz G.: Sequential Composition of Multi-Party Choreographies
Proceedings of the IEEE International Conference on Service-Oriented Computing and Applications (SOCA'10), Perth, Australia, 2010

Sch?nberger A., Wirtz G.: Towards Executing ebBP-Reg B2Bi Choreographies
in: Proceedings of the CEC 2010 - 12th Conference on Commerce and Enterprise Computing Shanghai, China, November 10 - 12, 2010

Bicer V., Bogert S., Winkler M.,  Scheithauer G., Voigt K., Cardoso J., and Aitenbichler E.: Modeling Services using ISE Framework: Foundations and Extensions
In ‘Modern Software Engineering Concepts and Practices: Advanced Approaches’ A. H. Dogru and V. Bicer, Eds. IGI Global, 2010, ch. 6

Sch?nberger A.; Pflügler C.; Wirtz, G,: Translating Shared State Based ebXML BPSS models to WS-BPEL
(PREPRINT VERSION in) International Journal of Business Intelligence and Data Mining - Special Issue: 11th International Conference on Information Integration and Web-Based Applications and Services in December 2009, 2010, Volume 5, Number 4

Sch?nberger A.: The CHORCH B2Bi Approach: Performing ebBP Choreographies as Distributed BPEL Orchestrations.
in: Proceedings of the 2nd IEEE International Workshop on Services Computing for B2B (SC4B2B) in conjunction with the 6th World Congress on Services (IEEE SERVICES 2010), July 5-10, 2010, Miami, FL, USA

Sch?nberger A., Wirtz G., Huemer C., Zapletal M.: A Composable, QoS-aware and Web Services-based Execution Model for ebXML BPSS BusinessTransactions.
in: Proceedings of the 4th IEEE International Workshop on Web Services and Cloud Services Testing (WS-CS-Testing 2010) in conjunction with  the 6th World Congress on Web Services ( IEEE SERVICES 2010), July 5-10, 2010, Miami, FL, USA

Hu H., Scheithauer G., Wirtz G.; ISE - Integrated Service Engineering: Applying an Architecture for Model to Model Transformations
Proc. SEKE'10, the 2010 International Conference on Software Engineering and Knowledge Engineering, 1.-3. July 2010, Redwood City, CA (USA)

Madiesh M., Wirtz G.; A Top-Down Method for Secure SOA-based B2B Processes
Proc. SEKE'10, the 2010 International Conference on Software Engineering and Knowledge Engineering, 1.-3. July 2010, Redwood City, CA (USA)

Zirkel W., Wirtz G.; A Process for Identifying Predictive Correlation Patterns in Service Management Systems
Proc.  7th International IEEE Conference on Service Systems and Service Management (ICSSSM 2010) , 28.-30.6.2010, Tokyo (Japan)

Scheithauer G., Kett H., Kaiser J., Hackner S., Hu H., Wirtz G.; Business Modeling for Service Engineering: A Case Study in the IT Outsourcing Domain
Proc. 7th Enterprise Engineering Track at ACM SAC 2010 - the 25th ACM Symposium on Applied Computing, 22.-26.3.2010, Crans-Montana, Sierre (Switzerland)

Scheithauer G.; with Kett, H.; Weiner, N.; Finzen, J.; Renner, T.; Weisbecker, A.; Klepke, S. & Augustin, S.: Integrated Service Engineering (ISE) Framework - Development of Business Services for Ecosystems in the Internet of Services
Spath, D. & Raffler, H. (Ed.), Fraunhofer Verlag, 2011

Scheithauer G., Wirtz G.; Business Modeling for Service Descriptions: A Meta Model and a UML Profile
Proc. APCCM 2010, 7th Asia-Pacific Conference on Conceptual Modelling 18.-21. January 2010, Brisbane (Australia)

Schwalb J., Sch?nberger A.: Analyzing the Interoperability of WS-Security and WS-ReliableMessaging Implementations
Bamberger Beitr?ge zur Wirtschaftsinformatik und Angewandten Informatik Nr. 87, Bamberg University, September 2010. ISSN 0937-3349

Lenhard, J.: A Pattern-based Analysis of WS-BPEL and Windows Workflow
Bamberger Beitr?ge zur Wirtschaftsinformatik und Angewandten Informatik Nr. 88, Bamberg University, March 2011. ISSN 0937-3349

Zirkel W., Wirtz G.; Proaktives Problem Management durch Eventkorrelation - ein Best Practice Ansatz
Otto-Friedrich-Universit?t Bamberg, Bamberger Beitr?ge zur Wirtschaftsinformatik und Angewandten Informatik Nr. 86, September 2010

Zirkel W., Wirtz G: A Process for Identifying Predictive Correlation Patterns in Service Management Systems.
Otto-Friedrich-Universit?t Bamberg, Bamberger Beitr?ge zur Wirtschaftsinformatik und Angewandten Informatik Nr. 84, February 2010. ISSN 0937-3349.

