Live Sequence Charts (LSCs) are an established visual formalism for requirements in formal, model-based development, in particular aiming at formal verification of the model. The model-checking problem for LSCs is principally long solved as each LSC has an equivalent LTL formula, but even for moderate sized LSCs the formulae grow prohibitively large. In… (More)
(DFG) under grant number DA 206/7-2 within the priority program " Integration of Specification Techniques with Engineering Applications ". ABSTRACT The European CENELEC norm now requires train system applications with critical safety integrity levels to be developed using formal methods, in particular " supporting various forms of analysis to check for… (More)
Im folgenden wird der Einsatz eines Prototypen zur formalen Verifikation von ASCET-SD-Modellen im Kontext der aktuell von BMW entwickelten Aktivlen-kung [EPK + 02] geschildert. Der Prototyp wurde zur¨Uberprüfung sicherheitsrelevan-ter Eigenschaften der Abschaltlogik verwendet, welche ein zentraler Bestandteil der Steuerung der Aktivlenkung ist.
an introduction to lines, arrows and strange boxes in the context of formal verification. Abstract. The language of Message Sequence Charts (MSC) is a well-established visual formalism which is typically used to capture scenarios in the early stages of system development. But when it comes to rigorous requirements capturing, in particular in the context of… (More)
This paper demonstrates the use of model-checking based veriication technology to establish safety critical properties for an industrial avionics application. The veriication technology is tightly integrated with the Statemate r system of i-Logix Inc., USA. Key features of this technology are its scalalability to complete system veriication, the powerful… (More)
This paper presents how a model-based development process can be enhanced by the combination of using Live Sequence Charts (LSC) as the formal language to describe interactions together with automatic formal verification techniques that decide whether communication sequences are exhibitable or adhered to by the system. We exemplify our approach on the… (More)