The Research And Development Of Networked CAPP System Based On Object-Oriented Technology

The technological design is an important link in the technology preparation of manufacturing industry production process. It connects the product design and the manufacture process. The former CAPP system generally tended to excessively depends upon the person or the computer, thus the superiority of both computer and person wasn't fully displayed, also all limited under the sole network environment. In order to displays person's subjective initiative and the computer formidable memory ability well, with the support of current network technology achievement, this thesis proposed a network CAPP system which based on the object-oriented technical network. Realizes this system essential technology from following several aspects:1,the system uses the GT and the object-oriented technology to create the characteristic class, realized the components information human/machine alternately inputs and the man-machine coordination technique process design, which fully exerting the human's and the computer's advantage.2,Introduces the knowledge engineering's knowledge inference rule in the components characteristic class, analyzes the components characteristic class method and the knowledge inference mechanism reciprocity with the object-oriented technology, takes the create-pattern rule as the object class's object method set.3,Applying the LAN technology and the WAN technology to establish the application procedure server and the network server separately, realized the network CAPP system design development and the application which unifies based on three C/S structures and the B/S structure.4,Using the object-oriented technology analysis components characteristic class, carries on the characteristic class with each kind of chart of symbols the detailed classification and the analysis, and carries on the description with the object-oriented language to form the object-oriented procedure class storehouse, forms procedure code which may carry out; Using Microsoft SQL Server 2000 took the system the backstage database server, carries on the reasonable database structural design, uses the Transact-SQL language to found in the database the table and using under. NET skeleton ADO.NET carries on visit database; Finally realizes various part of contact interface design and the code design using VB.NET and ASP.NET.The QUST-CAPP system is based on the object-oriented technology, the components information by the characteristic classform existence, easy to operate and the system maintenance promotes, the network design is advantageous for between the enterprise interior and the enterprise carries on the technical information exchange, to a great extent improved the technological process design quality and the efficiency.