Scheithauer G., Voigt K., Bicer V., Heinrich M., Strunk A. and Winkler, M. Integrated Service Engineering Workbench: Service Engineering for Digital Ecosystems
in 'Proceedings of the International ACM Conference on Management of Emergent Digital Ecosystems (MEDES)', 27-30 October 2009, Lyon (France), pp. 446-449

Kett H.; Scheithauer G., Weiner N. & Weisbecker A., Integrated Service Engineering (ISE) for Service Ecosystems: An Interdisciplinary
Methodology for the Internet of Services
Proceedings of eChallenges e-2009 Conference, 21.-23. October 2009, Istanbul (Turkey)

Pflügler C., Sch?nberger A. , Wirtz G., Introducing Partner Shared States into ebBP to WS-BPEL Translations
Proc. iiWAS2009, 11th International Conference on Information Integration and Web-based Applications & Services, 14.-16. December 2009, Kuala Lumpur (Malaysia)

Scheithauer G., Voigt K., Bicer V., Heinrich M., Strunk A. & Winkler M., ISE Workbench: Integrated Service Engineering
BPM 2009 Demo Track, 8 - 10 Sept, 2009, Ulm (Germany)

Sch?nberger A.,  Wirtz G., Using Variable Communication Technologies for Realizing Business Collaborations
Proceedings of the 5th 2009 World Congress on Services (SERVICES 2009 PART II), International Workshop on Services Computing for B2B (SC4B2B), 21.-25. September 2009, Bangalore, India

Sch?nberger A., Benker T., Fritzemeier S., Geiger M., Harrer S., Kessner T., Schwalb J., Wirtz G., QoS-Enabled Business-to Business Integration Using ebBP to Ws-BPEL Translations.
Proceedings of the IEEE SCC 2009 International Conference on Services Computing, 21.-25. September 2009, Bangalore, India

Hudert S., Eymann T., Ludwig H., Wirtz G.; A Negotiation Protocol Description Language for Automated Service Level Agreement Negotiations
Proc. CEC'09, 11th IEEE Conference on Commerce and Enterprise Computing, 20.-23. July, 2009, Vienna (Austria)

Scheithauer G., Augustin S., Wirtz G.; Business Modeling for Service Engineering: Toward an integrated Procedure Model
Proc. SEKE'09, the 2009 International Conference on Software Engineering and Knowledge Engineering, 1.- 3. July 2009, Boston, MA (USA)

Scheithauer G., Business Service Description Methodology for Service  Ecosystems
Proceedings of the CAiSE-DC'09 16th Doctoral Consortium held in conjunction with CAiSE'09 Conference Amsterdam, (The Netherlands), June 9-10, 2009, Vol. 479

Scheithauer G., Augustin S., Wirtz G.; Service Value Properties for Service Ecosystems: A Reference Model and a Modeling Guideline
Proceedings of the 5th Enterprise & Organizational Modeling And Simulation Workshop (EOMAS), 2009, CEUR-WS, Vol. 458

Lenhard J., Loesing K., Wirtz G.; Performance Measurements of Tor Hidden Services in Low-Bandwidth Access Networks
Proc. International Conference on Applied Cryptography and Network Security (ACNS 09), 2.-5. June 2009, Paris-Rocquencourt (France)

Hudert S., Ludwig H., Wirtz G.; Negotiating SLAs - An approach for a generic negotiation framework for WS-Agreement
Journal of Grid Computing, Vol. 7, No 2, June 2009

Sch?nberger A., Wilms C., Wirtz G., A Requirements Analysis of Business-to-Business Integration.
Otto-Friedrich- Universit?t Bamberg, Bamberger Beitr?ge zur Wirtschaftsinformatik und Angewandten Informatik Nr. 83, December 2009. ISSN 0937-3349.

Benker T., Fritzemeier S., Geiger M., Harrer S., Kessner T., Schwalb J., Sch?nberger A., Wirtz G., QoS-Enabled B2B Integration
Otto-Friedrich-Universit?t Bamberg, Bamberger Beitr?ge zur Wirtschaftsinformatik und Angewandten Informatik Nr. 80, May 2009

Scheithauer G., Augustin S., Wirtz G.; Describing Services for Service Ecosystems
Proc. ESBE'08, the International Workshop on Enabling Service Business Ecosystems, 1. December 2008, Sydney (Australia)

Hofmeister H., Wirtz G., Supporting Service-Oriented Design with Metrics
Proceedings of the 12th International IEEE Enterprise Distributed Object Computing Conference (EDOC'2008), Munich; Germany

Hofmeister H., Wirtz G.,  Applying Service-Orientation through a Reference Architecture
Journal of Systemics, Cybernetics and Informatics , Vol. 6, no. 1, pp. 80 - 90, 2008

Kaffille S.,Wirtz G.,Engineering Autonomous Trust-Management Requirements for Software Agents: Requirements and Concepts.
4th International Conference on Systems, Computing Sciences and Software Engineering 2008 (SCSS 08), 05.-13. Dezember.

