analysis, a qualitative research tool, Qualrus from Ideaworks, was utilized. Itallowed coding of texts and multimedia materials (including the drawings) and provided avariety of tools in the development of theory out of data, including a concept-mapping tool.E. Results and DiscussionThe findings of the first study can be structured into two areas: (1) problem solving processesand (2) reflections and extensions of the design theory of problem solving. 1) Problem solving processes: The two projects could be broadly categorized as a designand troubleshooting problem in the process of setting up a steel mill and adjusting the steel millconfigurations for different needs. However, several aspects emerged that put the preliminarycategorization of