Computerized machinability data base systems are now becoming essential for automating process planning and programming in computer integrated manufacturing sytems. Non-conventional machining plays a significant role in modern high technology engineering processing and contributes to accuracy and component quality. Such processes are extensively used in the jet engine manufacturing and in machining turbine blades and dies. The obective of this work is to present a scientific approach for the application of integrated machining data selection systems to non-conventional machining processes namely, electrochemical (ECM) and electric discharge machining (EDM). The paper presents the choice and use of integrated machining data selection modelling systems with the ultimate goal to help manufacturers, workshop engineers and researchers to achieve optimum cutting conditions. The beneficial advantages of such work include efficient process planning under increased productivity conditions.