Jörn Freiheit

According to our database, Jörn Freiheit authored at least 23 papers between 1998 and 2022.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2022

Agiles Vorgehen im BEMpsy-Projekt - ScrumBan im Spannungsfeld einer multidisziplinären Produkt-Entwicklung.

Brit Leissler, Juliane Siegeris, Jörn Freiheit

Proceedings of the Usability Professionals 2022, Darmstadt, Germany, September 4-7, 2022, 2022

2019

Evaluation des Arbeitsprozess-integrierten Projektstudiums (Evaluation of Project Studies Integrated into the Working Processes of Companies).

Frank Fuchs-Kittowski, Juliane Siegeris, Jörn Freiheit

Proceedings of the Tagungsband des 16. Workshops "Software Engineering im Unterricht der Hochschulen" 2019, Bremerhaven, Deutschland, 21., 2019

A Generic Approach to Schema Evolution in Live Relational Databases.

Anna O'Faoláin de Bhróithe, Fritz Heiden, Alena Schemmert, Dschialin Phan, Lillian Hung, Jörn Freiheit, Frank Fuchs-Kittowski

Proceedings of the Information Systems Architecture and Technology: Proceedings of 40th Anniversary International Conference on Information Systems Architecture and Technology - ISAT 2019, 2019

2018

A Concept for Comprehensive IT Support for Environmental and Energy Management in SMEs.

Anna O'Faoláin de Bhróithe, Frank Fuchs-Kittowski, Jörn Freiheit, Detlef Hüttemann, Stefan Voigt, Thomas Dinkel

Proceedings of the 20th International Conference on Enterprise Information Systems, 2018

2017

Arbeitsprozess-integriertes Projekt- Studium in Unternehmen.

Frank Fuchs-Kittowski, Jörn Freiheit, Juliane Siegeris

Proceedings of the Tagungsband des 15. Workshops "Software Engineering im Unterricht der Hochschulen" 2017, Hannover, Deutschland, 22., 2017

2015

Projekte in der Wirtschaft.

Juliane Siegeris, Jörn Freiheit

Proceedings of the Tagungsband des 14. Workshops "Software Engineering im Unterricht der Hochschulen" 2015, Dresden, Deutschland, 26., 2015

2014

Collaborative Environmental Data Management Framework for Microsoft Excel.

Jörn Freiheit, Ramona Goerner, Jost Becker, Frank Fuchs-Kittowski

Proceedings of the 28th International Conference on Informatics for Environmental Protection: ICT for Energy Effieciency, 2014

2012

Sicherheitseigenschaften neuerer Systeme zur E-Mail-Kommunikation zwischen Bürgern und Behörden.

Jörn Freiheit

Proceedings of the Auf dem Weg zu einer offenen, 2012

2007

Modelling of Cross-Organizational Business Processes - Current Methods and Standards.

Jörg Ziemann, Thomas Matheis, Jörn Freiheit

Enterp. Model. Inf. Syst. Archit. Int. J. Concept. Model., 2007

Modelling of Cross-Organizational Business Processes.

Jörg Ziemann, Thomas Matheis, Jörn Freiheit

Proceedings of the Enterprise Modelling and Information Systems Architectures, 2007

2006

Approximate closed-form aggregation of a fork-join structure in generalised stochastic petri nets.

Nimrod Lilith, Jonathan Billington, Jörn Freiheit

Proceedings of the 1st International Conference on Performance Evaluation Methodolgies and Tools, 2006

Using BPEL Processes defined by Event-driven Process Chains.

Carlo Simon, Jörn Freiheit, Sebastian Olbrich

Proceedings of the 5. Workshop der Gesellschaft für Informatik e.V. (GI) und Treffen ihres Arbeitskreises "Geschäftsprozessmanagement mit Ereignisgesteuerten Prozessketten (WI-EPK)", Wien, 30. November, 2006

2005

Enhanced Workflow Models as a Tool for Judicial Practitioners.

Jörn Freiheit, Susanne Münch, Hendrik Schöttle, Grozdana Sijanski, Fabrice Zangl

Proceedings of the On the Move to Meaningful Internet Systems 2005: OTM 2005 Workshops, 2005

On the semantics of EPCs: Faster calculation for EPCs with small state spaces.

Nicolas Cuntz, Jörn Freiheit, Ekkart Kindler

Proceedings of the 4. Workshop der Gesellschaft für Informatik e.V. (GI) und Treffen ihres Arbeitskreises "Geschäftsprozessmanagement mit Ereignisgesteuerten Prozessketten (WI-EPK)" Hamburg, 2005

2004

Using TimeNET to Evaluate Operational Planning Processes.

Jörn Freiheit, Jonathan Billington

Proceedings of the Business Process Management: Second International Conference, 2004

2003

New Developments in Closed-Form Computation for GSPN Aggregation.

Jörn Freiheit, Jonathan Billington

Proceedings of the Formal Methods and Software Engineering, 2003

2002

Matrizen- und zustandsraumreduzierende Verfahren zur Leistungsbewertung großer stochastischer Petrinetze.

Jörn Freiheit

PhD thesis, 2002

Modelling and evaluation of time aspects in business processes.

Juliane Dehnert, Jörn Freiheit, Armin Zimmermann

J. Oper. Res. Soc., 2002

Novel Formulae for GSPN Aggregation.

Jörn Freiheit, Armin Heindl

Proceedings of the 10th International Workshop on Modeling, 2002

2001

A Divide and Conquer Approach for the Performance Evaluation of Large Stochastic Petri Nets.

Jörn Freiheit, Armin Zimmermann

Proceedings of the 9th International Workshop on Petri Nets and Performance Models, 2001

Discrete Time Stochastic Petri Nets for the Modeling and Evaluation of Real-Time Systems.

Armin Zimmermann, Jörn Freiheit, Günter Hommel

Proceedings of the 15th International Parallel & Distributed Processing Symposium (IPDPS-01), 2001

2000

Petri Net Modelling and Performability Evaluation with TimeNET 3.0.

Armin Zimmermann, Jörn Freiheit, Reinhard German, Günter Hommel

Proceedings of the Computer Performance Evaluation: Modelling Techniques and Tools, 2000

1998

TimeNET_MS-an integrated modeling and performance evaluation tool for manufacturing systems.

Armin Zimmermann, Jörn Freiheit

Proceedings of the IEEE International Conference on Systems, Man and Cybernetics, 1998