Requirements engineering pattern structure

The pattern is one of the effective tools to record and reuse the knowledge and know-how concerning software development. Although various patterns have been previously presented, we find it difficult to describe and acquire engineering patterns to support the software development process. We collected requirements engineering patterns and studied the structures of them. In the results of the study, three kinds of problems have been discovered. The first problem is that previously presented pattern forms are not suitable to describe engineering patterns. The second problem is that it is hard to find a desired pattern from a multitude of various patterns. The third problem is that there are qualitative differences between descriptions of patterns. We considered that the cause of these problems is the form of each pattern and, established two types of pattern structures: inside structure and outside structure. This paper presents a pattern structure for requirements engineering.