Requirements Risk Assessment - Integrating QFD and Risk Assessment

摘要

A modified Quality Function Deployment (QFD) analysis [Hauser and Clausing,rn1988] was applied to evaluate development risk for user requirements across multiple systemrnarchitectures. Applying QFD to the risk assessments required tailoring the approach to capturernand quantify subjective risk judgments and to reconcile them with raw risk assessment data fromrnspecific designs. Initial evaluation of development risk from each architecture showed thatrnoverall risk reduction activities were acceptable as planned. Risk assessments were alsornconducted on updated designs using the QFD assessment to confirm validity of the final riskrnreduction plans.rnThis method extends previous work by Clausing and Cohen [1999], which described the usernof QFD to capture requirements relationships, and U.S. Air Force guidance [AFMC, 1977],rnwhich describes methods for risk evaluation. It allows capture of the strength of relationshiprnbetween user requirements and development risk early in a program by use of conceptual systemrnarchitectures. This permits early evaluation of the trade offs between user requirements and riskrnmitigation efforts prior to committing a program to a functional baseline is established for userrnrequirements and the design solution.