標準號：ISO/IEC 16500-3-1999
中文標準名稱：信息技術 通用數字音頻-可視系統 第3部分:外形:技術域
英文標準名稱：Information technology - Generic digital audio-visual systems - Part 3: Contours: Technology domain
標準類型：L81
發(fā)布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：L81
國際標準分類號：33.160.60;35.040
適用范圍：This part of ISO/IEC 16500 on “Contours: Technology Domain” describes the system functions and DAVICtools relevant to the Contours defined in ISO/IEC TR 165001. A goal of this part of ISO/IEC 16500 is to guideimplementers to those parts of ISO/IEC 16500 which are relevant for the implementation of the systems in eachContour and to show the relation between the various tools. Another goal of this specification is to state whichspecific 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., bygeographical location and time, this trade-off is deemed to be outside of the scope of DAVIC and hence a moredetailed “micro profiling” of the tool set needs to be agreed upon between the various parties involved with therealization of a system. An STB that is fully interoperable with, for example, Enhanced Broadcast Services withina certain geographical area, can be designed by implementing all defined DAVIC tools used by the EnhancedBroadcast Services in that area.In order to assist the above mentioned micro-profiling activity the DAVIC tools relevant to a specific Contourhave been structured in the following way. A collection of DAVIC tools (sub/clauses of ISO/IEC 16500) whichtogether realize a complete system function (e.g., the reliable transmission of synchronized multimediainformation) are grouped together. The group is identified as “system function”. For each of these groups anoverall informative description is given and a table listing in detail the included DAVIC tools. For the toolsdependencies are indicated if applicable. The functional requirements derived from the User & Market Domain ofa contour (see ISO/IEC TR 16501) are fully mapped to the above list of system functions.