Get Software Verification and Validation for Practitioners and PDF

By Steven R. Rakitin

ISBN-10: 1580532969

ISBN-13: 9781580532969

ISBN-10: 1580534732

ISBN-13: 9781580534734

A concise and sensible creation to the elemental rules of powerful software program verification and validation (V&V). This version has been revised and comprises 5 new chapters and 5 new appendices concerned with administration options to make your company's software program V&V efforts less costly. Managers may still easy methods to aid their association create extra exact estimates and schedules. Practitioners should still research primary software program V&V practices reminiscent of the formal inspection technique, configuration administration, potent checking out thoughts, and the way to exploit measurements to force extra technique advancements.

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Additional resources for Software Verification and Validation for Practitioners and Managers, Second Edition

Example text

During informal validation, developers are free to change whatever is required to meet the SRS. During formal validation, the only changes that are permitted are changes in response to bugs reported. No new features are allowed during this time. Why? Because adding new features at such a late stage would essentially invalidate all of the testing that was performed previously. 2 Concurrent development life-cycle model. 2 and the synchronize-and-stabilize model has to do with having objective criteria defined for starting formal validation testing and for completing formal validation testing.

In this model, the SRS is the starting point for development of both software and tests. Developers and software QA engineers work concurrently to develop and test the software. In the synchronize-and-stabilize model, the project team begins with the product vision, a vague description of what the product should do. An SRS evolves over the course of the project from this product vision. The key attribute of this model is that developers and QA work concurrently. As bits of the product are developed, they are immediately tested and feedback is provided to developers.

Feedback from testing is immediate. • No new features are added at the last minute. • Formal validation testing is uneventful and predictable, since most of the bugs have already been found and fixed. Some of the disadvantages of this model are: • It requires that an SRS be written and maintained as the product features evolve. • It requires discipline to ensure that features are not added late into the project. 3 The Rapid Prototyping Model In many instances, companies build software for customers who are not exactly sure of what they want or need.

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Software Verification and Validation for Practitioners and Managers, Second Edition by Steven R. Rakitin

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