This paper develops the concept and structure of an expert system for yarn engineering. It describes the process of yarn engineering, in addition to the structure, components and functional features of a yarn engineering expert system. To reduce the complexity of the expert system it needs to be broken down into a number of sub-expert systems that enable the determination of fibre specifications, yarn type, yarn specification, twist, draft sizing and yarn performance under various spinning systems. These sub-expert systems interact and exchange information to produce a seemingly whole functionality.
Key Words: Expert system concept, Yarn engineering, Spinning
