This paper presents the experience of modeling land transportation domain in the formal framework of Event-B. Well-specified requirements are crucial for good software design; they depend on the understanding of the domain. Thus, domain engineering becomes an essential activity. The possibility to have a formal model of a domain, consistent with the use of formal methods for developing critical software working within it, is an important issue. Safety-critical domains, like transportation, exhibit interesting features, such as high levels of nondeterminism, complex interactions, stringent safety properties, and multifaceted timing attributes. The formal representation of these features is a challenging task. The possibility of utilizing Event-B as a domain engineering tool is explored. It is shown how the problems faced during this exercise are tackled. Special attention is devoted to the issue of the validation of the model, in particular with a technique based on the animation of specifications. Event-B is mature enough to be an effective tool to model domains except in some areas, temporal properties mainly, where more work is still needed.
Utilizing Event-B for domain engineering: a critical analysis
Einsatz von Element-B für das Domain-Engineering: Eine kritische Analyse
2011
17 Seiten, 6 Bilder, 47 Quellen
Conference paper
English
Anforderungsanalyse , Animation (Bewegtdarstellung) , Domäne , Ereignis , ereignisgesteuertes Transportmanagement , formale Spezifikation , formale Sprache , Framework (Programmierung) , Komplexität , Landverkehr , Modellbildung , Pflichtenheft , Projektmanagement-Software , Safety-Critical-Software-Design , Sicherheitsvorschrift , Software-Design , Software-Engineering , Spedition-Software , Validierung , Verkehrsfluss , Wechselwirkung , Zeitverhalten
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