Studied the collaborative design function request, the overall concept with emphasis, product management, instance manage, the conflict restraint and so on key technologies, the development collaborative design system has provided the new working platform for the enterprise, reduced development cycle, obtained the good economic efficiency.

On the basis of those key problems, the application of case based reasoning in resource requirements was discussed and the basic structure of the master production scheduling system was proposed.

This paper researches on the realization and application of case based reasoning and provides an example.

Application of case-based reasoning in injection mould for determining manufacture time quota;

Real-time target value determination for the unburned carbon mass fraction in fly ash based on case-based reasoning technology;

According to the characteristics of the region grid,this paper applies the CBR(case-based reasoning) methods on the expert system of dispatching operation order,which can overcome the disadvantages of the traditional RBR(rule-based reasoning) system,such as complicated programming and difficulty to extend the knowledge base.

Rough set-based conflict resolution case reasoning in collaborative design;

Based on this model, intelligent technologies such as case reasoning, neural network and blackboard reasoning were integrated to deal with specific requirements from different fields.

Combined with the progress in knowledge based engineering(KBE) in design and data diagram of the designing mold base, the basic frame of KBE system of mold base design was presented and its key technologies (knowledge processing, case reasoning and neural network) were researched in detail.