A Spectrum Analysis Method for Software Quality Requirements Analysis Using History of Analyses

A method to analyze a requirements specification for identifying the importance of quality requirements in the specification has been already proposed, and the importance is derived from the amount of quality requirements in the specification. However, whether such amount really reflects the importance was not examined enough in the method. In addition, the method required human decisions a lot. In this paper, we show the solutions for these two problems. We first examine whether the amount of each quality requirement described in a specification reflects its importance. We conclude such amount reflects the importance when we revise the amount based on a priority among quality requirements and the distribution of shared quality requirements. We next propose an improved method by using analyses records of similar systems for automated analysis. We also developed a supporting tool to enact our method. We expect such analyses records help an analyst to make or skip decision during the method, and the result becomes more correct than before. We applied our method to several requirements specifications, and found our method contribute to making the result more correct than before without a lot of human effort.