本文档是开放式应用程序编程接口（API）第3阶段规范的第7部分 服务访问（OSA）。OSA规范定义了一种体系结构，使应用程序开发人员能够通过开放的标准化接口（即OSA API）使用网络功能。本文件规定了接口的移动服务能力（SCF）方面。这里定义了移动性SCF的所有方面，它们是:序列图。类图。 接口规范和详细的方法说明。状态转换图。数据定义。接口的IDL描述。完成这项任务的过程是通过使用统一建模语言（UML）描述的对象建模技术。

The present document is part 7 of the Stage 3 specification for an Application Programming Interface (API) for Open Service Access (OSA).The OSA specifications define an architecture that enables application developers to make use of network functionality through an open standardised interface, i.e. the OSA APIs.The present document specifies the Mobility Service Capability Feature (SCF) aspects of the interface. All aspects of the Mobility SCF are defined here, these being:Sequence Diagrams.Class Diagrams.Interface specification plus detailed method descriptions.State Transition diagrams.Data Definitions.IDL Description of the interfaces.The process by which this task is accomplished is through the use of object modelling techniques described by the Unified Modelling Language (UML).