COMPUTER-AIDED DESIGN OF SYSTEMS

A system is designed by a computer performed method using object oriented programming in which the manipulative programs are linked to the data records which represent the various elements in the system. The data records are linked by pointers in a hierarchy so that operations proceed from link to link without the need for interpreting character string commands. Only the highest level commands must be interpreted in a time consuming manner. Thereafter, the program proceeds quickly from linked data record to linked data record.