• GI-Fachtagung Datenbanksysteme für Business, Technologie und Web
  Magdeburg, Germany, March 11-15, 2013
• MKWI'13 - Multikonferenz der Wirtschaftsinformatik
  Track Geschäftsprozess- und Service-Management
  Leipzig, Germany, February 27 - March 1, 2013
• ICSOC'12 - 10th Int'l Conference on Service-Oriented Computing
  Shanghai, China, November 12-16, 2012
• CoopIS'12 - 20th Int. Conference on Cooperative Information Systems
  Rome, Italy, September 12-14, 2012
• BPM'12 - 10th Int'l Conference on Business Process Management (Senior PC Member)
  Tallinn, Estland, September 3-6, 2012
• ICWS'12 - 19th Int'l Conference on Web Services
  Honolulu, Hawaii, USA, June 24-29, 2012
• Cloud'12 - 5th IEEE Int'l Conference on Cloud Computing
  Honolulu, Hawaii, USA, June 24-29, 2012
• CAiSE'12 - 24th Int'l Conference on Advanced Information Systems Engineering.
  Gdansk, Poland, June 25-29, 2012
• ESOCC'12 - European Conference on Service-Oriented and Cloud Computing
  Bertinoro, Italy, September 19-21, 2012
• BPMDS'12 - 13th Int'l Working Conference o Business Process Modelin, Development and Support
  Gdansk, Poland, June 25-26, 2012
• IEEE DEST-CEE'12 - 6th IEEE Int'l Conference on Digital Ecosystem Technologies - Complex Environment Engineering
  Campione d'Italia, Italia, June 18-20, 2012
• SAC'12 - 27th ACM Symposium on Applied Computing 
  9th Enterprise Engineering Track
  Riva del Garda, Italy, March 26-30, 2010
• PoEM'1 - 5th IFIP WG8.1 Working Conference on the Practice of Enterpise Modeling
  Rostock, Germany, November 7-8, 2012
• MKWI'12 - Multikonferenz der Wirtschaftsinformatik
  Track Modellierung betrieblicher Informationssysteme
  Braunschweig, Germany, February 29 - Marc 2, 2012
• ICSOC'11 - 9th International Conference on Service Oriented Computing
  Paphos, Cyprus, December 5-8, 2011
• BPM'11 - 9th Int'l Conference on Business Process Management (Senior PC Member)
  Clermont-Ferrand, France, Aug 28 - Sep 2, 2011
• CAiSE'11 - 23rd Int'l Conference on Advanced Information Systems Engineering.
  London,England, June 20-24, 2011
• CoopIS'11 - 19th Int'l Conference on Cooperative Information Systems (PC Chair)
  Crete, Greece, October 19-21, 2011
• ICWS'11 - 9th Int'l Conference on Web Services
  Washington DC, USA, July 4-9, 2011
• CLOUD'11 - 4th IEEE Int'l Conference on Cloud Computing
  Washington, DC, USA; July 4-9, 2011
• SOCA'11 - Int' Conference on Service-Oriented Computing and Applications
  Irvine, CA, USA, December 12-14, 2011
• ECOWS'11 - 9th IEEE European Conference on Web Services
  Lugano, Switzerland, September 14-16, 2011
• BPMDS'11 - 12th Int'l Working Conference o Business Process Modeling, Development and Support
  London, England, June 20-21, 2011
• SIMPDA'11 - 1st Int'l Symposium on Data-driven Process Discovery and Analysis
  Campione d'Italia, Italy, June 29 -July 1st, 2011
• BTW'11 - 14. GI-Fachtagung Datenbanksysteme für Business, Technologie und Web
  Kaiserslautern, Germany, February / March 2011
• ECOWS'10 - 8th IEEE European Conference on Web Services
  Ayia Napra, Cyprus; December 1-3, 2010
• CoopIS'10 - 18th Int. Conference on Cooperative Information Systems
  Crete, Greece; October 27-29, 2010
• BPM'10 - 8th Int'l Conference on Business Process Management (Senior PC Member)
  Hoboken, New Jersey, New York, September 13-16, 2010
• ICWS'10 - 8th IEEE Int'l Conference on Web Services
  Miami, USA; July 5-10, 2010
• Cloud'10 - 3rd IEEE Int'l Conference on Cloud Computing
  Miami, USA; July 5-10, 2010
• CAiSE'10 - 22nd Int'l Conference on Advanced Information Systems Engineering
  Hammamet, Tunisia, June 7-11, 2010
• WWW'10 - 19th Int'l World Wide Web Conference
  Software Architecture and Infrastructure Area
  Raleigh, NC, USA; April 26-30, 2010
• SAC'10 - 25th ACM Symposium on Applied Computing
  7th Enterprise Engineering Track
  Crans-Montana, Switzerland, 22-26 March 2010
• ICDE'09 - 25th Int'l Conference on Data Engineering 
  Shanghai, March 29 - April 4, 2009.
