Model-Based Testing of Safety Critical Real-Time Control Logic Software

The paper presents the experience of the authors in model based testing of safety critical real-time control logic software. It describes specifics of the corresponding industrial settings and discusses technical details of usage of UniTESK model based testing technology in these settings. Finally, we discuss possible future directions of safety critical software development processes and a place of model based testing techniques in it.Comment: In Proceedings MBT 2012, arXiv:1202.582

MBT 2006 Formal Conformance Testing of Systems with Refused Inputs and Forbidden Actions

The article introduces an extension of the well-known conformance relation ioco on labeled transition systems (LTS) with refused inputs and forbidden actions. This extension helps to apply the usual formal testing theory based on LTS models to incompletely specified systems, which are often met in practice. Another topic concerned in the article is compositional conformance. More precisely, we try to define a completion operation that turns any LTS into input-enabled one having the same set of ioco-conforming implementations. Such a completion enforces preservation of ioco conformance by parallel composition operation on LTSes. Key words: Formal testing, conformance testing, LTS, implementation relation, refusals, ioco