Reiner Anderl The Advanced Modelling part of the CAD*I project aimed at the development of a new generation of modelling techniques as a basic functionality of future CAD/CAM systems. The methodology and concepts for advanced modelling techniques, their availability in the communication interface of a CAD/CAM system and their influence on internal interfaces in the software architecture of a CAD/CAM system are fundamental results of advanced modelling work. These results form the basis for the development of a new generation of CAD/CAM systems which are called product modelling systems. CAD/CAM systems today mainly support the geometric description of a technical part or its description as a technical drawing. Advanced geometric modelling capabilities deal with parametric design functions embedded into CAD/CAM systems. However, development strategies for future CAD/CAM systems are directed toward the following: 1. The development of product modelling systems and 2. the development of integrated systems based on CAD, CAP (Computer Aided Planning), CAM and other CIM (Computer Integrated Manu facturing) functionalities. CAD*I Project Overview.- 1. Introduction.- 2. Methodology of Design.- 2.1 General Problem Solving Principles.- 2.2 Derivation of the Model Space of Design.- 3. Overview of the Concept for Advanced Modelling.- 3.1 The Integrated Product Model.- 3.2 Modelling Levels.- 3.3 General Principles of Associative Modelling.- 4. Geometric-Associative Modelling.- 4.1 Subject of Specification.- 4.2 Geometric-Associative Modelling Approaches.- 4.3 System Specification of the "Handsketch" Input System (HIS).- 5. Technical-Associative Modelling.- 5.1 State of the Art.- 5.2 The DTT-Modeller (Design by Technical Terms).- 5.3 Command Language for Design.- 6. Design by Features.- 7. Internal Interfaces.- 7.1 The Model Manipulation Interface.- References.
