| 术语 | 描述 |
|---|---|
| 聚合定义文档 aggregation definition document | A document that lists and structures the digital resources of an aggregation. See also: digital resource; resource aggregation. |
| 聚合格式 aggregation format | A documented method of aggregating digital resources into a complex object that can be exchanged among systems. An aggregation format may be defined by a formal specification or standard, but may also be informal. |
| 聚合实例 aggregation instance | An instantiation of an aggregation definition document that includes all data necessary to construct a complex object including any references to external data. Multiple aggregation instances, each of which conforms to a different aggregation format, may exist for the same complex object. |
| 绑定 binding | The process that binds a model to a data structure. For example, it can refer to the binding of a conceptual model to the Web Ontology Language (OWL) ontology language. |
| 类 class | A category of items that share one or more common characteristics. Characteristics can be described informally in a scope note or formally as properties explicitly formulated in logical terms. |
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