Winkler, M., Cardoso, J., Scheithauer G.; Challenges of Business Service Monitoring in the Internet of Services
in The Tenth International Conference on Information Integration and Web-based Applications Services (iiWAS'2008), Austrian Computer Society, November, 24 - 26, 2008, pp 613-616

Kett, H.; Voigt, K.; Scheithauer G. & Cardoso, J.:Service Engineering for  Business Service Ecosystems
 in Walter Ganz; Florian Kicherer & Alexander  Schletz, ed.,'Proceedings of the XVIII. International RESER Conference', 25.-26. September 2008,  Stuttgart, Germany.

Scheithauer G.: Process-oriented Requirement Modeling for the Internet of Services.
Proc. of the 1st Internet of Services Doctoral Symposium 2008 (I-ESA), Berlin, Germany,  March 25, 2008, CEUR Workshop Proceedings, ISSN 1613-0073, Download

Loesing K., Sandmann W., Wilms C., Wirtz G., Performance Measurements and Statistics of Tor Hidden Services.
Proc. 2008 Symposium on Applications and the Internet, SAINT 2008, Turku, Finland, 28 July - 1 August 2008, IEEE Computer Society Press.

Bruhn J., Wirtz G., Using contracts for self-management
Proc. SACC 2008, the 4th International Conference on Self-organization and Adaption of Computing and Communications, 22.-24. July 2008, Glasgow (UK)

Madiesh M., Wirtz G., A Top-Down Method for B2B Process Design Using SOA
Proc. SERP?08, the 2008 International Conference on Software Engineering Research & Practice, 14-17. Juli 2008, Las Vegas, Nevada (USA)

Madiesh M., Wirtz G., WS-CDL Creator: A New Tool for Modeling WS-CDL Using BPMN
Proc. SWWS?08, the 2008 International Conference on Semantic Web and Web Services, 14-17. Juli 2008, Las Vegas, Nevada (USA)

Scheithauer G., Wirtz G., Case Study Applying Business Process Management Systems
Proc. SEKE?08, the 2008 International Conference on Software Engineering and Knowledge Engineering, 1.-3. July 2008, Redwood City, CA (USA)

Sch?nberger A., Wirtz G., Taxonomy on Consistency Requirements in the Business Process Integration Context
Proc. SEKE?08, the 2008 International Conference on Software Engineering and Knowledge Engineering, 1.-3. July 2008, Redwood City, CA (USA)

Scheithauer G., Wirtz G., Toklu C., Bridging the semantic gap between process documentation and process execution
Proc. SEKE?08, the 2008 International Conference on Software Engineering and Knowledge Engineering, 1.-3. July 2008, Redwood City, CA (USA)

Bruhn J., Vogel T., Wirtz G., Autonomous Reconfiguration Procedures for EJB-based Enterprise Applications
Proc. SEKE?08, the 2008 International Conference on Software Engineering and Knowledge Engineering, 1.-3. July 2008, Redwood City, CA (USA)

Hudert S., Ludwig H., Wirtz G., Negotiating Service Levels - A generic negotiation framework for WS Agreement
Proc. SEKE?08, the 2008 International Conference on Software Engineering and Knowledge Engineering, 1.-3. July 2008, Redwood City, CA (USA)

Herr S., Laufer K., Shafaee J., Thiruvathukal G.K., Wirtz G., Combining SOA and BPM Technologies for Cross-System Process Automation
Proc. SEKE?08, the 2008 International Conference on Software Engineering and Knowledge Engineering, 1.-3. July 2008, Redwood City, CA (USA)

Bruhn J., Niklaus C., Vogel T., Wirtz G., Comprehensive support for management of Enterprise Applications
Proceedings of the 6th ACS/IEEE International Conference on Computer Systems and Applications (AICCSA 2008), Doha, Katar, pages 755-762, March 2008.

