Technical systems support
Representation has high priority if the solution process is to be successful. This is related to the technical means used to record the results of thinking, even if they are preliminary and transient , to allow interaction between the mental and external representations, see chapter 2. These products assist in modeling TS(s), see figure 17.1, producing, storing and retrieving drawings and other records, and providing support. Computers are a major factor in design engineering.