AEDMS工程文件编号的生成算法

AEDMS Engineering Document Number Generation Algorithm

工程文件编号生成算法是国航工程文件管理系统(AEDMS)开发的难点。提出的工程文件编号生成算法包括工程文件流水号和改版号的指派算法与自动编排算法。前者解决了新旧系统工程文件编号的兼容问题;后者是一种新的基于关系代数的自动编号算法,其利用元组序号,具有紧凑简单、可靠性好、可维护性好、执行效率高、适用面广的特点。实算结果和AEDMS运行实践表明,此工程文件编号生成算法是可行的。

Engineering Document Number（EDN） Generation Algorithm（EDNGA） is one of the difficulties in the development of Air China Engineering Document Management System （AEDMS） EDNGA proposed in this paper includes the Assignment Algorithm（AA） and Auto Arrangement Algorithm（AAA） of the flow number and revises number. AA solves the EDN compatibility problem between the new AEDMS and the old one; AAA bases on relation algebra and uses the tuple index ingeniously, its compact, highly reliable, highly maintainable, highly efficient and widely applicable. Computational results and AEDMS demonstrate that EDNGA is fairly efficient and reliable.