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A new concept for sequential form feature identification and elimination is presented. A set of domain-specific feature techniques are developed based on input from neutral formats of CAD-files with no explicit feature information. The method takes its inspiration from traditional process planning using a backward process planning concept. V arlo us aspects of feature related CNC-patb generation is treated and some physical test parts are presented. For the selected subset of relatively simple, but widely used geometry's, the BCAM system presents an effective method for automatic generation of CNC-code suitable for a 3D milling machine. Future enhancements and developments are discussed. R. Soenen et al. (eds.

Typical software development for manufacturing control is done either by specialists with considerable real-time programming experience or done by the adaptation of standard software packages for manufacturing control. This paper covers the experiences from the application of two software packages for §upervisory £ontrol And nata Acquisition for the control of a chemical plant. The software packages are: "Fix" from Intellution and "InTouch" from Wonderware. Emphasis is placed on the practical software design cycle and the typical changes imposed on this by the application of the standard packages. It is argued that the SCADA and the PLC software must be developed in relation to a common specification for both applications although the development is done in two very different environments. Comparison of the software packages in relation to the process control specifications and the development effort is given. Finally the application possibilities for these packages in relation to discrete parts manufacturing are evaluated based on the internal structure of the packages and the structural demands in this area.