ISO/IEC 16500关于“轮廓:技术领域”的本部分描述了系统功能和DAVIC 与ISO/IEC TR 165001中定义的轮廓相关的工具。ISO/IEC 16500本部分的目标是指导 ISO/IEC 16500中与各系统实施相关的部分的实施者 轮廓和显示各种工具之间的关系。本规范的另一个目标是说明 必须实现特定的DAVIC工具，以实现可互操作的系统组件。 由于系统组件成本和服务收入之间的潜在权衡可能会有很大差异，例如:。 g、 ，由 地理位置和时间，这种权衡被视为不在DAVIC的范围内，因此更为合理 该工具集的详细“微观分析”需要在参与该项目的各方之间达成一致 系统的实现。一种机顶盒，可与内部的增强型广播服务等完全互操作 特定的地理区域，可以通过实现增强型应用程序使用的所有定义的DAVIC工具来设计 那个地区的广播服务。 为了协助上述微轮廓测量活动，DAVIC工具与特定轮廓相关 它们的结构如下所示。DAVIC工具的集合（ISO/IEC 16500的子条款） 共同实现完整的系统功能（例如，同步多媒体的可靠传输 信息）分组在一起。该组被确定为“系统功能”。对于这些群体中的每一个 给出了全面的信息性描述，并给出了一个表格，详细列出了所包含的DAVIC工具。为了工具 如果适用，则说明依赖关系。来自用户的功能需求&；市场领域 轮廓（见ISO/IEC TR 16501）完全映射到上述系统功能列表。

This part of ISO/IEC 16500 on "Contours: Technology Domain" describes the system functions and DAVIC tools relevant to the Contours defined in ISO/IEC TR 165001. A goal of this part of ISO/IEC 16500 is to guide implementers to those parts of ISO/IEC 16500 which are relevant for the implementation of the systems in each Contour and to show the relation between the various tools. Another goal of this specification is to state which specific DAVIC tools have to be implemented to realize interoperable system components. As the underlying trade-off between system component cost and service revenue may vary considerably, e.g., by geographical location and time, this trade-off is deemed to be outside of the scope of DAVIC and hence a more detailed "micro profiling" of the tool set needs to be agreed upon between the various parties involved with the realization of a system. An STB that is fully interoperable with, for example, Enhanced Broadcast Services within a certain geographical area, can be designed by implementing all defined DAVIC tools used by the Enhanced Broadcast Services in that area. In order to assist the above mentioned micro-profiling activity the DAVIC tools relevant to a specific Contour have been structured in the following way. A collection of DAVIC tools (sub/clauses of ISO/IEC 16500) which together realize a complete system function (e.g., the reliable transmission of synchronized multimedia information) are grouped together. The group is identified as "system function". For each of these groups an overall informative description is given and a table listing in detail the included DAVIC tools. For the tools dependencies are indicated if applicable. The functional requirements derived from the User & Market Domain of a contour (see ISO/IEC TR 16501) are fully mapped to the above list of system functions.