• PC Chair (with Mor Peleg and Richard Lernz)
  7th Int’l Workshop on Process-Oriented Information Systems in Healthcare (ProHealth’14)
  Haifa, Israel; 8 September 2014
• General Chair
  18th IEEE International Enterprise Distributed Object Computing Conference (EDOC 2014)
  Ulm, Gernany; 1-5 September 2014
• PC Chair (with Félix García and Victoria Torres)
  2nd Int'l Workshop on Variability Support in Information Systems (VarIS 2014)
  Thessaliniki, Greece; 16 June 2014
• PC Chair (with Hamid R. Motahari Nezhad)
  17th IEEE International Enterprise Distributed Object Computing Conference (EDOC 2013)
  Vancouver, Canada; 9-13 September 2013
• PC Chair (with Reinhard Jung)
  5th International Workshop on Enterprise Modelling and Information Systems Architectures (EMISA’13)
  St. Gallen, Switzerland; 5-6 September 2013
• PC Chair (with Félix García and Victoria Torres)
  1st Int'l Workshop on Variability Support in Information Systems (VarIS)
  Valencia, Spain; 17-18 June 2013
• Doctoral Consortium Chair (with Karsten Wolf and Boualem Benatallah)
  10th Int’l Conference on Business Process Management (BPM'12)
  Talinn, Estland; 2 September 2012 
• PC Chair (with Mor Peleg, Silvia Miksch and ohers)
  5th Int'l Workshop on Process-oriented Information Systems in Healthcare (ProHealth'12)
  Tallinn, Estland, 3 September, 2012
• PC Chair (with Akhil Kumar and Qing Li)
  19th Int'l Conference on Cooperative Information Systems (CoopIS'11)
  Crete, Greece, October 19-21, 2011
• General Chair (with Peter Dadam)
  7th Int’l Conference on Business Process Management (BPM'09)
  Ulm, Germany; September 7-10, 2009
• PC Chair (with Marlon Dumas)
  6th Int’l Conference on Business Process Management (BPM'08)
  Milan, Italy, September 2-4, 2008

       Chairmanships for Past Conferences and Workshops

• 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

Memberships in Program Committees of Past Conferences

• BPMN'12 - 4th Int'l Workshop on the Business Process Model and Notation
  Vienna, Austria, 12-13 September, 2012
• EMISA'12 - Der Mensch im Zentrum der Modellierug
  Vienna, Austria, 12-13 September, 2012
• ProHealth'12 - 5th Int'l Workshop on Process-oriented Information Systems in Healthcare (PC Chair)
  Workshop held in conjunction with BPM'12 conference
  Tallinn, Estland, 3 September 2012
• BPI'12 - 8th Int'l Workshop on Business Process Intelligence
  Workshop held in conjunction with BPM'12 conference
  Tallinn, Estland, 3 September 2012
• PMC'12 - 2nd Int'l Workshop on Process Model Collections
  Workshop held in conjunction with BPM'12 conference
  Tallinn, Estland, 3 September 2012
• ER-BPM'12 - 3rd Int'l Workshop on Empirical Research in Business Process Management
  Workshop held in conjunction with BPM'12 conference
  Tallinn, Estland, 3 September 2012
• rBPM'12 - 3rd Int'l Workshop on Reuse in Business Process Management
  Workshop held in conjunction with BPM'12 conference
  Tallinn, Estland, 3 September 2012
• TAProViz'12 - 1st Int'l Workshop on Theory and Applications of Process Visualization
  Workshop held in conjunction with BPM'12 conference
  Tallinn, Estland, 3 September 2012
• DAB'12 - 1st Int'l Workshop on Data- & Artifact-centric BPM
  Workshop held in conjunction with BPM'12 conference
  Tallinn, Estland, 3 September 2012
• HC-PAIS'12 - 1st Int'l Workshop on Human-Centric Process-Aware Information Systems
  Workshop held in conjunction with CAiSE'12 conference
  Gdansk, Poland, 26 June 2012
• EVL-BP'12 - Int'l Workshop on Evolutionary Business Processes 
  Workshop held in conjunction with CAiSE'12 conference
  Beijing, China, 10 September 2012
• KiBP'12 - 1st Int'l Workshop on Knowledge-intensive Business Processes
  Workshop held in conjunction with the KR'12 conference
  Rome, Italy, 15 June 2012

