ISO/IEC 15476-4:20 05解释了数据模型主题领域。CDIF语义元模型用于确保使用CDIF进行通信的工具所持有的信息以约定的含义进行传输。它涵盖了表达实体-关系-属性建模和逻辑数据库设计概念所需的信息。 ISO/IEC 15476-4:20 05旨在供任何希望了解和/或使用CDIF的人使用。它提供了CDIF语义元模型的单个主题区域的定义。它适用于: 那些评估CDIF的人，那些希望了解CDIF转让的原则和概念的人，以及那些发展中的进口商和出口商。

ISO/IEC 15476-4:2005 explains the Data models subject area. The CDIF semantic metamodel is used to ensure that the information held by tools communicating using CDIF is transferred with an agreed meaning. It covers the information required to express Entity-Relationship-Attribute Modelling and Logical Database Design concepts. ISO/IEC 15476-4:2005 is intended to be used by anyone wishing to understand and/or use CDIF. It provides a definition of a single subject area of the CDIF semantic metamodel. It is suitable for:

• Those evaluating CDIF,
• Those who wish to understand the principles and concepts of a CDIF transfer, and
• Those developing importers and exporters.