14th Transformation Tool Contest

A contest for users and developers of transformation tools.

Part of the Software Technologies: Applications and Foundations (STAF) federated conferences.

Hosted as an online event on Friday 25th June, 2021, as part of STAF 2021.

Important Dates

Call for cases 26 January 2021
Expression of Interest 7 February 2021
Case Submission Deadline 31 March 2021
Solution Submission Deadline 7 June 2021 31 May 2021
Open peer review deadline 14 June 2021
Online event 25 June 2021

Change to biennial frequency

After consulting with the TTC community, we have decided to change TTC to a biennial event to allow more time for tool authors to improve their approaches between editions, and for solution authors to come up with interesting challenges for the field. We will take a break in 2022, and come back in 2023 with new tools and cases.



  • 18/02/2022: Joint 2020 and 2021 proceedings published in CEUR-WS.org.
  • 12/01/2022: Added announcement about change of frequency for TTC.
  • 25/01/2021: The website is live.
  • 25/02/2021: Confirmed as a virtual event.
  • 30/03/2021: Call for solutions is live.
  • 1/6/2021: Call for solutions is extended.
  • 7/6/2021: Solutions are available.


This event has been sponsored by CEUR Workshop Proceedings.