Memberships in Program Committees of Past Workshops

• PC Chair (with Akhil Kumar and Qing Li)
  19th Int'l Conference on Cooperative Information Systems (CoopIS'11)
  Crete, Greece, October 19-21, 2011
• General Chair (with Peter Dadam)
  7th Int'l Conference on Business Process Management (BPM'09)
  Ulm, Germany; September 7-10, 2009
• PC Chair (with Marlon Dumas)
  6th Int’l Conference on Business Process Management (BPM'08)
  Milan, Italy, September 2-4, 2008 

• PC Chair (with Mor Peleg and Richard Lenz)
  4th Int'l Workshop on Process-oriented Information Systems in Healthcare (ProHealth'11)
  (held in conjunction with BPM'11 conference),
  Clermont-Ferrand, France, August 29, 2011
• PC Chair (with Mor Peleg and Richard Lenz)
  2nd Int'l Workshop on Process-oriented Information Systems in Healthcare (ProHealth'07)
  (held in conjunction with BPM'08 conference),
  Milan, Italy, September 1, 2008
• PC Chair (with Klaus Turowski)
  2nd Int’l Workshop on Enterprise Modelling and Information Systems Architectures - Concepts and Applications (EMISA'07)
  St. Goar, Germany, October 8-9, 2007
• PC Chair (with Mor Peleg and Richard Lenz)
  1st Int'l Workshop on Process-oriented Information Systems in Healthcare (ProHealth'07)
  (held in conjunction with BPM'07 conference),
  Brisbane, Australia; September 24, 2008
• PC Chair (with Barbara Weber and Rik Eshuis)
  2nd IEEE Int'l Workshop on Agile Cooperative Process-Aware Information Systems (ProGility'07)
  (held in conjunction with the WETICE'07 workshops)
  Paris, France; June 18-20, 2007
• PC Chair (with Shazia Sadiq and Karsten Schulz)
  2nd Int'l Workshop on Technoloies for Collaborative Business Process Management (TCoB'07)
  (held in conjunction with the ICEIS'07 conference)
  Funchal, Portugal, June 2007
• PC Chair (with Barbara Weber and Jan Mendling)
  1st IEEE Workshop on Flexibility in Process-aware Information Systems (ProFlex'06)
  (held in conunction with WETICE'06 workshops)
  Manchester, UK; June 2006
• PC Chair (with Shazia Sadiq and Karsten Schulz)
  1st Int'l Workshop on Technologies for Collaborative Business Process Management (TCoB'06)
  (held in conjunction with ICEIS'06 conference)
  Paphos, Cyprus; May 2006
• PC Chair (with W. Hasselbring and R. Lenz)
  2nd GI/GMDS Workshop on Enterprise Application Integration (EAI'05)
  Marburg, Germany; June 30 - July 1, 2005
• PC Chair (with W. Hasselbring)
  1st GI Workshop on Enterprise Application Integration (EAI'04)
  Oldenburg, Germany; February 2004
• PC Chair (with Mathias Weske)
  GI Workshop Geschäftsprozessorientierte Architekturen (GPA'04)
  Ulm, Germany, September 2004
• PC Chair (with Peter Dadam)
  GI Workshop on Enterprise-wide and Cross-Enterprise Workflow Management
  (held in conjunction with Informatik'99)
  Paderborn, Germany, October 1999

