【摘要】 本文描述了工程数据库管理系统(EDBMS)的主要任务及其特点,分析了工程数据库系统的可靠性相关因素,提出了工程数据库管理系统对工程数据库的两种不同操作方式下系统的可靠性设计方法,重点阐述了事务管理的可靠性设计、设计版本管理及其控制的可靠性设计.更多还原

【Abstract】 The improvement of the reliability of an engineering database system (EDBS) is dealt with. The EDBMS is an important part of EDBS. The main tasks to be fulfilled by EDBMS during CAD and the effect of some factorson the reliability of EDBS are discussed. The reliability design method for EDBMS is proposed, with emphasis laid on that for transaction managementand version management.更多还原