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VALUE-BASED, DEPENDENCY-AWARE INSPECTION AND TEST PRIORITIZATION
by
Qi Li
A Dissertation Presented to the
FACULTY OF THE USC GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
DOCTOR OF PHILOSOPHY
(COMPUTER SCIENCE)
December 2012
Copyright 2012 Qi Li
Object Description
| Title | Value-based, dependency-aware inspection and test prioritization |
| Author | Li, Qi |
| Author email | qli1@usc.edu |
| Degree | Doctor of Philosophy |
| Document type | Dissertation |
| Degree program | Computer Science (Software Engineering) |
| School | Viterbi School of Engineering |
| Date defended/completed | 2012-10-04 |
| Date submitted | 2012-11-21 |
| Date approved | 2012-11-21 |
| Restricted until | 2012-11-21 |
| Date published | 2012-11-21 |
| Advisor (committee chair) | Boehm, Barry W. |
| Advisor (committee member) |
Medvidovic, Nenad Medvidović, Nenad Settles, F. Stan |
| Abstract | As two of the most popular defect removal activities, Inspection and Testing are of the most labor-intensive activities in software development life cycle and consumes between 30% and 50% of total development costs according to many studies. However, most of the current defect removal strategies treat all instances of software artifacts as equally important in a value-neutral way; this becomes more risky for high-value software under limited funding and competitive pressures. ❧ In order to save software inspection and testing effort to further improve affordability and timeliness while achieving acceptable software quality, this research introduces a value-based, dependency-aware inspection and test prioritization strategy for improving the lifecycle cost-effectiveness of software defect removal options. This allows various defect removal types, activities, and artifacts to be ranked by how well they reduce risk exposure. Combining this with their relative costs enables them to be prioritized in terms of Return On Investment (ROI) or Risk Reduction Leverage (RRL). Furthermore, this strategy enables organizations to deal with two types of common dependencies among items to be prioritized. This strategy will help project managers determine “how much software inspection/testing is enough?” under time and budget constraints. Besides, a new metric Average Percentage of Business Importance Earned (APBIE) is proposed to measure how quickly testing can reduce the quality uncertainty and earn the relative business importance of the System Under Test (SUT). ❧ This Value-Based, Dependency-Aware Inspection and Testing strategy has been empirically studied and successfully applied on a series of case studies within different prioritization granularity levels: (1). Prioritizing artifacts to be reviewed in 21 graduate-level, real-client software engineering course projects; (2). Prioritizing testing scenarios to be applied in an industrial project at the acceptance testing phase in Galorath, Inc.; (3). Prioritizing software features to be functionally tested in an industrial project in the China-NFS company; (4). Prioritizing test cases to be executed in 18 course projects. All the comparative statistics analysis from the four case studies show positive results from applying the Value-Based, Dependency-Aware strategy. |
| Keyword | testing; inspection; review; prioritization; value-based;dependency; cost effective; APBIE; business importance; quality; risk exposure; probability; cost estimation; software engineering; software process |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Provenance | Electronically uploaded by the author |
| Type | texts |
| Legacy record ID | usctheses-m |
| Contributing entity | University of Southern California |
| Rights | Li, Qi |
| Physical access | The author retains rights to his/her dissertation, thesis or other graduate work according to U.S. copyright law. Electronic access is being provided by the USC Libraries in agreement with the author, as the original true and official version of the work, but does not grant the reader permission to use the work if the desired use is covered by copyright. It is the author, as rights holder, who must provide use permission if such use is covered by copyright. The original signature page accompanying the original submission of the work to the USC Libraries is retained by the USC Libraries and a copy of it may be obtained by authorized requesters contacting the repository e-mail address given. |
| Repository name | University of Southern California Digital Library |
| Repository address | USC Digital Library, University of Southern California, University Park Campus MC 7002, 106 University Village, Los Angeles, California 90089-7002, USA |
| Repository email | cisadmin@lib.usc.edu |
| Archival file | uscthesesreloadpub_Volume4/etd-LiQi-1329.pdf |
Description
| Title | Page 1 |
| Contributing entity | University of Southern California |
| Repository email | cisadmin@lib.usc.edu |
| Full text | VALUE-BASED, DEPENDENCY-AWARE INSPECTION AND TEST PRIORITIZATION by Qi Li A Dissertation Presented to the FACULTY OF THE USC GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree DOCTOR OF PHILOSOPHY (COMPUTER SCIENCE) December 2012 Copyright 2012 Qi Li |
