Process Models in Design and Development

Methodology

We began with the organising framework first published by Wynn and Clarkson and subsequently expanded by Wynn. We sought to substantially improve comprehensiveness of the framework and to complement it with research insight developed since these earlier publications. Identification of models to include in the updated framework began with study of earlier literature reviews. Original sources mentioned in these reviews were considered, and research journals were also consulted to find additional recent publications. Bibliographies and Internet search were used to progressively identify further relevant sources. This yielded a large number of models which were filtered according to the criteria of Sect. 1.2.

The framework described by Wynn was expanded and iteratively revised as relevant literature was digested. Our main consideration was to find a way to conceptualise, articulate, and visualise the relationships between diverse models while also allowing a relatively linear exposition. This led to a new framework having substantially different form and significantly expanded coverage to the original.