An Ambiguity Review, developed by Richard Bender from Bender RBT, Inc., is a very powerful testing technique that eliminates defects in the requirements phase of the software life cycle, thereby avoiding those defects from propagating to the remaining phases of the software development life cycle. A QA Engineer trained in the technique performs the Ambiguity Review. The Engineer is not a domain expert (SME), and is not reading the requirements for content, but only to identify ambiguities in the logic and structure of the wording. The Ambiguity Review takes place after the requirements, or section of the requirements, reach first draft, and prior to them being reviewed for content, i.e. correctness and completeness by domain experts. The Engineer identifies all ambiguous words and phrases on a copy of the requirements. A summary of the findings is presented to the Business Analyst.
The Ambiguity Review Checklist identifies 15 common problems that occur in writing requirements.
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