Baseline is an important concept in software configuration management. There are many different definitions of baseline,which is a vague concept of engineering. Each baseline definition reflects the connotation of the baseline from a profile,only needing to analyze the difference and inner link for various definitions between the baseline. In this paper,combined with the basic concept of configuration management,five different baseline definitions are summarized respectively. It describes the baseline level,baseline phase of software pro-ject,and baseline levels and granularity in implementation phase. Then it introduces the baseline management process and the advantages for baseline management in software development. Through a variety of related concepts of the baseline,the relationship between the con-cept of baseline and inner link is clarified. It focuses on the baseline related technical problems,which contributes to application and man-agement of the baseline. Practice shows that to understand the connotation of the concept of baseline in depth helps to grasp the difference and common of software configuration management tools,doing a good job of software configuration management in a variety of circum-stances.%基线是软件配置管理中的一个重要概念。基线有多种不同的定义，是一个比较模糊的工程概念。每种基线定义只反映了基线内涵的某个侧面，需要分析研究各种基线定义之间的区别和内在联系。文中结合配置管理的基本概念，分别归纳并给出了五种不同的基线定义；叙述了基线的层级、软件项目的阶段基线、实现阶段基线的水平等级和粒度；之后介绍了基线管理的过程和基线管理在软件开发中的优点。通过叙述各种基线的相关概念，理清了各种基线概念之间的关系和内在联系。集中介绍了基线相关的技术问题，有助于更好地应用和管理基线。工作实践表明，深入理解基线概念的内涵有助于掌握各种软件配置管理工具的区别和共同之处，从而在各种环境下做好软件开发的配置管理工作。
展开▼
