With the rapid development of Computer Integrated Manufacturing (CIM), Computer Aided Process Planning (CAPP) is becoming incresingly important since it plays a key role in CIM. This book systematically discusses process planning and how to implement computerized process planning systems. In essence, the aim of the book is to provide a comprehensive review of CAPP from a manufacturing engineering perspective. Strong emphasis is placed on the understanding of the fundamental principles allied with the implementation of CAPP systems. The book also provides state-of-the-art knowledge on all aspects of computerized manufacturing process planning technologies. Criteria on how to evaluate CAPP systems are also included. The book can be used as a graduate text for courses on Manufacturing Process Planning and Advanced Manufacturing Engineering. It is also eminently suitable as a reference book for guiding research activities in the area of developing CAPP systems and production integration. Production managers and manufacturing engineers will also find the book useful to update their knowledge.