This TTC 2013 case study is an update-in-place quality improvement transformation on UML class diagrams. Its aim is to remove clones of attributes and associations from a class diagram, and to identify new classes which abstract groups of classes that share common data features. 

It is used as one of a general collection of transformations (such as the removal of redundant inheritance, or multiple inheritance) which aim to improve the quality of a specification or design level class diagram.

The transformation is a typical example of a model refactoring, and illustrates the issues involved in such transformations.

Resources

• Kevin Lano, S. Kolahdouz-Rahimi, "Case Study: Class Diiagram Restructuring", TTC 2013, updated on February 24
• Share Demo
• Updated version of metamodel, testcases and the extension testcases

Initial Solutions

• Solving the Class Diagram Restructuring Transformation Case with FunnyQT
• Class Diagram Restructuring with GROOVE