Wilms C., Improving the Tor Hidden Service Protocol Aiming at Better Performances 
Otto-Friedrich-Universit?t Bamberg, Bamberger Beitr?ge zur Wirtschaftsinformatik und Angewandten Informatik 77, November 2008

Scheithauer G., Winkler, M., : A Service Description Framework for Service Ecosystems
Otto-Friedrich-Universit?t Bamberg, Bamberger Beitr?ge zur  Wirtschaftsinformatik und Angewandten Informatik 78, Oktober 2008

Loesing K., Wirtz G., Virtual Private Hidden Services
HotPETs 2008, Technical Report, July 25, 2008, Leuven, Belgium

Scheithauer G., Wirtz G., Applying Business Process Management Systems - A Case Study 
Otto-Friedrich-Universit?t Bamberg, Bamberger Beitr?ge zur Wirtschaftsinformatik und Angewandten Informatik 76, Juni 2008 

Herrmann D., Loesing K., Pape S., Renner J., Wendolsky R., Westermann B.,  Extended Abstracts of the Second Privacy Enhancing Technology Convention (PET-CON 2008.1)
Otto-Friedrich-Universit?t Bamberg, Bamberger Beitr?ge zur Wirtschaftsinformatik und Angewandten Informatik 75, Februar 2008

Wirtz G., Hira R., Dieste O., Spanoudakis G., Visaggio G., Chang S.K., IT-Outsourcing and IT-Offshoring: Trends and Impacts on SE/KE Curricula
International Journal of Software Engineering and Knowledge Engineering (ILSEKE), Vol. 17, Issue: 5 October 2007

Wirtz G., Zhang K., Visual Interactions in Software Technology
Hawaii International Conference on System Sciences (HICSS'07). -  2007

Bruhn J., Wirtz G., mKernel: Manageable Kernel for EJB-based Systems
1st ICST/ACM International Conference on Autonomic Computing and Communication Systems (Autonomics 2007), October 2007, Rome; Italy

Simons C., Wirtz G., Modeling Context in Mobile Distributed Systems with the UML
Science Direct - Journal of Visual Languages & Computing 18 (2007) 420-439, Elsevier Ltd.

Hofmeister H., Wirtz G., A Multi-Layered Framework for Pattern-Aided Composite Application Design
Proceedings of the 11th World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI'2007), July 2007, Orlando, FL; USA

Hofmeister H., Wirtz G., Designing a Platform-Independent Use-Case for a Composite Application using a Reference Architecture
Proceedings of the 2007 International Conference on Software Engineering and Knowledge Engineering (SEKE'07), July 2007, Boston,
MA; USA

K?nig S., Kaffille S., Wirtz G., Implementing ReGreT in a Decentralized Multi-Agent Environment.
Fifth German Conference on Multiagent System Technologies (MATES 2007), 24.-26. September, Leipzig

Grünert, A., Kaffille S., Wirtz G., A Proposal for a Decentralized Multi-Agent Architecture for Virtual  Enterprises.
The Nineteenth International Conference on Software Engineering and Knowledge Engineering (SEKE 2007)

Bruhn J., Wirtz G., DyName: Enhanced Naming for EJB.
Proceedings of the 2007 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA 2007), Las Vegas, USA, Volume I, pages 17-23, June 2007

Hofmeister H., Wirtz G., Using Patterns to Design Composite Applications
Proc. EISWT-07, the 2007 International Conference on Enterprise Information Systems and Web Technologies, July 9 - 12, 2007, Orlando, FL (USA) 

Hudert S., Ludwig H., Wirtz G., A Negotiation Protocol Framework for WS-Agreement
IBM Research Report, Proc. KIVS?06, 15.ITG/GI Fachtagung Kommunikation in Verteilten Systemen, February 26 to March 2, 2007 in Bern, Switzerland. Download

Simons, C., CMP: A UML Context Modeling Profile for Mobile Distributed Systems, hicss, p. 289b,  40th Annual Hawaii International Conference on System Sciences (HICSS'07),  2007

Loesing K., R?glinger M., Wilms C., Wirtz G., Implementation of an Instant Messaging System with Focus on Protection of User Presence
Proc. COMSWARE?07; the 2nd Intern. IEEE Conf. on Communication System Software and Middleware, January 7 - 12, 2007 in Bangalore, India

Kaffille S., Loesing K., Open Chord Version 1.0.4 User?s Manual
Otto-Friedrich-Universit?t Bamberg, Bamberger Beitr?ge zur Wirtschaftsinformatik und Angewandten Informatik 74, Oktober 2007.

H. Hofmeister, Wirtz G., A Pattern Taxonomy for Business Process Integration Oriented Application Integration
Proceedings of the 2006 International Conference on Software Engineering and Knowledge Engineering (SEKE’06), July 2006.

H. Hofmeister, Wirtz G., Approaching a methodology for designing composite applications integrating legacy applications using an architectural framework
Proceedings of the EMISA 2006 Confenrence, October 17 - 18, 2006, in Hamburg, Germany

Kaffille S., Wirtz G., Modeling the static aspects of Trust for open MAS
International Conference on Intelligent Agents, Web Technologies and Internet Commerce - <link typo3 alt_main.php intern>IAWTIC06, 28 November to 1 December 2006 Sydney, Australia

Loesing K., Dorsch M., Grote M., Hildebrandt K., R?glinger M., Sehr M., Wilms C., Wirtz G., Privacy-aware Presence Management in Instant Messaging Systems
20th IEEE International Parallel and Distributed Processing Symposium, 2006.

