Factor oriented requirement coverage based system test case prioritization of new and regression test cases

  • Authors:

  • R. Krishnamoorthi;S. A. Sahaaya Arul Mary

  • Affiliations:

  • Department of Information Technology, Bharathidasan Institute of Technology, Trichy 24, Tamilnadu, India;Department of Information Technology, Bharathidasan Institute of Technology, Trichy 24, Tamilnadu, India

  • Venue:
  • Information and Software Technology
  • Year:
  • 2009

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Abstract

Test case prioritization involves scheduling test cases in an order that increases the effectiveness in achieving some performance goals. One of the most important performance goals is the rate of fault detection. Test cases should run in an order that increases the possibility of fault detection and also that detects the most severe faults at the earliest in its testing life cycle. In this paper, we propose to put forth a model for system level test case prioritization (TCP) from software requirement specification to improve user satisfaction with quality software that can also be cost effective and to improve the rate of severe fault detection. The proposed model prioritizes the system test cases based on the six factors: customer priority, changes in requirement, implementation complexity, completeness, traceability and fault impact. The proposed prioritization technique is validated with two different validation techniques and is experimented in three phases with student projects and two sets of industrial projects and the results show convincingly that the proposed prioritization technique improves the rate of severe fault detection.