A Practical Approach to Software Quality by Gerard O'Regan PDF

By Gerard O'Regan

ISBN-10: 0387224548

ISBN-13: 9780387224541

ISBN-10: 1441929517

ISBN-13: 9781441929518

Overview the purpose of this e-book is to supply a pragmatic creation to software program caliber in an business atmosphere and relies at the author's event in operating in software program engineering and software program caliber development with top indus­ trial businesses. The ebook is written from a practitioner's point of view, and the target is to incorporate either thought and perform. The reader will achieve a take hold of of the basics in addition to counsel at the useful program of the speculation. the rules of software program caliber administration and software program technique im­ provement are mentioned, and counsel at the implementation of adulthood mod­ els resembling the CMM, SPICE, or the ISO 9000:2000 commonplace is integrated. association and contours the 1st bankruptcy presents an creation to the basics of caliber guy­ agement. Later chapters examine software program inspections and checking out, ISO 9000, the CMM, the evolving SPICE common, metrics and challenge fixing, and the ultimate bankruptcy on formal tools and layout considers a few complicated subject matters, includ­ ing configuration administration, UML, software program usability, and formal equipment. The reader might locate the cloth heavy getting into areas, in particular within the part on formal equipment, and this part can be skipped. The publication contains a bankruptcy on software program inspections and checking out, and this in­ cludes fabric on Fagan inspections to construct caliber into the software program product.

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Many software companies may consider one defect per thousand lines of code (KLOC) to be reasonable quality. However, if the system contains one million lines of code this is equivalent to a thousand post-release defects, which is unacceptable. Some mature organizations have a quality objective of three defects per million lines of code. This goal is known as six sigma and is used as a quality objective by organizations such as Motorola. Six sigma (6a) was originally applied by Motorola to its manufacturing businesses, and subsequently applied to the software businesses.

This involves resolving any problems which have been identified, and bringing any problems which cannot be resolved to the attention of the management or supervisorlevel. The next step is to communicate the meaning of zero defects to the employees. , zero defects. This requires that all supervisors and managers receive training on the 14 step quality improvement program. This involves setting aside one day each year to highlight zero defects, and its importance to the organization. Supervisors and managers will explain the importance of zero defects to the staff.

The term "software metric" was coined by Tom Gilb in his influential book on software measurement [Glb:76]. The purpose of measurements in software engineering is to provide visibility and an objective indication of the effectiveness of the organization in achieving its key goals and objectives. There is, of course, no point in measuring for the sake of measuring itself and care is required to ensure that the measurements to be made are closely related to the particular goal. The well-known approach of Goal, Question, Metric (GQM) suggests that the organization first needs to identify the key goals which it is trying to achieve; then it identifies relevant questions which need to be answered to assess the extent to which the goal is being satisfied, and then to formulate a metric to give an objective answer to the particular question.

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A Practical Approach to Software Quality by Gerard O'Regan

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