Simons C., Wirtz G., An Architecture for Context-Aware Mobile Applications
Proc. SEA?06, the 10th IASTED International Conference on Software Engineering and Applications, November 13 - 15, 2006 in Dallas, TX (USA)

Grünert A., Hudert S., K?nig St., Kaffille S., Wirtz G., Decentralized Reputation Management for cooperating Software Agents in open Multi-Agent Systems
German conference on Multi-Agent system TEchnologieS (MATES), September 19 - 20, 2006 in Erfurt, Germany

Sch?nberger A., Wirtz G., Realising RosettaNet PIP Compositions as Web Service Orchestrations - A Case Study
The 2006 International Conference on e-Learning, e-Business, Enterprise Information Systems, e-Government, & Outsourcing (EEE ‘06), June 26-29, 2006 / Las Vegas, Nevada, USA.

Sch?nberger A., Wirtz G., Using Webservice Choreography and Orchestration Perspectives to Model and Evaluate B2B Interactions
The 2006 International Conference on Software Engineering Research & Practice (SERP’06), June 26-29, 2006 / Las Vegas, Nevada, USA. 

Squarr Ch., Bruhn J.,  Wirtz G. Adaptive Search in a Semi-structuredPeer-to-Peer System
Proceedings of the 4th ACS/IEEE International Conference on Computer Systems and Applications (AICCSA 2006), pp. 25-32, March 2006

Fischer M., Grünert A., Hudert S., K?nig St., Lenskaya K., Scheithauer G., Kaffille S., Wirtz G., Decentralized Reputation Management for cooperating Software Agents in open Multi-Agent Systems
Otto-Friedrich-Universit?t Bamberg, Bamberger Beitr?ge zur Wirtschaftsinformatik und Angewandten Informatik 67, April 2006.

Dorsch M., Grote M., Hildebrandt K., R?glinger M., Sehr M., Wilms C., Loesing K., Wirtz G., Concealing Presence Information in Instant Messaging Systems---Protocol Specification
Otto-Friedrich-Universit?t Bamberg, Bamberger Beitr?ge zur Wirtschaftsinformatik und Angewandten Informatik, Tech, Rep. 66, 2006 Download(371.7 KB, 28 pages)

Sch?nberger A., Modelling and Validating Business Collaborations: A Case Study on RosettaNet,
Otto-Friedrich-Universit?t Bamberg, Bamberger Beitr?ge zur Wirtschaftsinformatik und Angewandten Informatik 65, Mar. 2006. [Online]. Download

Loesing K., Wirtz G., An Implementation of Reliable Group Communication based on the Peer-to-Peer Network JXTA
ACS/IEEE International Conference on Computer Systems and Applications (AICCSA-05), Cairo, Egypt, p. 82, 2005. Download 

Sch?nefeld M., Security Focused Code Audit of Java Applications and Middleware
RSA 2005, San Fransisco, USA, 2005. Download 

S?llner M., Kaffille S., Wirtz G., FIPARSE - A GENERIC PARSER FOR FIPA-COMPLIANT AGENT COMMUNICATION
IASTED International Conference on Software Engineering (SE 2005), Innsbruck, 15.-17.02., 2005.

Bruhn J., Luckner, S., Müller, M., R?der, D., Squarr, C., Wewers M., Wirtz G., eFox - Filesharing with Web Services
IASTED International Conference on Software Engineering (SE 2005), Innsbruck, 15.-17.02., 2005.

Kaffille S., Loesing K., Wirtz G., Distributed Service Discovery with Guarantees in Peer-to-Peer Networks Using Distributed Hashtables
PDPTA 2005, Las Vegas, USA, June 27-30, 2005.

Bruhn J., Wirtz G., Support for Interoperability of RPC-Based Web Services - A Case Study 
Proc. 22nd IASTED International Conference on Software Engineering (SE 2004 Innsbruck (Austria) 17.-19.02.2004). pg. 548-553, 2004.

Sch?nefeld M., Seitenkanal-Angriffe auf javabasierte Softwarearchitekturen
Patrick Horster, editor, D-A-CH Security 2004, Bestandsaufnahme, 2004.

Kaffille S., Bruhn J., Wirtz G., Hierarchical Scheduling for State-Based Services
Proc. Int. Conf. on Parallel and Distributed Processing Techniques and Applications, Las Vegas, USA, pg. 179-185, 2004. Download(225.9 KB, 7 pages) 

Sch?nefeld M., Anti-Patterns in JDK Security and Refactorings
Ulrich Flegel and Michael Meier, editors, DIMVA 2004 proceedings, 2004.

Sch?nefeld M., Java Library Holes allowing Multi-Platform Denial-Of-Service
Blackhat 2003 Windows. Blackhat Consulting, February 2003., 2003.

