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Formal reasoning of resource-aware services
Publication Type:
Report - MRTC
ISRN:
MDH-MRTC-245/2010-1-SE
Abstract
Service-oriented systems have recently emerged as
context-independent component-based systems. Unlike
components, services can be created, invoked, composed,
and destroyed at run-time. Consequently, all services
should have a way of advertising their capabilities to the
entities that will use them, and service-oriented modeling
should cater for various kinds of service composition.
In this paper, we show how services can be formally
described by the resource-aware timed behavioral language
REMES, which we extend with service-specific information,
such as type, capacity, time-to-serve, etc., as well
as boolean constraints on inputs, and output guarantees.
Assuming a Hoare-triple model of service correctness, we
show how to check it by using the strongest postcondition
semantics. To provide means for connecting REMES
services, we propose a hierarchical language for service
composition, which allows for verifying the latters correctness.
The approach is applied on an abstracted version of
an intelligent shuttle system, for which we also compute
resource-efficient behaviors, and energy-time trade-offs,
by model-checking the systems underlying Priced Timed
Automata semantic representation.
Bibtex
@techreport{Causevic1818,
author = {Aida Causevic and Cristina Seceleanu and Paul Pettersson},
title = {Formal reasoning of resource-aware services},
number = {ISSN 1404-3041 ISRN MDH-MRTC-245/2010-1-SE},
month = {June},
year = {2010},
url = {http://www.es.mdu.se/publications/1818-}
}