• ICWS'09 - 7th IEEE Int'l Conference on Web Services
  Los Angeles, USA; July 6-10, 2009
• CAiSE'09 - 21st Int'l Conference on Advanced Information Systems Engineering.
  Amsterdam, The Netherlands, June 8-12, 2009
• BPM'09 - 7th Int'l Conference on Business Process Management (Senior PC Member)
  Ulm, Germany, September 8-10, 2009
• CoopIS'09 - 17th International Conference on Cooperative Information Systems
  Vilamoura, Portugal; November 1-6, 2009´
• GCC'09 - 8th Int'l Conference on Grid and Cooperative Computing
  Lanzhou, Gansu, China; August 27-29, 2009
• SAC'09 - 24th Annual ACM Symposium on Applied Computing; Track on Enterprise Information Systems
  Hawaii, USA; March 9-12, 2009
• ECOWS'09 - 7th IEEE European Conference on Web Services
  Eindhoven, The Netherlands; November 9-11, 2009
• SOCA'09 - IEEE International Conference on Service-Oriented Computing and Applications
  Taipei, Taiwan, December 14-15, 2009.
• Healthcom'09 - 11th Int'l IEEE Conference  on e-Health Networking, Applications & Services
  Sydney, Australia; December 16-18, 2009
• CLOUD-II'09 - IEEE 2009 International Conference on Cloud Computing
  Bangalore, India, September 21-25, 2009
• BTW'09 - 13. GI-Fachtagung Datenbanksysteme für Business, Technologie und Web
  Münster, Germany, March 2009 
• ICWS '08 - 6th Int'l Conference on Web Services
  Beijing, China, September 23-26, 2008
• CoopIS'08 - 16th Int'l Conference on Cooperative Information Systems.
  Monterry, Mexico, November 12-14, 2008
• GCC'08 - 7th Int'l Conference on Grid and Cooperative Computing
  Shenzhen, China, October 24-26, 2008
• BPM'08 - 6th Int’l Conference on Business Process Management (PC Chair)
  Milan, September 2-4, 2008
• CAiSE'08 - 20th Int'l Conf. on Advanced Information Systems Engineering
  Montpellier, France, June 16-20, 2008
• HEALTHCOM'08 - 10th Int'l IEEE Conference on e-Health Networking, Application and Services
  Singapore, July 7-9, 2008
• CoopIS'07 - 15th Int'l Conf. on Cooperative Information Systems
  Vilamoura, Algarve, Portugal, November 2007
• BPM'07 - 5th Int'l Conf. on Business Process Management
  Brisbane, Australia, September 2007
• ADBIS'07 - 11th East-European Conf. on Advances in Databases and Inf. Systems.
  Varna, Bulgaris, September 2007
• GCC'07 - 6th Int'l Conf. on Grid and Cooperative Computing
  Urumchi, Xinjiang, China, August 16-18, 2007
• Healthcom'07 - 9th Int'l Conference on e-Health Networking, Applications and Services
  Taipei, Taiwan, June 19-22, 2007
• BTW'07 - 12. GI-Fachtagung für Datenbanksysteme in Business, Technologie und Web
  Aachen, Germany, Mar 7-9, 2007
• ICHIT'07 - Int'l Conference on Health Information Technology
  Berlin, Germany, June 12-15, 2007
• CoopIS'06 - 14th Int'l Conf. on Cooperative Information Systems
  Montpellier, France, November 2006
• BPM'06 - 4th Int'l Conf. Business Process Management
  Vienna, Austria, September 2006
• Healthcom'06- 8th Int'l Conf. on E-health Networking, Applications and Services
  New Delhi, India, August 2006
• ICDE'06 - Indusrial Track of the 22nd Int'l Conf. on Data Engineering
  Atlanta, USA, April 2006
• AIM'06 - 11th Int'l Conf. of the Association Information & Management
  Luxembourg, June 7-9th, 2006
• HICSS-06 - 39th Hawaii Int'l Conf. on System Sciences, Track on Information Technology in Healthcare
  Kauai, Hawaii, January 2006
• CoopIS'05 - 13th Int'l Conf. on Cooperative Information Systems
  Agia Napa, Cyprus, Nov 2005
• BPM'05 - 3rd Int'l Conf. Business Process Management
  Nancy, France, Sep 2005
• BTW'05 - 11. GI-Fachtagung Datenbanksysteme für Business, Technologie und Web
  Karlsruhe, Germany, Feb / March 2005
• BPM'04 - 2nd Int'l Conf. Business Process Management
  Potsdam, June 2004
• CoopIS'04 - 12th Int'l Conf. on Cooperative Information Systems
  Agia Napa, Cyprus, October, 2004
• ALA'04 - 1st Joint Conference Architectures, Components, Applications
  Augsburg, Germany, Dec 2-3, 2004
• Informatik'04 - Workshop Program Commitee of the 23th Annual Conference of the German Computer Society (GI)
  Ulm, September 2004
• BTW'03 - 10. GI-Fachtagung Datenbanksysteme für Business, Technologie und Web
  Leipzig, Feb 26-28, 2003