4.1 Cross-System Cohesiveness4.1.1 Classification in the Overall System4.1.2 General and Complete Data Model4.1.3 Origins of Master Data4.2 Data Model for Product Definition4.2.1 Relevant Concepts4.2.2 The Operation4.2.3 The Work Plan4.2.4 The Parts List4.2.5 Change Management and Product History4.3 Data Model for Resource Management4.3.1 Description of Production Environment4.3.2 Production Personnel4.3.3 Operating Resources4.3.4 Materials and Preliminary Products4.3.5 Information and Documents4.4 System and Auxiliary Data4.5 Order Fulfillment Data4.5.1 Orders4.5.2 Production Data, Operating Data, and Machine Data4.5.3 Derived Performance Data and Figures4.6 Summary