Introduction. 1: Introducing Petri nets; M. Silva. Nets and net systems. On modelling features. On net systems interpretations. Approaching concurrency qualitative problems. Qualitative analysis of net system models. Some net subclasses and their analysis. Concluding remarks. 3: Principles of system modelling; J.M. Proth. Manufacturing system modelling: basic concepts. Transportation system between two points on a shop-floor. Storage facilities. Operation modelling. Tool systems. Material-handling systems. Conclusion. 3: Synthesis for manufacturing systems integration; F. DiCesare, Mu Der Jeng. Introduction to Synthesis. Bottom-up synthesis. Top-down methods. Hybrid synthesis: combining top-down and bottom-up. Summary. 4: Performance evaluation of manufacturing systems; J.M. Proth. Introduction. Event graphs: definition and properties. Manufacturing systems working on a cyclic basis. The general case. 5: Petri nets for manufacturing information systems; G. Harhalakis, F.B. Vernadat. Introduction. Basics of manufacturing information systems. High-level Petri nets. Organization analysis and conceptual database design. Modeling, analysis and implementation of company policies. Conclusions. Index.