Title: A discrete SRGM for multi-release software system with faults of different severity

Authors: Anu G. Aggarwal; P.K. Kapur; Nidhi Nijhawan

Addresses: Department of Operational Research, University of Delhi, Delhi – 110007, India ' Amity International Business School, Amity University, Sector-44, Noida – 201303, UP, India ' Department of Operational Research, University of Delhi, Delhi – 110007, India

Abstract: To meet highly competitive market challenges along with technological upgrades and changing user requirements, software firms offer newer versions of their products by adding new features and new functionalities. But this also results in increase in the fault content of software. In this paper we propose a discrete software reliability growth model (SRGM) for fault removal process incorporating the effect of up-gradations on the subsequent releases of the software. It is further assumed that faults present in the software are not of the same type and may be classified as simple and hard faults depending upon the effort and time consumed for their removal. The proposed model has been validated on a real life dataset for software with four releases. The results obtained are encouraging and fairly accurate.

Keywords: software reliability; discrete SRGM; fault removal process; multi release software; simple faults; hard faults.

DOI: 10.1504/IJOR.2018.092012

International Journal of Operational Research, 2018 Vol.32 No.2, pp.156 - 168

Received: 09 Jun 2014
Accepted: 02 May 2015
Published online: 30 May 2018 *

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