• 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

• EMISA'11 - 4th Int'l Workshop on Enterprise Modelling and Information Systems Architectures
  Hamburg, Germany, September 22-23, 2011
• BPMN'11 - 3rd Int'l Workshop on the Business Process Model and Notation
  Lucerne, Switzerland, 21-22 September, 2011
• ProHealth'11 - 4th Int'l Workshop on Process-oriented Information Systems in Healthcare (PC Chair)
  Workshop held in conjunction with BPM'11 conference,
  Clermont-Ferrand, France, August 29, 2011
• BPI'11 - 7th Int'l Workshop on Business Process Intelligence
  Workshop held in conjunction with BPM'11 conference
  Clermont-Ferrand, France, August 29, 2011
• PMC'11 - 1st Int'l Workshop on Process Model Collections 
  Workshop held in conjunction with BPM'11 conference
  Clermont-Ferrand, France, August 29, 2011
• ER-BPM'11 - 2nd Int'l Workshop on Empirical Research in Business Process Management
  Workshop held in conjunction with BPM'11 conference
  Clermont-Ferrand, France, August 29, 2011
• CAiSE'11 Forum - Forum of the 23rd Int'l Conference on Advanced Information Systems Engineering (Programme Board Member)
  London, England, June 20-24, 2011
• EVL-BP'11 - 4th Int'l Workshop on Evolutionary Business Processes
  Workshop held in conjunction with EDOC'11 conference
  Helsinki, Finland, August 28-29, 2011
• HamIS'11 - Int'l Workshop on Health Ambient Information Systems
  Gramado, Brazil, 17 May 2011
• BPMN'10 - 2nd Int'l Workshop on the Business Process Model and Notation
  Potsdam, Germany, October 13-14, 2010
• BPI'10 - 6th Int'l Workshop on Business Process Intelligence
  Workshop held in conjunction with BPM'10 conference
  Hoboken, New Jersey, USA, 13 Septemer 2010
• IW-PL'10 - 1st Int'l Workshop "Process in the Large"
  Workshop held in conjunction with BPM'10 conference
  Hoboken, New Jersey, USA, 13 Septemer 2010
• rBPM'10 - 1st Int'l Workshop on Reuse in Business Process Management
  Workshop held in conjunction with BPM'10 conference
  Hoboken, New Jersey, USA, 13 Septemer 2010
• WGBP'10 - Int'l Workshop on Goal-based Business Process Engineering
  Workshop held in conjunction with EDOC'10 conference
  Vitoria, ES, Brazil, Otober 2010
• DDBP'10 - 3rd Int'l Workshop on Dynamic and Declarative Business Processes
  Workshop held in conjunction with EDOC'10 conference
  Vitoria, ES, Brazil, Otober 2010
• BPMDS'10 - 11th Int'l Workshop on Business Process Modeling, Development and Support
  Workshop held in conjunction with CAiSE'10 conference
  Hammamet, Tunisia, 7-8 June 2010
• ER-POIS - 1st Int'l Workshop on Empirical Research in Process-Oriented Information Systems
  Workshop held in conjunction with CAiSE'10 conference
  Hammamet, Tunisia, 7-8 June 2010
• TCoB'10 - 5th Int'l Workshop on Technologies for Context-Aware Business Process Management
  Workshop held in conjunction with ICEIS'10 conference
  Funchal, Portugal, 8 June 2010
• SOC-LOG'10 - 2nd Int'l Workshop on Service-Oriented Computing in Logistics
  Workshop held in conjunction with ICSOC'10 conference
  San Francisco, CA, USA, December 2010
• BPMDS'09 - 10th Int'l Workshop on Business Process Modeling, Development and Support
  CAiSE'09 Workshop, Amsterdam, The Netherlands; June 8-9, 2009
• EMISA'09 - 3rd Int'l Workshop on Enterprise Modelling and Information Systems Architectures
  GI SIG EMISA Workshop, Ulm, Germany; September 10-11, 2009
• DDBP'09 - 2nd Int'l  Workshop on Dynamic and Declarative Business Processes
  Auckland, New Zealand, September 2009
• edBPM'09 - 2nd Int'l Workshop on Event-Driven Business Process Management
  Workshop held in conjunction with BPM'09 conference,
  Ulm, Germany, 7 September 2009
• ER-BPM'09 - 1st Int'l Workshop on Empirical Research in Business Process Management
  Workshop held in conjunction with BPM'09 conference,