Sch?nefeld M., Hunting Flaws in JDK
Blackhat 2003 Europe
Blackhat Consulting, May 2003., 2003.

van der Aalst W., Weske M., Wirtz G., Advanced Topics in Workflow Management: Issues, Requirements, and Solutions
Journal of Integrated Design and Process Science. Austin: Society for Design and Process Science 2003 7 (2003), Nr. 3, pg. 49-78, 2003. Download 

Sch?nefeld M., The unguarded layer switch - Java Security Antipattern
AMCIS 2003 Americas Conference on Information Systems, Tampa, 2003.

Pohlmann M., Sch?nefeld M., Evolutionaeres Vorgehensmodell in der Servicebus-Architektur der GAD
GI e.V., editor, GI Jahrestagung, pages 445 - 451, Frankfurt/Main, Germany, 2003.

Kaffille S., Wirtz G., Integrating MASIF and FIPA Standards for Agent System Interoperability 
The 7th International Conference on Software Engineering and Applications (SEA 2003), Marina del Rey, CA, USA, November 3-5. pg. 798-806, 2003.

Hillen W., Unglauben F., Wirtz G., Architectures and Modeling of Distributed Image Information Systems
6th World Multiconference on Systemics, Cybernetics and Informatics SCI 2000, pg. 911-918, Orlando (USA) Juli 2002), 2002.

Weske M., Wirtz G., Report on HICSS-25 Minitrack: Integrated Modeling of Distributed Systems and Workflow
SIGPAM Newsletter 1 (2002), Nr. 1, pg. 288, 2002.

Pohlmann M., Sch?nefeld M., An Evolutionary Integration Approach using Dynamic CORBA in a typical
Harry Sneed, editor, CSMR 2002 Conference on Software Maintenance, 2002.

Weske M., Wirtz G., Common Problems in Workflow and Distributed Software System Modeling 
Proc. IEEE/CS HICSS-34 Software Track. Mini-Symposium: Integrated Modeling of Distributed Systems and Workflow Applications; pg. 1035 (IEEE/CS Maui, Hawaii (USA) Januar 2001), 2001.

Giese H., Wirtz G., Visual Modeling of Object-oriented Distributed Systems
Journal of Visual Languages and Computing, vol. 12, pp. 183-202, Apr. 2001., 2001. Download 

Zhang K., Wirtz G., Issues in Visual Parallel and Distributed Program Development (Panel Discussion at the VL'2000 Workshop on Parallel and Distributed Programming)
J. Vis. Lang. Comput. 12(2): 217-220 (2001), 2001.

Giese H., Wirtz G., The OCoN Approach for Object-Oriented Distributed Software Systems Modeling 
Int. Journal of Computer Systems Science and Engineering 16 (2001), Nr. 3, pp. 157-172, 2001.

Weske M., Giese H., Wirtz G., The OCoN Approach to Workflow Modeling in Object-Oriented Systems
Information Systems Frontiers, vol. 3, Aug. 2001, pp. 357-376, 2001. Download

Wirtz G., Application of Petri Nets in Modelling Distributed Software Systems
Slides for an invited talk at MOCA01 in Aarhus, Denmark, Aug. 2001, 2001.

Wirtz G., Zhang K., Visual Methods for Parallel and Distributed Programming
International Journal of Visual Languages and Computing, JVLC 12 (2001), Nr. 2, pg. 123-125, 2001.

Giese H., Contract-based Component System Design
Thirty-Third Annual Hawaii International Conference on System Sciences (HICSS-33), Maui, Hawaii, USA (J. Ralph H.~Sprague, ed.), IEEE Press, Jan. 2000., 2000.

Giese H., Wirtz G., Graf J., Modellierung verteilter Systeme nach dem OCoN/UML-Ansatz
Slides (german) for a talk at 7. Fachgruppentreffen der GI-Fachgruppe 2.1.9 Objektorientierte Software-Entwicklung im Rahmen der OOP2000, München, Feb. 2000., 2000.

Giese H., Wirtz G., Early Evaluation of Design Options for Distributed Systems
Int. Symposium on Software Engineering for Parallel and Distributed Systems (PDSE'2000), pp. 150-157, Limerick, Ireland, IEEE Press, June 2000., 2000.

Giese H., Wirtz G., The OCoN Approach for Object-Oriented Distributed Software Systems Modeling
Software Engineering and Petri Nets, Workshop within the 21st International Conference on Application and Theory of Petri Nets, Aarhus, Denmark, June 26, 2000, pp. 55-74, 2000.

Wirtz G., Giese H., Graf J., Pr?zisierung des UML-Metamodells durch ein semantisches Objektmodell 
7-ter GROOM-Workshop UML – Erweiterungen (Profile) und Konzepte der Metamodellierung, 2000.

