Page History

...

Each

Gloss
PreSpace false t description

is represented by a row in the 

Specref
RefType file t Descriptiondescription file

 and is identified by the id column in that row. There can be more than one row with the same id but with different effectiveTime values, in which case each of these rows represents a version of that same description. Thus each row represents a version of a description. Each description applies to one concept to which it is linked by the conceptId. All versions of a description must relate to exactly the same identified concept (i.e. the conceptId must not change between versions).

Each

Gloss
PreSpace false t relationship,

from a source

Gloss
PreSpace false t concept

to a destination

Gloss
PreSpace false t concept,

is represented by a row in the 

Specref
RefType file t Relationshiprelationship file

. There can be more than one row with the same id but with different effectiveTime values, in which case each of these rows represents a version of that same relationship. Thus each row represents a version of a relationship. The source, destination and type each relationship are identified respectively by the sourceId, destinationId and typeId columns. All versions of a relationship must have the same sourceId, destinationId and typeId.  The typeId refers to 

Gloss
PreSpace false t concept,

that is also held within the

Specref
RefType file t Conceptconcept file

. The only concepts that can be used as the relationship typeId are

Concept
t 116680003|is a| ShowFormat inline

or concepts that are subtypes of

Concept
t 410662002 |Concept model attribute|

.

...