Interface Simulation Distances

Autor: Pavol Černý, Martin Chmelík, Thomas A. Henzinger, Arjun Radhakrishna
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Electronic Proceedings in Theoretical Computer Science, Vol 96, Iss Proc. GandALF 2012, Pp 29-42 (2012)
Druh dokumentu: article
ISSN: 2075-2180
DOI: 10.4204/EPTCS.96.3
Popis: The classical (boolean) notion of refinement for behavioral interfaces of system components is the alternating refinement preorder. In this paper, we define a distance for interfaces, called interface simulation distance. It makes the alternating refinement preorder quantitative by, intuitively, tolerating errors (while counting them) in the alternating simulation game. We show that the interface simulation distance satisfies the triangle inequality, that the distance between two interfaces does not increase under parallel composition with a third interface, and that the distance between two interfaces can be bounded from above and below by distances between abstractions of the two interfaces. We illustrate the framework, and the properties of the distances under composition of interfaces, with two case studies.
Databáze: Directory of Open Access Journals