What is a "CAD Framework?"

m It represents a collection of mechanisms or facilities (programming libraries, extension languages, data management facilities, user interface facilities, etc.), at many different levels of abstraction, that are, to varying degrees, specific to the electronic CAD world. The use of those mechanisms to develop a particular CAD system, optimized for a specific set of end• user needs, is then the task of the tool developers, tool integrators, and often the end• users themselves.