Evaluating User Interface Design Using Hierarchical Requirements Extraction Method (REM)

The paper shows the hierarchical requirements extraction method in order to evaluate user interface design. REM has two functions, (1) extracting the source of systems, products and GUI problems, (2) constructing the ultimate purpose of systems, products and GUI. The process is as follows. After the problems are acquired by checklist and so on, the solutions for problems are derived using the function solved the problems. The purpose of solutions is defined from view point of the relation of "purpose and means". The ultimate purpose is examined repeatedly based on the solutions from view point of the relation of "purpose and means", and finally defined. Next the cause of problems is defined from view point of the relation of "results and cause". The source of the problems is examined repeatedly from view point of the relation of "results and cause", and defined.