  Ulm, Germany, 7 September 2009
• CBP'09 - 3rd International Workshop on Collaborative Business Processes
  Workshop held in conjunction with BPM'09 conference,
  Ulm, Germany, 7 September 2009
• BPI'09 - 5th Int'l Workshop on Business Process Intelligence
  Workshop held in conjunction with BPM'09 conference,
  Ulm, Germany, 7 September 2009
• ProHealth'09 - 3rd Int'l Workshop on Process-oriented Information Systems in Healthcare
  Workshop held in conjunction with BPM'09 conference,
  Ulm, Germany, 7 September 2009
• M4BPS'09 - IEEE Int'l Workshop on Management for Business Processes and Services
  CEC'09 Workshop, Vienna, Austria;  July 20, 2009
• TCoB'09 - 4th Int'l Workshop on Technologies for Context-aware Business Process Management
  ICEIS'09 Workshop, Milan, Italy; May 6-7, 2009
• Progility'09 - 4th IEEE Workshop on Agile Cooperative Process-aware Information Systems
  WETICE'09 Workshop, Groningen, The Netherlands; June 29 - July1, 2009
• EHST'09 - 3rd Int'l Workshop on e-Health Services and Technologies
  Sofia, Bulgaria; July 28, 2009
• MSI'09 - Workshop on Model-driven Development, Service-oriented Architecture, IT-Management
  Oldenburg, Germany; October 6-7, 2009
• I-WEST'09 - 3rd Int'l Workshop on Enterprise Systems and Technology
  Sofia, Bulgaria; July 29-30, 2009
• BPD'08 - 4th International Workshop on Business Process Design
  Workshop held in conjunction with BPM'08 conference,
  Milan, Italy, 1 September 2008
• BPI'08 - 4th Int'l Workshop on Business Process Intelligence
  Workshop held in conjunction with BPM'08 conference,
  Milan, Italy, 1 September 2008
• MDE4BPM - 1st International Workshop on Model-Driven Engineering for Business Process Management
  Workshop held in conjunction with BPM'08 conference,
  Milan, Italy, 1 September 2008
• CBP'08 - 2nd Int'l Workshop on Collaborative Processes
  Workshop held in conjunction with BPM'08 conference,
  Milan, Italy, 1 September 2008
• PM4HDPS - 1st International Workshop on Process Management for Highly Dynamic and  Pervasive Scenarios
  Workshop held in conjunction with BPM'08 conference,
  Milan, Italy, 1 September 2008
• ProHealth'08 - 2nd Int'l Workshop on Process-oriented information systems in Healthcare (PC Chair)
  Workshop held in conjunction with BPM'08 conference,
  Milan, Italy, 1 September 2008
• DDBP'08 - First International Workshop on Dynamic and Declarative Business Processes
  Munich, Germany, September 2008
• ProGility'08 - 3rd IEEE Workshop on Agile Cooperative Information Systems
  WETICE'08 Workshop, Rome, Italy, France, June 23-25, 2008
• EHST'08 - 2nd Int'l Workshop on e-Health Services and Technologies 
  Porto, Portugal; July 7, 2008
• TCoB'08 - 3rd Int'l Workshop on Technologies for Context-Aware Business Process Management
  ICEIS'08 Workshop, Barcelona, Spain, 13 June 2008
• MSI'08 - 2nd Workshop on MDD, SOA and IT Management
  OFFIS, Oldenburg, Germany; September 24, 2008
• I-WEST'08 - 2nd Int'l Workshop on Enterprise Systems and Technology
  Enschede, The Netherlands; May 23, 2008
• XML4BPM'08 - 4th Workshop on XML Integration and Transformation for Business Process Management
  Munich, Germany, February 2008
• EMISA'07 - 2nd Int'l Workshop Enterprise Modeling and Information System Architectures  (PC Chair)
  GI SIG EMISA Workshop, St. Goar, Germany, October 8-9, 2007 
• ProHealth'07 - 1st Int'l Workshop on Process-oriented Information Systems in Healthcare  (PC Chair) 
  Workshop held in conjunction with BPM'07 conference,
  Brisbane, Australia, September 2007
• BPI'07 - 3rd Int'l Workshop on Business Process Intelligence
  Workshop held in conjunction with BPM'07 conference,
  Brisbane, Australia, September 2007
• BPD'07 - 3rd Int'l Workshop on Business Process Design
  Workshop held in conjunction with BPM'07 conference,
