Abstract :
One of the major aims of design theory is to construct explanatory models that further enhance understanding of design as a cognitive act. The search for such models raises the question as to whether there are, in fact, laws of design that are valid across the `sciences of the artificial´. This paper, presents two such qualitative laws. The ideas embedded in these laws have long been part of the `folk theory´ of design. Their main significance as stated here lies in the fact that the laws have been derived systematically from, and are supported by, well known knowledge level constructs; and in the conciseness, unambiguity and testability of their presentation
