Abstract: A data processing method and a computer based data processing system for use in providing, or optimising, an industrial procedure for generating a product. The system comprising digital processing means, and digital storage means. The storage means having a database stored therein comprising (a) data defining generic product descriptions in terms of physical and/or functional elements and associated properties; b) data defined a plurality of generic process descriptions in terms of process activities, activity sequence, and associated process capabilities, at least one of said generic process descriptions including an iterative set of process activities, and; c) data defining rules relating to a) and b). The method comprising providing the system with specific product information for the product.