NDLI: Dependability of modular software in a multiuser operational environment

Content Provider	IEEE Xplore Digital Library
Author	Meyer, J.F. Littlewood, B. Wright, D.R.
Copyright Year	1995
Description	Author affiliation: Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA (Meyer, J.F.)
Abstract	Effects of shared use on the dependability of modular software are evaluated in terms of a generally defined stochastic model. The total system in question consists of a community of n users who share a software system with m modules. The input aspect of the operational environment, reflecting user demands at the module level, is represented by a continuous-time, finite-state Markov process, called the operational profile. The profile's construction is based on the isolated profiles of individual users which, in the case of heterogeneous use, are pairwise-distinct processes. Moreover, in the presence of other users, an individual profile can differ from its isolated version due to "slowdowns" caused by sharing. This multiuser profile is then combined with a failure model which, among other things, captures "stress" due to shared use. A number of basic issues are then addressed and resolved in terms of closed-form dependability solutions obtained for elementary 2-user, 1-module systems. Specifically, three measures are investigated in this manner, providing considerable insight into how dependability, as perceived by a subject user, is affected by the profile of an interfering user.
Starting Page	170
Ending Page	179
File Size	1233856
Page Count	10
File Format	PDF
ISBN	0818671319
ISSN	10719458
DOI	10.1109/ISSRE.1995.497655
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-10-24
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Markov processes Software performance Humans Reliability engineering Software reliability Stochastic processes Software design Computer applications Terminology Design engineering
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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