StructurePreservingTransformations (ThoughtStorms)

ChristopherAlexander says growing by structure preserving transformations is what produces OrganicArchitecture with TheQualityWithoutAName :

ChristopherAlexander making a plea for organic transformations pretty much ties patterns, OrganicArchitecture, and incremental development. (As does HowBuildingsLearn)

Compare :

** in fact see how this fits with the whole ExtremeProgramming thing too. I wonder how explicitly that community / culture was influenced by this appeal (JimCoplien a key connection here?)