Abstracting and formalising the design co-evolution model

Abstract Co-evolution accounts have generally been used to describe how problems and solutions both change during the design process. More generally, can be considered as analytic categories, where is seen occur within categories or across categories. There are more of interest than just solutions, for example, participants in a process (such members team different teams) defined by ontologies function-behaviour-structure concept-knowledge). In this paper, we consider co-evolution (not solutions), focussing on changes category originate either from inside outside that category. We then illustrate approach applying it data single session using three systems categorisation (problems designers function, behaviour structure). This allows us represent reciprocal influence between these while common notation graphing quantitative data. Our demonstrates research traditions currently distinct each other co-evolution, collaboration function-behaviour-structure) connected approach.