Giese H., Wirtz G., Skalierbare Beschreibung des Verhaltens verteilter Softwaresysteme
Proc. des 10. GI/ITG-Fachgespraechs Formale Beschreibungstechniken, GI-FG Kommunikation und verteilte Systeme, Luebeck, 22.-23.06, June 2000, pp. 41-50, 2000.

Wirtz G., Giese H., Weske M., Extending UML with Workflow Modeling Capabilities
7th International Conference on Cooperative Information Systems (CoopIS-2000), 6-8 September, Eilat, Israel (O. Etzion and P. Scheuermann, eds.), vol. 1901 of Lecture Notes in Computer Science, pp. 30-41, Springer Verlag, Sept. 2000., 2000.

Giese H., Wirtz G., Using UML and Object-Coordination-Nets for Workflow Specification
IEEE International Conference on Systems, Man, and Cybernetics (SMC'2000), Nashville, TN, USA, October 8-11, 2000; pp. 517-522, 2000.

Graf J., Giese H., Wirtz G., Contract-based Coordination of Distributed Object Systems
Proc. Int. Conf. on Parallel and Distributed Processing Techniques and Applications (PDPTA'99), Las Vegas, Nevada (H.~R. Arabnia, ed.), July 1999; pp. 25-31, 1999.

Graf J., Giese H., Wirtz G., Seamless Visual Object-Oriented Behavior Modeling for Distributed Software Systems
IEEE Symposium On Visual Languages, Tokyo, Japan, IEEE Press, Sept. 1999; pp. 156-163, 1999.

Wirtz G., Giese H., Graf J., Closing the Gap Between Object-Oriented Modeling of Structure and Behavior
UML'99 - The Second International Conference on The Unified Modeling Language Fort Collins, Colorado, USA (R. France and B. Rumpe, eds.), vol. 1723 of Lecture Notes in Computer Science, pp. 534--549, Springer Verlag, Oct. 1999., 1999.

Giese H., Towards a Dynamic Model for the UMl
14th Annual ACM SIGPLAN Conference on Object-Oriented Programming Systems, Languages, and Applications November 1-5, 1999, Denver, Colorado, USA. Workshop: Rigorous Modeling and Analysis with the UML: Challenges and Limitations (R. France, J.-M. Bruel, B., 1999.

Wirtz G., Giese H., Graf J., Kontraktbasierte Modellierung verteilter Softwaresysteme
Slides (german) for a talk at 5. Fachgruppentreffen der GI-Fachgruppe 2.1.9 Objektorientierte Software-Entwicklung, München, Arabella Hotel, Feb. 1998., 1998.

Jelly I., Gorton I., Croll P., Wirtz G., Engineering Distributed Object Systems: A Case of Deja Vu?
Proc. HICSS-30 Software Track, Hawaii (USA) (T. Mudge and B. Shriver, eds.), IEEE, Januar 1997; pp. 2-3, 1997.

Giese H., Wirtz G., Modular Development of Correct Meander Programs
Proc. Int. Conf. on Parallel and Distributed Processing Techniques and Applications (PDPTA'97), Las Vegas, Nevada (H.~R. Arabnia, ed.), July 1997; pp. 178-181, 1997.

Graf J., Giese H., Wirtz G., Ruling the Behavior of Distributed Software Components
Proc. Int. Conf. on Parallel and Distributed Processing Techniques and Applications (PDPTA'97), Las Vegas, Nevada (H.~R. Arabnia, ed.), July 1997; pp. 107-116, 1997.

Wirtz G., Modularization, Re-use and Testing for Parallel Message-Passing Programs
Proc. HICSS-28 Software Track, Hawaii (USA) (T. Mudge and B. Shriver, eds.), IEEE, Januar 1995; pp. 299-308, 1995.

Wirtz G., The MEANDER Language and Programming Environment
Programming and Computer Software, vol. 21, pp. 9-17, January 1995., 1995.

Kielmann T., Wirtz G., Object-Based Consistency in a Distributed Shared Memory
Proc. SIPAR Workshop on Parallel and Distributed Computing, (Biel-Bienne (Switzerland)), SIPAR, 1995; pp. 105-108, 1995.

Kielmann T., Wirtz G., Coordination Requirements for Open Distributed Systems
Parallel Computing: State-of-the-Art and Perspectives, Proc. ParCo 95, Ghent, Belgium (D'Hollander, Eric, Joubert, G. R., Tystram, D., and Peters, F. J., eds.), no. 11 in Advances in Parallel Computing, pp. 645- 648, Elsevier Science Publ., September 19, 1995.

Wirtz G., Extracting and Testing the Externally Observable Behaviour of Parallel Modules
Parallel Computing: State-of-the-Art and Perspectives, Proc. ParCo 95, Ghent, Belgium (D'Hollander, Eric, Joubert, G. R., Tystram, D., and Peters, F. J., eds.), no. 11 in Advances in Parallel Computing, pp. 391-398, Elsevier Science Publ., April 1996., 1995.

