I am trying to make sense of these articles http://info.kubotek3d.com/3D-Engine...ubotek-Blog/?Tag=Direct CAD vs Parametric CAD and http://en.wikipedia.org/wiki/Explicit_modeling . To me this sounds like "if using parametric relations is too complex, let's stop using them and just hardcode every dimension" i.e. I don't understand why these opponents of parametric modeling cannot model in SolidWorks without specifying any relationships between parts, without using any special purpose CAD tool. Am I correct in the supposition that this is just marketing bullshit around a package with fewer features (and perhaps cost-effective low price)? Or are they in fact correct in that there are some "negative" inherent aspects of parametric modeling engine that their tools avoid?