NDLI: Importance Measures for a Modular Software System (Short Paper)

Content Provider	IEEE Xplore Digital Library
Author	Fiondella, L. Gokhale, S.S.
Copyright Year	2008
Description	Author affiliation: Dept. of Comput. Sci. & Eng., Connecticut Univ., Storrs, CT (Fiondella, L.; Gokhale, S.S.)
Abstract	Importance measures of a system provide a sense of the relative priorities of the components from a system reliability perspective. These measures can thus be used to identify critical components and to guide the allocation of resources so that the system reliability can be improved in a cost effective manner. Importance measures are widely used in many engineered hardware and electro-mechanical systems. Their use in the engineering of software systems, however, is lacking. In this paper we develop an analytical methodology to compute the importance measures of a software system. The analytical treatment facilitates an assessment of the sensitivity of the importance measures of a software system to the uncertainties in its architectural parameters, component reliabilities, and operational profiles. The capability of enabling sensitivity analysis, which is a key strength of our approach, is crucial to the adaptation of importance measures in software because the parameters characterizing a software system are inherently expected to be uncertain, especially in the design phase. We illustrate the potential of our approach to provide valuable information towards resource allocation decisions using an example application from the European Space Agency.
Starting Page	338
Ending Page	343
File Size	450914
Page Count	6
File Format	PDF
ISBN	9780769533124
ISSN	15506002
DOI	10.1109/QSIC.2008.42
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-08-12
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	IP networks Reliability Computer architecture Software systems Software Sensitivity Software reliability importance assessment software reliability software architecture uncertainty
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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