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Information Systems and Applied Computer Sciences

Distributed Systems Group

  1.  University of bamberg
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  5. Computer Science
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Dr. rer. nat. J?rg Lenhard

PGP-Key: A14FF58D
 

Blog - GitHub - Google Scholar - Researchgate - LinkedIn Profile - Stackoverflow Profile

Book Java by Comparison: Become a Java Craftsman in 70 Examples

Curriculum Vitae

since 15.04.2011Research assistant at the Distributed Systems Group of the University of Bamberg
21.01.2016Ph.D. (Dr. rer. nat.) in Computer Science at the Faculty of Information Systems and Applied Computer Science of the University of Bamberg. Thesis topic: "Portability of Process-Aware and Service-Oriented Software: Evidence and Metrics"
22.09.2012-20.10.2012Guest lecturer at the Software Engineering Research Lab, chaired by Claes Wohlin, of the Blekinge Institute of Technology in Karlskrona, Sweden.
31.03.2011Master of Science in Information Systems with distinction. Thesis topic: “A Pattern-based Analysis of WS-BPEL and Windows Workflow
01.04.2009-31.03.2011Master studies in Information Systems at the University of Bamberg
31.03.2009Bachelor of Science in Information Systems. Thesis topic: "Anonymous access to public services in the Internet - Analysis of Tor Hidden Services in low bandwidth networks."
14.08.2007-15.01.2008Term abroad at the University of Sk?vde, Sweden
01.10.2005-31.03.2009Bachelor studies in Information Systems at the University of Bamberg

Awards

Student Travel Award, 8th IEEE International Conference on Cloud Computing, New York, USA, June / July 2015

Best Presentation Award, Central European Workshop on Services and their Composition, Potsdam, Germany, February 2014

Best Paper Award, IEEE International Conference on Service Oriented Computing & Applications, Kauai, Hawaii, USA, December 2013

Best Student Conference Paper in Service Science, IEEE International EDOC Conference, Vancouver, Canada, September 2013

2018

Publications

Harrer, S., Lenhard, J., Dietz, L. W.: Java by Comparison: Become a Java Craftsman in 70 Examples
Pragmatic Bookshelf, 1. Ausgabe, April 2018, ISBN 978-1-68050-287-9

Dietz, L. W., Manner, J., Harrer, S., Lenhard, J.: Teaching Clean Code
Proceedings of the 1st Workshop on Innovative Software Engineering Education, Ulm, Germany, March 05 - March 09, 2018.

2017

Ferme, V.; Lenhard, J.; Harrer, S.; Geiger, M.; Pautasso, C.:  Workflow Management Systems Benchmarking: Unfulfilled Expectations and Lessons Learned
Proceedings of the 39th International Conference on Software Engineering (ICSE), Poster Track, Buenos Aires, Argentina, May 20-28, 2017

Geiger, M.; Harrer, S.; Lenhard, J., Wirtz, G.: BPMN 2.0: The state of support and implementation
Future Generation Computer Systems; 2017

2016

Geiger, M.; Harrer, S.; Lenhard, J.; Wirtz G.: On the Evolution of BPMN 2.0 Support and Implementation
Proceedings of the 10th IEEE International Symposium on Service-Oriented System Engineering (SOSE), Oxford, UK, March 29 – April 1, 2016

Geiger, M.; Harrer, S.; Lenhard, J.: Process Engine Benchmarking with Betsy - Current Status and Future Directions
Proceedings of the 8th Central-European Workshop on Services and their Composition (ZEUS), Vienna, Austria, January 27-28, 2016

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.

Lenhard, J.; Geiger, M.; Wirtz, G.: On the Measurement of Design-Time Adaptability for Process-Based Systems
Proceedings of the 9 th IEEE International Symposium on Service-Oriented System Engineering (SOSE), San Francisco Bay, CA, USA, March 30 – April 3 2015. IEEE.

Geiger, M.; Harrer, S.; Lenhard, J.; Casar, M.; Vorndran A.; Wirtz, G.: BPMN Conformance in Open Source Engines
Proceedings of the 9 th IEEE International Symposium on Service-Oriented System Engineering (SOSE), San Francisco Bay, CA, USA, March 30 – April 3 2015. IEEE.

2014

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

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

2013

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

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

Technical Reports

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

2011

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

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

Technical Reports

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

2009

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)

Scientific Service

Organizing Committee

  • 1st International Workshop on Performance and Conformance of Workflow Engines (PEaCE 2016), Workshop Chair
  • 9th International IEEE Symposium on Service-Oriented System Engineering (SOSE 2015), Workshop Chair
  • 8th IEEE International Conference on Cloud Computing (CLOUD 2015), Student Volunteer

Program Committee

  • International Workshop on Interorganizational Processes (IOPs 2016), co-located with IEEE EDOC 2016
  • 8th ZEUS Workshop (ZEUS 2016)
  • 7th Central European Workshop on Services and their Composition (ZEUS 2015)

Reviewing

  • 2015 IEEE International Conference on Data Science and Advanced Analytics (DSAA'2015)
  • IET Information Security
  • 7th International Conference on Subject-Oriented Business Process Management (S-BPM ONE 2015)
  • 26th International Conference on Software Engineering and Knowledge Engineering (SEKE 2014)
  • 19th International Conference on Engineering of Complex Computer Systems (ICECCS 2014)
  • 25th International Conference on Software Engineering and Knowledge Engineering (SEKE 2013)
  • 15th IEEE International Conference on Business Informatics (CBI 2013)
  • Information Systems Journal
  • 24th International Conference on Software Engineering and Knowledge Engineering (SEKE 2012)
  • 27th Symposium on Applied Computing, Enterprise Engineering Track (SAC-EE 2012)
  • 6th International Symposium on Service-Oriented System Engineering (SOSE 2011)