Wirtz G., Giese H., B?ckmann P., Providing CSP--like Functionality in a Helios Environment
Proc. 17th WoTUG Technical Meeting, Bristol, UK (R. Miles and A. Chalmers, eds.), pp. 175-189, IOS Press, Apr. 1994., 1994.

Wirtz G., The MEANDER Language and Programming Environment
Proc. 2nd Int. Conf. on Software for Multiprocessors and Supercomputers, SMS-TPE-94, Moscow, Russia (V.~P. Ivannikov and V.~A. Serebriakov, eds.), pp. 57-66, Inst. f. System Programming, Russian Academy of Sciences, September 1994., 1994.

Wirtz G., Giese H., B?ckmann P., Realisierung eines dynamischen CSP Programmiermodells für ANSI-C unter Helios
Proc. Transputer-Anwender-Treffen, TAT-94, Aachen, Germany (R. Flieger and R. Grebe, eds.), pp. 109-118, IOS Press, Sept. 1994., 1994.

Wirtz G., Modularization and Process Replication in a Visual Parallel Programming Language
Proc. Int. Symp. on Visual Programming, St. Louis, USA (A.~L. Ambler and T.~D. Kimura, eds.), pp. 72-79, IEEE, September 1994., 1994.

Wirtz G., Hybride Programmiersprachen als Grundlage eines Programmiersystems für Parallelrechner
Proc. 3. PASA-Workshop Parallele Systeme und Algorithmen, Bonn, Germany (K.-D. e.~a. Reinartz, ed.), pp. 133-137, GI, April 1993., 1993.

Wirtz G., A Visual Approach for Developing, Understanding and Analyzing Parallel Programs
Proc. Int. Symp. on Visual Programming, Bergen, Norway (E. Glinert, ed.), pp. 261-266, IEEE, August 1993., 1993.

Wirtz G., Developing Parallel Programs in a Graph-Based Environment, Parallel Computing: Trends and Applications
Proc. Parallel Computing 93, Grenoble, France (Joubert, G. R., Tystram, D., Peters, F. J., and Evans, D. J., eds.), pp. 345-352, Elsevier Science Publ., September 1993., 1993.

Wirtz G., GRAPH+C - eine graphische Programmiersprache für Transputer, Parallele Datenverarbeitung mit dem Transputer
Proc. TAT-92, Aachen (M. Baumann and R. Grebe, eds.), Informatik Aktuell, pp. 143-152, Springer, September 1992., 1992.

Wirtz G., Graph-Based Parallel Programming in GRAPH+C
Proc.Workshop über Parallelverarbeitung (K. Ecker and R. Hirschberg, eds.), pp. 103-116, TU Clausthal, Inst. f. Informatik, September 1992, 1992.

Fahringer T., Gerndt M., Wirtz G., An Intelligent Programming Environment for the Solution of Data Parallel Scientific Applications
Proc. Workshop über Parallelverarbeitung, Lessach (Austria) (K. Ecker and R. Hirschberg, eds.), pg. 15-37; TU Clausthal, Inst. f. Informatik, September 1991., 1991.

Wirtz G., Zima H., Spezifikation numerischer Software für parallele Superrechner
Informatik auf dem Weg zum Anwender, 20. GI-Jahrestagung (A. Reuter, ed.), no. 257/I in Informatik Fachberichte, pp. 554-568, Gesellschaft f. Informatik, Springer, Oktober 1990., 1990.

Ruppelt T., Wirtz G., Transformation of High-Level Object-Oriented Specifications into Parallel Programs
Parallel Computing, vol. 10, pp. 15-28, Jan 1989., 1989.

Meyer U., Wirtz G., A Formal Framework Handling the Description and Implementation of Multigrid Algorithms
3rd Int. Conf. on Supercomputing ACM-ICS 89 , Crete, Greece (D. Gannon and E. Houstis, eds.), pp. 7-17, ACM SIGARCH, Jun 1989., 1989.

Ruppelt T., Wirtz G., From Mathematical Specifications to Parallel Programs on a Message-Based System
2nd Int. Conf. on Supercomputing ACM-ICS 88, St. Malo, France, pp. 108-118, ACM-SIGARCH, Jun 1988., 1988.

Wirtz G., Transforming Numerical Specifications into Parallel Programs
CONPAR 88 , Manchester, UK (C.~R. Jesshope and K.~D. Reinartz, eds.), pp. 643-650, Sep 1988., 1988.

Wirtz G., Dolezol W., Schübel T., Triebel J., A Graph Grammar providing a Predicate--Transition--Net Semantics for CSP-80
Proc. Workshop on Graphtheoretic Concepts in Computer Science WG-84 (U. Pape, ed.), pp. 100--124, Trauner Verlag, Linz, Juni 1984., 1984.