There are 4 ways to describe design methods:

– you are interested in the logic of design methods: look at CK theory
– you are interested in personal and group creativity: look at psycho-ergonomic studies
– you are interested in the time sequences of activities: look at design thinking
– you are interested in the spatial and mediologic quality of design activities: look in my book!

http://www.springer.com/us/book/9783319659831

1 Logic / Expansive operation

2 Creativity / Subjective and social

3 Project / Chronology of activities

4 Composition / Space of media