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https://ceur-ws.org/Vol-3089/xpreface.pdf
The aim of the Transformation Tool Contest (TTC) series is to compare the expressiveness,
the usability, and the performance of transformation tools along a number of selected case
studies. A deeper understanding of the relative merits of different tool features will help to
further improve transformation tools and to indicate open problems.
These proceedings gather the cases and solutions developed by the contest participants of
the thirteenth and fourteenth editions. Both editions were part of the Software Technologies:
Applications and Foundations (STAF) federation of conferences during 2020 and 2021. Teams
from the major international players in transformation tool development participated in an
online setting owing to the pandemic. Thus, these are the pandemic proceedings of the TTC
series.
In order to facilitate the comparison of transformation tools, our steering committee selected
three challenging cases via single blind reviews for which there were together ten solutions. The
cases involved: round-trip migration of object-oriented data model instances for the evolution
of web-based services; incremental recompilation of laboratory worflows in order to repurpose
laboratory instruments to cope with sudden surges of demand, like the need for testing capacity
at the start of the pandemic; a compilation process from OCL queries to PSQL, exploring the
expressivity power of transformation tools.
These proceedings comprise descriptions of these case studies and of all of the accepted
solutions. In addition to the solution descriptions contained in these proceedings, the implemen-
tation of each solution (tool, project files, documentation) is made available in public version
control repositories.
All cases were reviewed by the steering committee, judging the significance of the problem
statement, and appropriateness of the evaluation methodology. Both TTC 2020 and TTC 2021
involved open (i.e., non anonymous) peer reviews for case solutions in a first round. The purpose
of this round of reviews was for the participants to gain as much insight into the competitors’
solutions as possible and also to identify potential problems. At the workshop, the solutions
were presented. The expert audience judged the solutions along a number of case-specific
categories, and prizes were awarded to the highest scoring solutions in each category. Finally,
the conceptual contribution of each solution was written in a paper taking into account the
insights gained at the workshop. The articles appearing in these post-proceedings were selected
by our programme committee via single blind reviews and each paper was reviewed by two to
three members of the programme committee. The full results of the contest are published on
our website1 .
The contest organisers thank all authors for submitting cases and solutions, the contest
participants, the STAF local organisation team, the STAF general chair Adrian Rutle, the steering
committee and the program committee for their support.
25 June 2021 Artur Boronat
Bergen, Norway (virtually) Antonio García-Domínguez
Georg Hinkel
1
https://www.transformation-tool-contest.eu/
Steering Committee
Hubert Garavel INRIA, France
Juan de Lara Universidad Autónoma de Madrid, Spain
Pedro J. Molina Metadev S.L.
Richard Paige McMaster University, Canada
Davide di Ruscio University of L’Aquila, Italy
Manuel Wimmer TU Wien, Austria
Programme Committee
Konstantinos Barmpis University of York, United Kingdom
Artur Boronat University of Leicester, United Kingdom
Juan Boubeta-Puig University of Cádiz, Spain
Erwan Bousse Vienna University of Technology, Austria
Théo Le Calvar University of Angers, France
Antonio García-Domínguez Aston University, United Kingdom
Georg Hinkel Tecan Software Competence Center, Germany
Akos Horvath Budapest University of Technology and Economics, Hungary
Arend Rensink University of Twente, The Netherlands
Jesús Sánchez Cuadrado Universidad de Murcia, Spain
Gergely Varró Independent
Ran Wei Dalian University of Technology, China