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authors Wade, John W. and De Dios, Bettina
year 1990
title Typification and Evaluation in Design
source February, 1990. [18] p. : ill. includes bibliography
summary A number of writers have characterized the design process as an interaction between broad categories of design knowledge and their application in unique situations. The notion of 'type' summarizes this interaction. A typological view of design suggests that a designer keys knowledge from specific design situations to generic versions of those situations; it suggests that a designer invokes those generic situations in order to deal with current specific situations. If this view of design is correct, then a number of interesting subsidiary processes occur. The most important of these is in the classic interplay between classification and evaluation. In a strong sense, when a designer has built up a type, every member of that type has been declared a 'good' member of that type. If members of that type are later invoked as exemplars, they have been preevaluated by being classed with that group. This suggests that the notion of type extends beyond simple descriptions of objects that are members of the type to requirements that those objects were able to satisfy, and to conditions within which those satisfactions obtained. The authors examine different possible expressions of a type in (1) generic objects; (2) prototypical objects; (3) exemplar objects; and (4) symbols for object types. It has been examined how design appears to use different levels of specificity. These issues are of interest to the authors because they are engaged in the structuring of a computer- based design support system that will use a wide variety of information bearing components that are generic in character. They are imbedded within a typologically structured system. The overall library system and the typology that it will use is described briefly
keywords design process, prototypes, classification
series CADline
references Content-type: text/plain
last changed 2003/06/02 11:58
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