PEPDA的数据组织

ＰＥＰＤＡ是国家８６３项目所支持的石油工程个人数据助理系列产品，专业技术资料丰富，数据量大，不具备一般个人计算机的操作系统等软件支撑环境和磁盘等硬件环境。采用文件形式组织和管理数据是ＰＥＰＤＡ必须选择的方式。根据ＰＥＰＤＡ存储器构成和存储特性，讨论ＰＥＰＤＡ的数据逻辑结构与石油工程技术人员知识体系结构的对应关系，数据文件的存储格式，数据库数据的组织结构及其操作，操作规程数据的组织与管理，文件的物理组织与管理方法，以及相应的实现技术和访问效率。

Data Organization of PEPDA

PEPDA ( Petroleum Engineering Personal Data Assistance ) is a series of products sponsored by National Project 863. PEPDA is featured by a storage of abundant technical information and the ability to handle large quantities of data. In the products there are not any software and hardware supporting environments, such as operation system and disk system which are necessary software and hardware installed in common personal computers. Instead, PEPDA chooses the file form to organize and manage its data. Based on the structure and property of PEPDA memory, this paper discusses the corresponding relationship between the logic structure of data and the knowledge structure of petroleum engineers, the store pattern of data file, the organizing structure and operation of database, the organization and management of data of operating rules, the physical organization and management of files, and the corresponding realization technology and access efficiency of PEPDA.