HoWCoM 2021: 1st Hands-on Workshop on Collaborative Modeling 2021

October 10, 2021-October 12, 2021 in Online, Virtual

Call for Papers

1st International Hands-on Workshop on Collaborative Modeling 2021 (HoWCoM)

10 - 12 October 2021 – Virtual Edition


Co-located with the MODELS 2021 conference

HoWCoM aims to bring together developers of collaborative MDE tools, and the extended modeling community, to discuss and enable the evaluation of these tools by hands-on experimentation. The results of the evaluations will be used to assess the features, maturity, and challenges of the domain.


The topics of interest include, but are not limited to:

  • Real-time synchronous means of collaboration
  • Asynchronous means of collaboration
  • (In)consistency management
  • Advanced conflict visualization and resolution techniques
  • Data-level collaborative techniques
  • Domain-specific collaborative solutions
  • Informal means of collaboration
  • Semantic techniques (versioning, visualization, etc.)
  • Human factors in collaboration


We invite the following three types of submissions.

  • CASE PAPERS (up to 10 pages) elaborating on a collaborative case, and demonstrating its solution via a tool of choice. The description of the case should include a general challenge, and an example scenario of that challenge. Authors of the accepted papers will be invited to give a talk during the morning session, and their tools will be used during the afternoon session. The submitted cases will be used by the organizers to construct the modeling tasks of the afternoon session. Please refer to the specific instructions for case papers on the official website.

  • VISION PAPERS (5 pages) presenting innovative ideas. Authors of the accepted vision papers will be invited to give a regular talk.

  • EXTENDED ABSTRACTS (1 page) presenting innovative ideas or position statements. Authors of the accepted extended abstracts will be invited for a lightning talk.

All submitted papers must adhere to the IEEE Conference format, and submitted electronically through EasyChair. All submissions will be reviewed by at least 3 members of the program committee. Authors of case papers should expect a particularly detailed feedback to allow them to leverage the opportunity the workshop provides to the fullest extent. Case papers and vision papers will be published in the MODELS Companion proceedings. Extended abstracts will not be published. All accepted papers will be available on the workshop website prior to the start of the workshop. To be published in the proceedings, at least one author of an accepted paper must present their work at the workshop. Additionally, authors of accepted case papers commit to conduct a hands-on session for their tool during the afternoon session.


  • July 16, 2021 - Abstract submission deadline.
  • July 23, 2021 - Paper submission deadline.
  • August 21, 2021 - Notification of acceptance.
  • August 28, 2021 - Final papers submission deadline.
  • September 6–10, 2021 [Case papers only] - Technical preparations.
  • September 30, 2021 [Case papers only] - Final case descriptions.
  • October 1, 2021 - Final program announced.
  • October 10-12, 2021 - Workshop.


  • Sanaa Alwidian, Ontario Tech University, Canada
  • Kousar Aslam, VU Amsterdam, Netherlands
  • Jordi Cabot, ICREA / Open University of Catalonia, Spain
  • Juan de Lara, Universidad Autonoma de Madrid, Spain
  • Davide Di Ruscio, Università degli Studi dell’Aquila, Italy
  • Steven Kelly, MetaCase, Finland
  • Sahar Kokaly, General Motors / McMaster University, Canada
  • Ivano Malavolta, VU Amsterdam, Netherlands
  • Gunter Mussbacher, McGill University, Canada
  • Blazho Nastov, Axellience, France
  • Ahsan Qamar, Ford Motor Company, USA
  • Alexander Raschke, Ulm University, Germany
  • Taylor Riche, National Instruments, USA
  • Vasco Sousa, University of Montreal, Canada
  • André van der Hoek, University of California Irvine, USA
  • Manuel Wimmer, Johannes Kepler University Linz, Austria


  • Istvan David, University of Montreal, Canada
  • Eugene Syriani, University of Montreal, Canada
  • Antonio Garcia-Dominguez, Aston University, U