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Call for Papers
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10th International Workshop on Testing Extra-Functional Properties and Quality Characteristics of Software Systems (ITEQS) 2026

18 May 2026

Co-located with the 19th IEEE International Conference on Software Testing, Verification and Validation (ICST) 2026

In Daejeon, Republic of Korea.

Web: https://conf.researchr.org/home/icst-2026/iteqs-2026

Twitter: https://twitter.com/ITEQS

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Important Dates
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Paper Submission: 2 Mar 2026
Notification: 27 Mar 2026
Camera-Ready: 10 Apr 2026
Workshop: 18 May 2026

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Scope
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The rapid development towards increased integration of software with the social and physical world that we see today means that quality aspects such as performance, safety, security, and robustness become more important in an increasing number of the systems and devices, which we use and depend on. In this context, the success of a software product may not only depend on the logical correctness of its functions, but also on the system quality characteristics. Such system characteristics, which are referred to and captured as Extra-Functional Properties (EFPs) or Non-Functional Properties, are particularly important in resource-constrained systems, such as in the domains of real-time embedded and cyber-physical systems. Therefore, such systems need to be tested with a special attention to the EFPs. Testing EFPs is challenging and often requires different approaches compared to testing normal functionality. ITEQS provides a focused forum with the goal of bringing together researchers and practitioners to share ideas, identify challenges, propose solutions and techniques, and, in general, expand the state of the art in testing EFPs and quality characteristics of software systems and services. The workshop endorses contributions in a wide range of topics related to testing of EFPs in the form of full papers and short yet solid work-in-progress/position papers.

Note: The workshop does not accept papers focusing purely on functional testing!

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Topics
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Topics of interest include, but are not limited to the following:

1) Methods and foundations for testing EFPs / quality characteristics:
... Model-based testing of EFPs
... Mutation-based testing for EFPs
... Search-based and AI-assisted techniques for testing EFPs
... Coverage criteria and test-stop criteria in EFP testing
... Requirements engineering for EFPs and testable EFP specifications
... Testability, observability, and the role of the platform
... Fault localization, debugging, and diagnosis for EFP violations
... Static analysis for evaluation of EFPs
... Formal methods, model checking, and reasoning about EFPs
... Empirical studies, benchmarks, and experience reports on EFP testing
2) EFP testing of modern platforms and domains:
... Testing real-time, embedded, and cyber-physical systems and their challenges
... Testing of multicore applications
... Testing quality characteristics of distributed, mobile, cloud, and edge applications
... Testing quality attributes in software product lines and variant-intensive systems
... Continuous Integration and Continuous Deployment (CI/CD) in relation to EFP testing
... Quality assurance processes, standards, and their impact on testing EFPs
3) Trustworthy AI/ML quality properties and compliance:
... Testing AI and ML systems for quality attributes (robustness, reliability, security/privacy, fairness, transparency, bias)
... Testing for fairness, transparency, and bias in AI/ML systems, especially for LLMs
... Compliance-oriented testing and assurance (e.g., regulatory or standards-driven)
4) Emerging platforms/toolchains (e.g., quantum, low-code/no-code) when tied to EFP testing methods or evidence.

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Submission and Formatting
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ITEQS 2026 accepts two kinds of submissions addressing the testing of extra-functional properties:
1) full papers: 6-10 pages
2) solid work-in-progress and position papers: 4 pages
in IEEE double-column format.

Submission site: https://easychair.org/conferences/?conf=iteqs2026

Accepted papers will be published in the IEEE Digital Library.

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Organizing Committee
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- Mehrdad Saadatmand, RISE Research Institutes of Sweden, Sweden (mehrdad.saadatmand[at]ri.se)
- Mahshid Helali Moghadam, Scania CV AB, Sweden (mahshid.helali.moghadam[at]scania.com)
- Fitash Ul Haq Luxembourg Institute of Science and Technology, Luxembourg (fitash.ulhaq[at]list.lu)
- Tanwir Ahmad, Åbo Akademi University, Finland (tanwir.ahmad[at]abo.fi)