Sy. Han et al., Multi-dimensional design process management by extended product modeling for concurrent process engineering, KOR J CHEM, 18(5), 2001, pp. 612-622
Conventional product and process models have focused on static features. Th
at means product models are mainly based on structural decomposition of pro
ducts, and process models are also often described by activity decompositio
n such as work breakdown structure. From the view of design process managem
ent, it is difficult to describe dynamic features of design processes appro
priately through conventional methodologies. In this paper, a multidimensio
nal approach for design process management was explored to manifest charact
eristics of design processes for chemical plant design. Parallelized design
process for concurrent process engineering should be managed by two dimens
ional design activity flows. The process management makes it possible to gu
ide progress of design processes in a helix structure by horizontal and ver
tical activity control simultaneously. They stand for teleological and caus
al relation between design activities, respectively. That can be achieved b
ased on an extended product model, which represents various design perspect
ives explicitly from a conventional design activity model. The extended pro
duct model is composed of product data, design activities, and activity dri
vers. Dynamic features of the extended product model are expressed by an ac
tivity chain model. These concepts will support the realization of concurre
nt process engineering for chemical plant design in the sense that they pro
vide design process management strategies.