Improve the definition of the cfClass entity

[jdvorak001]

No description provided.

[jdvorak001]

We start from:

Classification: a tag that can be placed on objects.
In CERIF, the concept of Class is physically (cfClass) and logically (cfClassification) defined as an entity in an ERM, represented by attributes and through maintaining relationships with other entities: classes, multilingual descriptions, multilingual examples, multilingual definitions, multilingual terms, and all so-called CERIF link entities.

A classification in the optimum case is uniquely identified through a uuid with the cfClassificationIdentifier (cfClassId) attribute (CERIF 1.3 provides a uuid for every specified term published at the euroCRIS website). A classification (uuid) is always assigned to at least one classification scheme (cfClassificationScheme or cfClassScheme) through the cfClassificationSchemeIdentifier (cfClassSchemeId) which is itself a uuid.

[jdvorak001]

A first approximation:

Classification: an entry in the containing Classification Scheme.

In CERIF a Classification usually specifies the type (e.g. "Higher Education Institution") or status (e.g. "Approved") of an object, or some other category – most notably a subject heading (e.g. "Astrophysics").
Some classifications specify the type of relationship between two objects (e.g. "Author" between a Person and a Publication).

[lremy]

We can keep the description part first, and then specify that they are organised into Classification Schemes.

In CERIF a Classification usually specifies the type (e.g. "Higher Education Institution") or status (e.g. "Approved") of an object, or some other category – most notably a subject heading (e.g. "Astrophysics").
Other Classification specify the type of relationship between two objects (e.g. "Author" between a Person and a Publication).

Classifications are organised into Classification Schemes.