7. The method of claim 6, wherein each description of a class includes a list of functions provided by that class, further comprising the steps of determining whether the target function is provided by said target class and if not provided, then reading said pointer to said parent class description and searching said target function in a corresponding list of functions of the parent class.
6. The method of claim 5, wherein said second computer program includes at least one child class and at least one parent class, and each description of a child class includes a pointer to a description of its parent class.