International Organization for Standardization

Information technology - Multimedia framework (MPEG-21) - Part 20: Contract Expression Language - First Edition
 N ISO/IEC 21000-20

Annotation

This part of ISO/IEC 21000 specifies a language for representing contracts in the Multimedia Framework formed for the transaction of MPEG-21 Digital Items or services related to the MPEG-21 Framework.

The Contract Expression Language (CEL) aims at digitally representing the agreements made in an environment of ISO/IEC 21000 use. These contracts include those about both transactions of content packed as Digital Items as well as services provided around this content.

The range of contracts under scope are:

- contracts about transactions of content as MPEG-21 Digital Items;

- contracts about the provision of MPEG-21-based services, i.e. delivery, identification, encryption and search.

The aspects represented by CEL contracts include:

- the textual clauses, in natural language as they are in the narrative contract, duly structured;

- the operative clauses, as computer language expressions.

Автоматический перевод:

Информационные технологии - Мультимедийная платформа (MPEG 21) - Часть 20: Язык Выражения Контракта - Первый Выпуск

Эта часть ISO/IEC 21000 указывает язык для представления договоров в Мультимедийной Платформе, сформированной для транзакции MPEG 21 Цифровые Элементы или сервисы, связанные с платформой MPEG 21.