Data representation for serviceability design

This paper describes a data representation scheme for design for serviceability (DFS) tools. Serviceability analysis commonly occurs in the later stages of the design process when design changes are either costly or infeasible. The method of service mode analysis (SMA) focuses on service phenomena, estimates the life-cycle service cost, and relates the cost to attributes of the candidate design. We have developed a graphics-based computer tool for designers to conduct SMA on their product layout designs. The tool also employs design compatibility analysis (DCA) to assess qualitative aspects of serviceability concerns and provide the user with suggestions for design improvements. This paper gives a detailed description of the pertinent information necessary for SMA and how they are represented in the computer-aid.