1范围1。1目录提供OSI应用程序、OSI管理过程、其他OSI层实体和电信服务所需的目录功能。它提供的功能包括“用户友好命名”，即可以通过适合人类用户引用的名称来引用对象（尽管并非所有对象都需要用户友好的名称）；以及“名称到地址映射”，它允许OBJCT与其位置之间的绑定是动态的。例如，后一种功能允许OSI网络进行“自我配置”，即添加、删除和更改对象位置不会影响OSI网络的运行。1.2目录不打算成为一个通用数据库系统，尽管它可能建立在这样的系统上。例如，我们假设，与通信目录的典型情况一样，“查询”的频率比更新的频率要高得多。 更新速度预计将由人员和组织的动态控制，而不是网络的动态。也不需要即时的全局更新承诺:在临时条件下，相同信息的旧版本和新版本都可用，这是完全可以接受的。1.3目录的一个特点是，除不同的访问权限或未分页的更新外，目录查询的结果将不依赖于查询者的id实体或位置。该特性使得目录不适合某些电信应用，例如某些类型的路由。

1Scope1.1The Directory provides the directory capabilities required by OSI applications, OSI management processes, other OSI layer entities, and telecommunications services. Among the capabilities which it provides are those of 'user-friendly naming', whereby objects can be referred to by names which are suitable for citing by human users (though not all objects need have user-friendly names); and 'name-to-address mapping' which allows the binding between objcts and their locations to be dynamic. The latter capability allows OSI networks, for example, to be 'self-configuring' in the sense that addition, removal and the changes of object location do not affect OSI network operation.1.2The Directory is not intended to be a general-purpose database system, although it may be built on such systems. It is assumed, for instance, that, as is typical with communications directories, there is a considerably higher frequency of 'queri es' than of updates. The rate of updates is expected to be governed by the dynamics of people and organizations, rather than, for example, the dynamics of networks. There is also no need for instantaneous global commitment of updates: transient conditions where both old and new versions of the same information are available, are quite acceptable.1.3It is a characteristic of the Directory that, except as a consequence of differing access rights or unpropagated updates, the results of directory queries will not be dependent on the id entity or location of the enquirer. This characteristic renders the Directory unsuitable for some telecommunications applications, for example some types of routing.