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Predictable Assemblies using Monitored Software Components

Fulltext:


Publication Type:

Report - MRTC

ISRN:

MDH-MRTC-160/2004-1-SE


Abstract

We propose monitoring of software compo-nents, and use of monitored software components, as a general approach for engineering of embed-ded computer systems. The concept is general in the sense that it addresses the whole product life-cycle including development, debugging, testing and maintenance. Also, reuse across multiple product versions and variants are facilitated by our approach to monitor components. The approach is mainly targeting the follow-ing 4 software engineering goals: Engineering with, and of, certified components, system level testing and debugging, run-time contract checking, and observability of system-internal behaviour. These goals are achieved by monitoring 4 aspects of component-level properties: Timing behaviour, memory usage, event ordering, and input-output sanity checks. Fulfilling these engineering goals will significantly reduce the costs, efforts and risks involved with developing dependable embedded systems. We propose an engineering approach where a components execution is continuously monitored and experience regarding component behaviour is accumulated. As more and more experience is collected the confidence in the component grow; with the goal to eventually allow certification of the component. Continuously monitoring is also the base for contract checking, and provides means for post-mortem crash analysis; an important prereq-uisite for any company to start use 3rd party com-ponent in their dependable systems.

Bibtex

@techreport{Sundmark594,
author = {Daniel Sundmark and Anders M{\"o}ller and Mikael Sj{\"o}din},
title = {Predictable Assemblies using Monitored Software Components},
number = {ISSN 1404-3041 ISRN MDH-MRTC-160/2004-1-SE},
month = {May},
year = {2004},
url = {http://www.es.mdu.se/publications/594-}
}