Attributes are used as the collection point for the attributes that describe an entity, such as a book, person, category and so forth.
In addition the system that stores and provides access to the entity descriptions can also be regarded as an overlying parent attribute. Universal attributes can then be inherited from this top-most level. When entity descriptions are recorded in a document, which is the case in the examples listed here, universal attributes applying to all entity descriptions in the document can be set at the top level in the document. For example :
**l: english IR: title: This is a book ## English is set at a higher level title: Celui ci est une livre **l: french
The use of an attribute to define a service implies that the entities themselves are attributes of the service: books in a library, recordings in a sound archive, pictures in an image library.
The identification of attributes that are collection points is set by the application. In this description the attributes are similar to those that have been identified as classes in metadata definitions such as RDA. This purely for illustration of the approach.The collection point attributes are :