Leader of the group Software Analysis and Transformation: Jurgen Vinju.

SWAT studies software systems: their design, construction and evolution. Our mission is to learn to understand software systems and to improve their quality. In particular, we study the causes of software complexity – a major cause of technology failure in society – and investigate how complex systems can be made simpler and more reliable. We analyze and visualize software systems, transforming them into better versions of themselves. We also generate new software with the goal of simplifying it through automation and abstraction. We keep our feet on the ground by working with corporate IT departments on streamlining their software systems and making them more reliable. Putting our ideas into practice is the best way to ensure they work.


SIG wins ICTRegie Award

On Wednesday the Software Improvement Group (SIG) won the ICTRegie Award. The CWI spin-off SIG analyses any software source code in an automated manner. The company maps out the quality of the system, measures the changeability and assesses the situation. All based on automated analysis of source code. Paul Klint, Tobias Kuipers, Arie van Deursen and Marjo Wildvank are the founders of SIG.

SIG wins ICTRegie Award - Read More…

Jan van Eijck appointed NIAS Fellow

Jan van Eijck has been appointed NIAS fellow on 1 September 2006. For five months he will be engaged in research on Games, Action and Social Software at the Netherlands Institute for Advanced Study in the Humanities and Social Sciences (NIAS) in Wassenaar. During this period, scientists from different disciplines - philosophy, logic, computer science, psychology, and economics - collaborate in an intensive interactive setting to find a more unified view of social mechanisms.

Jan van Eijck appointed NIAS Fellow - Read More…


Logic, Rationality and Common Sense - Workshop on the occasion of Jan van Eijck's retirement

  • 2017-06-02T00:00:00+02:00
  • 2017-06-02T23:59:59+02:00
June 2 Friday

Start: 2017-06-02 00:00:00+02:00 End: 2017-06-02 23:59:59+02:00

Turing zaal, CWI gebouw, Science Park 123, Amsterdam


Reflections on the possibilities and the limitations of applications of logic to the analysis of human behaviour. The workshop is intended to create a space to talk about issues that are not often addressed in public in scientific circles.

Speakers: Alexandru Baltag, Hans van Ditmarsch, Reinhard Muskens, Rineke Verbrugge, Albert Visser and Jan van Eijck.

To register: see website.


PhD Defence Michael Steindorfer (SWAT)

  • 2017-02-28T13:00:00+01:00
  • 2017-02-28T15:30:00+01:00
February 28 Tuesday

Start: 2017-02-28 13:00:00+01:00 End: 2017-02-28 15:30:00+01:00

Agnietenkapel, Oudezijds Voorburgwal 231, Amsterdam

Everybody is welcome to attend he public defense of Michael of his thesis 'Efficient Immutable Collections'.

Promotor: Prof.dr. Paul Klint en Prof.dr. Jurgen Vinju

PhD Defence Atze van der Ploeg (SWAT)

  • 2015-04-08T12:00:00+02:00
  • 2015-04-08T14:30:00+02:00
April 8 Wednesday

Start: 2015-04-08 12:00:00+02:00 End: 2015-04-08 14:30:00+02:00

Agnietenkapel, Oudezijds Voorburgwal 229-231, 1012 EZ Amsterdam

Everybody is welcome to attend the public defence of Atze Johannes van der Ploeg of his thesis 'Efficient Abstractions for Visualization and Interaction'

Promotor: Prof.dr. Paul Klint (CWI)

Copromotor: Dr. Tijs van der Storm (CWI)

Members of Software Analysis and Transformation



Current Projects

  • Adviseren en verrichten van onderzoek naar de functionele en niet-functionele eigenschappen van een deel van ING\'s IT-infrastructuur
  • Enterprise software engineering
  • Live Game Design
    Developer-Centric Knowledge Mining from Large Open-Source Repositories
    Model Extraction for Re-engineering Traditional Software


  • Dutch Game garden
  • Firebrush Studios
  • IC3D Media
  • ING Bank
  • ING Bank
  • Ludomotion
  • Hogeschool van Amsterdam
  • Technische Universiteit Delft