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T-UPPAAL: online model-based testing of real-time systems

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3 Author(s)
Mikucionis, M. ; Dept. of Comput. Sci., Aalborg Univ., Denmark ; Larsen, K.G. ; Nielsen, B.

The goal of testing is to gain confidence in a physical computer based system by means of executing it. More than one third of typical project resources are spent on testing embedded and real-time systems, but still it remains ad-hoc, based on heuristics, and error-prone. Therefore systematic, theoretically well-founded and effective automated real-time testing techniques are of great practical value. Testing conceptually consists of three activities: test case generation, test case execution and verdict assignment. We present T-UPPAAL-a new tool for model based testing of embedded real-time systems that automatically generates and executes tests "online" from a state machine model of the implementation under test (IUT) and its assumed environment which combined specify the required and allowed observable (realtime) behavior of the IUT. T-UPPAAL implements a sound and complete randomized testing algorithm, and uses a formally defined notion of correctness (relativized timed input/output conformance) to assign verdicts. Using online testing, events are generated and simultaneously executed.

Published in:

Automated Software Engineering, 2004. Proceedings. 19th International Conference on

Date of Conference:

20-24 Sept. 2004