Idea sketch advantage

The idea sketch is not so much a predictive tool, of what is to come, but rather a tool for keeping track of ideas, which can be fast moving, ambiguous or volatile. Although designer sketches are commonly annotated, the idea sketch is essentially a pictorial expression of an idea, as words alone rarely convey design ideas, or fully capture the intent of the designer. Moreover, in recording ideas through sketching the designer gains a better understanding of the task in hand, which in turn help progress the idea towards realisation.