Design representation domain

Design representation space is an organized collection of attributes and their feasible values, which is necessary and sufficient to describe all known designs and has a potential for finding many new and unknown designs. It represents the State of the Art of knowledge in the problem domain. 

Design representations have been classified systematically by Bell and Newell [4] and Gajski and Kuhn [28], among others. Classifications commonly involve two orthogonal axes the level of abstraction and the domain. Figure 1 shows some commonly accepted levels and domains this is a tabular version of the well-known Y-chart [28]. 

A model of design representation with three domains of description (Behavioral, Structural, and Physical) and multiple levels of abstraction. 

Figure 2-1. The Workbench Model of Design Representation 2.1.1 Domains of Representation...

Some of the product names, patents and registered designs referred to in this book are in fact registered trademarks or proprietary names even though specific reference to this fact is not always made in the text. Therefore, the appearance of a name without designation as proprietary is not to be construed as a representation by the publisher that it is in the public domain. 

Fig. 5. Schematic representation of the collagen IV molecule, which consists of two al(IV) chains and one a2(IV) chain. The non-triple-helical interruptions of the triple helix are indicated by black bars. The cysteine residues (C) and lysine or hydroxylysine (K) residues putatively involved in intra- or intermolecular bonds are shown. CHO designates a N-giycosidically bound oligosaccharide chain. The subscript numerals indicate the number of residues in a distinct region, summarized for all three a-chains. P designates a main pepsin cleavage site. In interruption 13, the a2(IV) chain forms a 21-residue-long loop, stabilized by an interchain disulfide bridge. NCI, Noncollagenous domain 1 TH, triple-helical domain 7 S, carboxyl-terminal domain.

---