  Brisbane, Australia, September 2007
• CBP'07 - 1st Int'l Workshop on Collaborative Business Processes
  Workshop held in conjunction with BPM'07 conference,
  Brisbane, Australia, September 2007
• SWSP'07 - 4th Int'l Workshop on Semantic Web for Services and Processes
  ICWS'07 Workshop, Salt Lake City, USA, July 9-13, 2007
• ProGility'07 - 2nd IEEE Int'l Workshop on Agile Cooperative Process-Aware Information Systems  (PC Chair)
  WETICE'07 Workshop; Paris, June 18-20, 2007
• TCoB'07 - 2nd Int'l Workshop on Technologies for Collaborative Business Process Management (PC Chair)
  ICEIS'07 Workshop, Funchal, Portugal, June 2007
• BPMDS'07 - 8th Int'l Workshop on Business Process Modeling, Development, and Support
  CAiSE'07 Workshop, Trondheim, Norway, June 2007
• MSI'07 - Workshop MDD, SOA, and IT Management
  Oldenburg, Germany, April 2007
• EAI'06 - 3rd GI Workshop on Enterprise Application Integration
  Dortmund, Germany, December 2006
• EMISA'06 - Workshop Methoden, Konzepte und Technologien für die Entwicklung von dienstebasierten Informationssystemen
  GI SIG EMISA Workshop, Hamburg, Germany, October 2006
• BPD'06 - 2nd Int'l Workshop on Business Process Design
  Workshop held in conjunction with BPM'06 conference,
  Vienna, Austria, September 2006
• DPM'06 - 1st Int'l Workshop on Dynamic Process Management  (PC Chair)
  Workshop held in conjunction with BPM'06 conference,
  Vienna, Austria, September 2006
• BPOKI'06 - Special Track on Business Process Oriented Knowledge Infrastructures at I-Know'06
  Graz, Austria, September 2006
• ProFlex'06  - 1st IEEE Workshop on Flexibility in Process-aware Information Systems  (PC Chair)
  WETICE'06 Workshop, Manchester, UK, June 2006
• TCoB'06 - 1st Int'l Workshop on Technologies for Collaborative Business Process Management (PC Chair)
  ICEIS'06 Workshop, Paphos, Cyprus, May 2006
• Workshop on Information Integration in Healthcare Applications
  EDBT'06 Workshop, Munich, Germany, March 2006
• XML4BPM'06 - 3rd Workshop XML Integration and Transformation for Business Process Management
  Passau, Germany, Feb 2006
• ISOBPI'05 - Int'l Workshop on Service-Oriented Business Processes Integration
  ICSOC'05 Workshop, Amsterdam, The Netherlands, December 2005.
• DWP'05 - Int'l Workshop on Dynamic Web Processes
  ICSOC'05 Workshop, Amsterdam, The Netherlands, December 2005.
• TES'05 - 6th VLDB Workshop on Technologies for E-Services
  VLDB'06 Workshop, Trondheim, Norway, Sep 2-3, 2005
• EMISA'05 - 1st Int. Workshop Enterprise Modeling and Information System Architectures
  ER'05 Workshop, Klagenfurt, Austria, Oct 24-25, 2005
• BPS'05 - Int'l Workshop on Business Processes and Services
  BPM'05 Workshop, Nancy, France, Sep 5, 2005
• EAI'05 - 2nd GI-/GMDS Workshop Enterprise Application Integration (PC Chair)
  Marburg, Germany, June, 2005
• XML4BPM'05 - 2nd GI Workshop on XML for Business Process Management
  BTW'05 Workshop, Karlsruhe, Germany, Febraury 2005.
• GPA'04 - Workshop "Geschäftsprozessorientierte Architekturen"  (PC Chair)
  Informatik'04 Workshop, Ulm, Germany, September 2004
• EMISA'04 - Information Systems in E-Business and E-Government
  GI SIG EMISA Workshop, Luxemburg, Oct 6-8, 2004
• Informatik'04 - Workshop Program Commitee of the 23th Annual Conference of the German Computer Society (GI)
  Ulm, September 2004
• EAI'04 - GI-Workshop Enterprise Application Integration (PC Chair)
  Oldenburg, Germany, February 2004
• WES’03 - Int’l Workshop on "Web Services, e-Business, and the Semantic Web
  CAiSE'03 Workshop, Velden, Austria, June 16-17, 2003
• EAI'03 - Spring Conf. Enterprise Architecture und Enterprise Application Integration
  St. Gallen, May 28, 2003
• GI Workshop on Enterprise-wide and Cross-Enterprise Workflow Management (PC Chair)
  Informatik'99 Workshop, Paderborn, Germany, October 1999