Verification and performance evaluation of aadl models

Authors:
Marco Bozzano;Alessandro Cimatti;Marco Roveri;Joost-Pieter Katoen;Viet Yen Nguyen;Thomas Noll
Affiliations:
Fondazione Bruno Kessler, Trento, Germany;Fondazione Bruno Kessler, Trento, Germany;Fondazione Bruno Kessler, Trento, Germany;Aachen University, Aachen, Germany;Aachen University, Aachen, Germany;Aachen University, Aachen, Germany
Venue:
Proceedings of the the 7th joint meeting of the European software engineering conference and the ACM SIGSOFT symposium on The foundations of software engineering
Year:
2009

Citing 1
Cited 1

Codesign of dependable systems: a component-based modeling language

MEMOCODE'09 Proceedings of the 7th IEEE/ACM international conference on Formal Methods and Models for Codesign

Generation and validation of traces between requirements and architecture based on formal trace semantics

Journal of Systems and Software

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Abstract

This paper reports on a model-based approach to system-software co-engineering which is tailored to critical on-board systems for the aerospace domain but is relevant to a much wider class of dependable systems. Our main contribution is a formal semantics for a greater part of standardised AADL, the Architecture Analysis and Design Language, and its Error Model Annex. It covers nominal and degraded hardware/software operations, hybrid (and timing) aspects as well as probabilistic faults, their propagation and recovery. The accompanying software toolset employs SAT-based and symbolic model checking techniques and probabilistic variants thereof. The precise nature of these techniques together with the formal semantics provide a trustworthy modelling and analysis framework to support, among others, assessment of functional correctness, evaluation of performance measures and automated derivation of dynamic fault trees, FMEA tables and observability requirements.