Marius Mikucionis

BRICS, Aalborg University, Denmark.

Time: Wednesday 13.10.2004, 14:30
Place: Room A4-108, Fr. Bajersvej 7

Online Testing of Real-time Systems

We present T-UPPAAL - a new tool for online black-box testing of real-time embedded systems from non-deterministic timed automata specifications. We describe a sound and complete randomized online testing algorithm and how to implement it using symbolic state representation and manipulation techniques. We propose the notion of relativized timed input/output conformance as the formal implementation relation. A novelty of this relation and our testing algorithm is that they explicitly take environment assumptions into account, generate, execute and verify the result online using the UPPAAL on-the-fly model-checking tool engine. A medium size case study shows promising results in terms of error detection capability and computation performance.

This is a joint work with Kim G. Larsen and Brian Nielsen.