Assessing the Quality of Refactoring Patterns for Introducing Design Patterns

Refactoring is a well-known process to improve the code design of object-oriented programs. Recently, several literatures focus on refactoring with introducing design patterns that are general repeated solutions to common problems in software design. For making it easy to perform such refactoring, a lot of refactoring patterns are proposed. Each refactoring pattern includes a description of refactoring opportunities (i.e., when a software system should be performed refactoring with introducing design patterns) and the corresponding procedure (i.e., how to perform refactoring with introducing design patterns). However, the usefulness of each refactoring pattern is not clearly assessed. This paper describes our approach to assess the quality of refactoring patterns for introducing design patterns and also shows the assessment of open source software.