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Design tool encapsulation—all problems solved?

Although a prime goal of CAD frameworks is to facilitate cost effective, efficient, and seamless incorporation of tools into design systems little support is given to tool integrators. We present a new methodology called execution protocols that allows to abstract tool integration from a particular framework or tool. The actual design step is performed by an execution protocol engine that is guided by language and communication processors generated from an abstract specification of the relevant information content of data and start-up files. The execution protocol methodology may be regarded as a natural evolutionary step from today’s wrapper encapsulation.