V&V of Lexical, Syntactic and Semantic Properties for Interactive Systems Through Model Checking of Formal Description of DialogReportar como inadecuado




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1 ARC - NASA Ames Research Center 2 IRIT - Institut de recherche en informatique de Toulouse

Abstract : During early phases of the development of an interactive system, future system properties are identified through interaction with end users in the brainstorming and prototyping phase of the application, or by other stakeholders imposing requirements on the final system. They can be specific to the application under development or generic to all applications such as usability principles. Instances of specific properties include visibility of the aircraft altitude, speed… in the cockpit and the continuous possibility of disengaging the autopilot in whatever state the aircraft is. Instances of generic properties include availability of undo for undoable functions and availability of a progression bar for functions lasting more than four seconds. While behavioral models of interactive systems using formal description techniques provide complete and unambiguous descriptions of states and state changes, it does not provide explicit representation of the absence or presence of properties. Assessing that the system that has been built is the right system remains a challenge usually met through extensive use and acceptance tests. By the explicit representation of properties and the availability of tools to support checking these properties, it becomes possible to provide developers with means for systematic exploration of the behavioral models and assessment of the presence or absence of these properties. This paper proposes the synergistic use two tools for checking both generic and specific properties of interactive applications: Petshop and Java PathFinder. Petshop is dedicated to the description of interactive system behavior. Java PathFinder is dedicated to the runtime verification of Java applications and as an extension dedicated to User Interfaces. This approach is exemplified on a safety critical application in the area of interactive cockpits for large civil aircrafts.

Keywords : Interactive system Aircraft Generic and specific properties Interactive applications Petshop Java PathFinder Safety critical application Interactive cockpits





Autor: Guillaume Brat - Célia Martinie de Almeida - Philippe Palanque -

Fuente: https://hal.archives-ouvertes.fr/



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