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VAST: 2nd Int’l Workshop on Variability-intensive Systems Testing, Validation & Verification

by Vanessa Stricker last modified Jan 30, 2012 17:54
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April 21, 2012 - Montreal, Canada (co-located with ICST 2012)

Research/Industry Paper submission deadline has been extended till the 5th of February!


Variability is key enabler for most systems throughout their development and evolution. Customer demand and continuously changing context (environment, legal and business settings, technology, etc.) call for more flexibility in software engineering. This major trend impacts the whole engineering process, with emerging key paradigms such as Software Product Lines, Service-oriented Systems and Dynamically Adaptive Systems. All these paradigms aim at providing solutions to introduce and manage variability at different stages of the life-cycle. Combinatorial explosion due to variability is a common problem spanning over all these paradigms. 
Testing and verifying variability-intensive systems, thus, becomes a key issue that is gaining increased attention in practice. To date, specific techniques such as combinatorial interaction testing and modular checking have been proposed to tackle it. However, the field is still in its infancy. Although first results showing promising outcomes, they need to be fully developed and their practical applicability has to be demonstrated. The integration and combination of V&V techniques is a possible direction to address the aforementioned challenges. Questions concerning the scalability, quality and usability of the results as well as integration during the overall system lifecycle still have to be answered. Furthermore, being scattered across several communities, some general advances may be difficult to share and spread widely. 
The objective of the 2nd International Workshop on VAriability-intensive Systems Testing, Validation and Verification is to provide a forum for researchers and practitioners to share their ideas and results and to start discussions on possible synergies and collaborative efforts towards for testing, verification, and validation of variability-intensive systems.


Topics include but are not limited to: 
  • Test Definition (during Domain Engineering / Application Engineering, Problem Space / Solution Space) 
  • Test Generation and Test Selection 
  • Test Oracles 
  • Acceptance Criteria 
  • Assessing Test Quality and Coverage 
  • Test Case and Data Reuse 
  • Testing Processes for Variability-intensive Systems 
  • Model-driven and Model-based Testing 
  • Online Testing and Run-time Verification 
  • Regression Testing and Verification 
  • Variability Formalization for Testing, Validation and Verification (i.e. Compositional and incremental Model Checking) 
  • Variability Space Exploration Strategies: e.g. Incremental vs. Global 
  • Formal Verification (i.e. Model Checking) for Variable Specifications (i.e. Design and Architecture) 
  • Combining V&V and Testing 
  • Variability V&V for Specific Application Areas (dependability, resilience, etc.) 
  • Scalability Issues 
  • Extra-functional Properties (security, performance)


Papers can be submitted in the following categories: 
  • Research/Industry papers demonstrating some original ideas and emerging results/tool support. 
  • Vision/Position papers stating the current state of the art and where the community should go, or early ideas that are not mature enough to be described in a research paper. 
Papers should conform to the two-column IEEE conference publication format and will be published together with the ICST proceedings. Papers should not exceed 8 pages for Research/Industry papers of 4 pages for Vision/Position papers. Paper submissions is handled electronically. Further information can be found on the workshop website. Each paper will be reviewed by at least three PC Members.

Papers should be submitted via Easychair at

Important Dates

  • Research/Industry papers (extended): Feb. 05, 2012  (23:59 Pago Pago, American Samoa Time)
  • Vision/Demo papers: Feb. 14, 2012 (23:59 Pago Pago, American Samoa Time)

  • Notification of acceptance: Feb. 28, 2012 
  • Camera-ready copies: Mar. 15, 2012 
  • Workshop: April 21, 2012

Organising Committee

  • Andreas Metzger, Paluno (The Ruhr Institute for Software Technology), University of Duisburg-Essen, Germany 
  • Sebastian Oster, Real-Time Systems Lab, Technical University of Darmstadt, Germany 
  • Vanessa Stricker, Paluno (The Ruhr Institute for Software Technology), University of Duisburg-Essen, Germany

Steering Committeee

  • Gilles Perrouin, Faculty of Computer Science, University of Namur (FUNDP), Belgium 
  • Patrick Heymans, Faculty of Computer Science, University of Namur (FUNDP), Belgium 
  • Yves le Traon, Faculty of Science, Technology and Communication, University of Luxembourg, Campus Kirchberg, Luxemburg

Call for Papers

Please find the call for papers here.



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