本标准定义了一个概念模型，用于解释学习、教育和培训资源的数字集合的外部化表示。概念模型定义了一组 概念以及它们之间的关系，并被表示为一种形式本体。数字资源的内部组成和使用没有规定，资源聚合的处理方法也没有规定。

This standard defines a conceptual model for interpreting externalized representations of digital aggregations of resources for learning, education, and training. The conceptual model defines a set of concepts and the relationships among them and is expressed as a formal ontology. Internal compositions and uses of digital resources are not specified nor are processing methods for resource aggregations.