Moving objectdatabases have received considerable attention recently. Previous work has concentrated mainly on modeling and indexing problems, as well as query selectivity estimation. Here we introduce a novel proble...
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Feature technique and expert system are two popular research fields in mechanical design and CAD. This paper elucidates how to adapt artificial intelligence and object-oriented thoughts to develop an information syste...
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ISBN:
(纸本)7800033813
Feature technique and expert system are two popular research fields in mechanical design and CAD. This paper elucidates how to adapt artificial intelligence and object-oriented thoughts to develop an information system of product design and CAD. For this purpose, it is analyzed how to build a feature library that can be called for functional modeling design of the parts and a knowledge base that is an object-oriented knowledge structure. To solve the difficulty of message linking in an object-oriented system or of frame linking in a frame system, it put forward a new method of object-oriented inheritable assembling so that the assembly of class architecture is as general, simple and flexible as that of part's sub-structures. FFPDES has been developed to design five kinds of heavy and complex parts of machine tools in some factory.
Classical data models like the relational data models have proven to have limitations in modeling spatial data in many aspects. In the latest computer technology, object-oriented database technology extends support fo...
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To shorter product development time, this paper proposed an approach to developing feature based parametric product modeling systems which are suitable for integrated engineering design in CIMS environment. The archit...
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ISBN:
(纸本)0780331044
To shorter product development time, this paper proposed an approach to developing feature based parametric product modeling systems which are suitable for integrated engineering design in CIMS environment. The architecture of ZD-MCADII and the characteristics of its each module are introduced in detail. ZD-MCADII's product data is managed by an object-oriented database management system OSCAR, and the product model is built according to the standard STEP. For the product design is established on a unified product model, all product data are globally associated in ZD-MCADII. ZD-MCADII provides various design features to facilitate the product design, and supports the integrity of CAD, CAPP and CAM.
In this paper an approach of objectoriented database for an open energy management system is introduced. The requirement of an open system and the merit of the objectoriented programming technique are briefly descri...
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ISBN:
(纸本)780003285X
In this paper an approach of objectoriented database for an open energy management system is introduced. The requirement of an open system and the merit of the objectoriented programming technique are briefly described. An example of objectoriented database design is proposed.
The design of the new model for the full transformation of the spatial data from relational database to object-oriented database is performed in objectoriented environment using the object-oriented analysis and desig...
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The representation scheme for models is a key issue in decision support system(DSS). First,various representation scheme for models is outlined. Second, a new method of representation for models, which is based on aut...
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ISBN:
(纸本)0780342534
The representation scheme for models is a key issue in decision support system(DSS). First,various representation scheme for models is outlined. Second, a new method of representation for models, which is based on automata, is presented. Third, a object-oriented model management system has been realized.
The integration of the non-traditional database systems, such as object-oriented database, multimedia database and file system, makes the information integration technique face with the new challenge. This paper propo...
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ISBN:
(纸本)0780342534
The integration of the non-traditional database systems, such as object-oriented database, multimedia database and file system, makes the information integration technique face with the new challenge. This paper proposes an object-wrapping technique to the development of integrated system. This object-wrapping technique efficiently makes use of the object-oriented technology to support the schema integration mechanism, in particular to be capable of integrating the file system in which the schema doesn't exist. The feasibility of this technique is demonstrated by the development of the prototype system CIM-IDS. This paper will introduce the object-wrapping technique in CIM-IDS and the design of its core part-object wrapper in detail.
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