In an attempt to understand the underlying methods used in the creation of a design,
a great deal of research has been undertaken into the nature of the
intellectual process used by designers. What is clear is that there is
no single method or system used by all designers, nor does any one
designer appear to use any single method (Lawson, 1994). A designer uses
many methods simultaneously, directed towards solving the problem and
arriving at an acceptable solution.
The creative leap is more a process of building a bridging concept between the problem and its solution (Cross,
1996). In an observation of the design process, Cross determined that
there was an ‘apposite proposal’ from one member which grew in
acceptance by the other
participants in the group trying to resolve the design problem. Once the
basic proposal had been accepted the whole group swung behind the idea
and then put all its efforts into making it work. This is contrary to
the more conventional view of designers waiting for the blinding flash
of originality, although the apposite proposal has to be derived from
somewhere. But even this was the result of an evolutionary process.
The strategy
that appears to be used most consistently is one that focuses on
identifying several possible solutions or hypotheses. These
‘protomodels’ (March, 1976) are evaluated and each evaluation is used to
refine the proposed solution until an acceptable answer is reached. For
this to be effective the problem must be clearly stated.
