conference paper published yes Przemyslaw Daca author 49351290-F248-11E8-B48F-1D18A9856A87 Thomas A Henzinger author 40876CD8-F248-11E8-B48F-1D18A9856A870000−0002−2985−7724 Willibald Krenn author Dejan Nickovic author ToHe department ICST: International Conference on Software Testing, Verification and Validation Quantitative Reactive Modeling project Moderne Concurrency Paradigms project Model-based testing is a promising technology for black-box software and hardware testing, in which test cases are generated automatically from high-level specifications. Nowadays, systems typically consist of multiple interacting components and, due to their complexity, testing presents a considerable portion of the effort and cost in the design process. Exploiting the compositional structure of system specifications can considerably reduce the effort in model-based testing. Moreover, inferring properties about the system from testing its individual components allows the designer to reduce the amount of integration testing. In this paper, we study compositional properties of the ioco-testing theory. We propose a new approach to composition and hiding operations, inspired by contract-based design and interface theories. These operations preserve behaviors that are compatible under composition and hiding, and prune away incompatible ones. The resulting specification characterizes the input sequences for which the unit testing of components is sufficient to infer the correctness of component integration without the need for further tests. We provide a methodology that uses these results to minimize integration testing effort, but also to detect potential weaknesses in specifications. While we focus on asynchronous models and the ioco conformance relation, the resulting methodology can be applied to a broader class of systems. IEEE2014Cleveland, USA eng 2159-4848 978-1-4799-2255-0 1904.07083 00035598500004010.1109/ICST.2014.50 https://research-explorer.ista.ac.at/record/5411 https://research-explorer.ista.ac.at/record/1155 Daca, P., Henzinger, T. A., Krenn, W., &#38; Nickovic, D. (2014). Compositional specifications for IOCO testing. In <i>IEEE 7th International Conference on Software Testing, Verification and Validation</i>. Cleveland, USA: IEEE. <a href="https://doi.org/10.1109/ICST.2014.50">https://doi.org/10.1109/ICST.2014.50</a> P. Daca, T.A. Henzinger, W. Krenn, D. Nickovic, in:, IEEE 7th International Conference on Software Testing, Verification and Validation, IEEE, 2014. Daca P, Henzinger TA, Krenn W, Nickovic D. Compositional specifications for IOCO testing. In: <i>IEEE 7th International Conference on Software Testing, Verification and Validation</i>. IEEE; 2014. doi:<a href="https://doi.org/10.1109/ICST.2014.50">10.1109/ICST.2014.50</a> P. Daca, T. A. Henzinger, W. Krenn, and D. Nickovic, “Compositional specifications for IOCO testing,” in <i>IEEE 7th International Conference on Software Testing, Verification and Validation</i>, Cleveland, USA, 2014. Daca P, Henzinger TA, Krenn W, Nickovic D. 2014. Compositional specifications for IOCO testing. IEEE 7th International Conference on Software Testing, Verification and Validation. ICST: International Conference on Software Testing, Verification and Validation, 6823899. Daca, Przemyslaw, Thomas A Henzinger, Willibald Krenn, and Dejan Nickovic. “Compositional Specifications for IOCO Testing.” In <i>IEEE 7th International Conference on Software Testing, Verification and Validation</i>. IEEE, 2014. <a href="https://doi.org/10.1109/ICST.2014.50">https://doi.org/10.1109/ICST.2014.50</a>. Daca, Przemyslaw, et al. “Compositional Specifications for IOCO Testing.” <i>IEEE 7th International Conference on Software Testing, Verification and Validation</i>, 6823899, IEEE, 2014, doi:<a href="https://doi.org/10.1109/ICST.2014.50">10.1109/ICST.2014.50</a>. 21672018-12-11T11:56:06Z2026-04-08T14:21:08Z