The automation concept is being applied to many areas as the automation system in the manufacturing field works more efficiently. Automation of the design process is also very important for the reduction of the entire engineering cost, and can be achieved by an excellent design process and software development. Design axioms have been announced as a general theoretical framework for all design fields. Application of the design axioms is investigated, and automation is obtained by computer programs. The design process can be analyzed and newly defined to satisfy the axioms. A software system can be designed according to the newly defined design process. In this research, a conventional design process for a TV glass design has been improved by an axiomatic approach, and a software system is designed for the automation of the design process. It is found that the conventional process is coupled, and the coupling causes inefficiencies. A new process is established by the application of axioms. A software design is conducted based on the new process and software development is carried out according to the software design. The developed software is exploited well in the real design.
Axiomatic Design is becoming a preferred system design process tool for insuring the quality and efficiency of design processes for products and services. One aspect of Axiomatic Design is modeling and analyzing the functional independence of proposed solutions. Axiomatic Design provides for comparing and ranking solutions by three categories of functional coupling: Uncoupled, Decoupled and Coupled (1). However, given two potential solutions within the same functional coupling category, Axiomatic Design technology cannot further rank these solutions without additional information. This paper proposes that the degree of functional coupling can be assessed to provide further discrimination between solutions within the same coupling category. Using complexity concepts, this paper proposes two additional metrics, the Independence Priority Number (IPN) and the Independence Measure (IM) to further rank the potential robustness of alternative solutions using the Independence Axiom of the Axiomatic Design process. With IPN and IM metrics, design professionals can better assess the functional robustness of their proposal at the earliest phase of design, conceptual design synthesis.
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