Capturing Quality Perceptions in the Design Rational of a Modular Product Concept

The design of a product is a process of negotiating product knowledge represented in two general forms, 1) verbal and textual statements in a “design rational” about a product and 2) models of a product using a graphical modeling languages. The objective of this process is an artifact with which a user will interact, an interaction based on the use of our senses. The problem here is that, when considering the use of computer systems to support communication during integrated product development, the rational behind a design, representing what is understood about a product lacks a quantifiable relationship to the models of a product. An approach to understanding this problem can be found in the domain of semiotic sign theory, where product synthesis in design is treated as an act of meiosis. This approach is discussed in this paper in conjunction with product structuring supported by the method, Modular Function Deployment, the result of which is presented as a portion of a general theory of synthesis called Design Semiosis.