基于分域的IT配置管理数据库信息模型

An Information Model for IT Configuration Management Database Based on Hierarchical Domain

针对信息技术(IT)基础设施库(ITIL)中缺乏配置管理数据库(CMDB)的内容定义,且共享信息数据(SID)、通用信息模型(CIM)等其他领域的模型不适用于CMDB建模的现状,分析了CMDB的需求,提出了一种适用于CMDB的基于分域的建模方法.根据此建模方法构建了1个CMDB信息模型,并定义了模型中应包含的配置项类及配置项类间的关系.该模型吸收了其他领域管理模型的可取之处,同时增加了IT服务管理(ITSM)领域特有的服务管理流程记录、生命周期状态等内容.实验证明,该CMDB信息模型可以有效地展现配置项间的关系,为ITSM流程提供重要而准确的信息,支撑配置管理功能.

The information technology （IT） infrastructure library （ITIL） does not give a compre-hensive definition of the configuration management database（CMDB）, and information models in other fields such as shared information data（SID）, common information model（CIM） are not directly applicable to build a CMDB. In this case, the main requirements of CMDB are analyzed, and a modeling method of CMDB based on hierarchical domain is presented. Thereafter, an infor- mation model for CMDB is given. In the information model, the configuration item classes and the relationships between them are identified and defined. The model extracts the merit of other models and expands some special items from ITIL （including e. g. IT service management（ITSM） processes records, life cycle status etc.）. It is proved that this information model can efficiently present relationships between configuration items, provide important and accurate information for ITSM processes, and support configuration management function.