A novel approach to interval comparison and application to software quality evaluation

Owing to increasing complexity in the real world, many attributes in decision science are uncertain. The interval data are more suitable for characterising those attributes. The interval comparison is an important research topic in this background. This paper proposes a new method for comparing two intervals based on a two-dimensional geometric interpretation. The equivalence is illustrated through a proof. Some mathematical experiments are provided to illustrate the validity. The proposed method is applied to the quality evaluation of software product. The results show that the provided method has important implications in both theoretical and practical perspectives.