The Backup And Restore Of Distribute PDM System Supporting Dynamic Modeling

The PDM is a abbreviation of the Product Data Management, The PDM is based in the technology of the software, it is the core of the product, it is a technology implement for the data process and resource integration management.Integrate the static product construct and the dynamic product designed to manage information by the PDM, The product exploitation benefit of the enterprise depended on the orderly and high speed designed. product and sales the product .but the PDM is the best way to exploit optimization management the enterprise while depend on the IT .It is the product merge of the science management contracture and the practice problem of the enterprise. PDM systems can save and offer the data information of the design and manufacture, and offer the support for the management of the product, such as the life cycle management of the product.Under market economy, the enterprises have adapted to the competition of the market environment. So the PDM has trend to the diversification. The modeling system will satisfy the demand of enterprise. The modeling system divided into the static modeling and dynamic modeling.The backup and restore system of PDM system supporting Static Modeling, as for after the first system modeling, if the modeling is not apt to the system , it is impossible to modify the modeling , else the original data will be destroy. but this problem had been resolved by the backup and restore of distribute PDM system supporting dynamic modeling.In the 1st chapter, we firstly introduce the origin and develop of the PDM system, then we give some classic define of the PDM system. Illustrate the essential meanings of the PDM system, at last we introduce the some commerce PDM system and induce the trend of the PDM system in the future.In the 2sd chapter, we analyzed the PDM system construct , at first , we expatiate some basic conception of the dynamic system , confire the three basic demand of the PDM system , (l)the system construct is extensible, (2)modeling construct, (3)the cooperation of the on-the-stage and background. and the improve on the PDM system. At the second introduce the construct of the dynamic modeling system; divide the system model by the modeling fictional the last introduce the intelligential merge logmanagement.In the 3rd chapter we discuss the model publish technology of the dynamic modeling system, when the data has modeling at first. The data of the model has some attribute . at the modeling process; the next modeling will modify the attribute of the data, because of the security of data base, before the modeling had process, the data must be backup. And publish the data model. Then illustrate the algorithms of the data transfer. at the last we illustrate the process of the data transfer and some pseudo code.In the 4th chapter, we introduce the technology of the backup and restore supporting dynamic modeling system .At first we illustrate some basic conception of the backup and restore system. Then explain the designed thermo and rule of the backup and restore, and give a construct of the system.In the 5th chapter, analysis the system based on the AVIDM and gives a example of the system.