I'm now investigating the possibilities of subdivision surfaces and procedural modelling by means of a commercial application (the Foundry Modo). As far as I study and train I find the need of a theoretical framework and general methodologies in order to understand how to "locate" this representation/designing technique in comaprison to BIM parametric approach and Grasshopper visual peogramming approach. Have you any bibliographic hint to suggest, or personal research experience in such matters? Thanks!