As I said in an earlier message:
RickJB writes:
I would argue that it is necessary to separate the evolution of a
design concept from its
produced design.
Design concepts can be said to evolve, whereas as the
produced design is designed outright.
In this sense each
produced design is a "hard copy" of a
design concept made at a particular point in its evolution.
Ideas can be said to evolve,
produced designs can be regarded as "hard copies" made along the way.