Context - Current GSIM Cardinality:

 

Classification Item:

Classification Item 1..* Level (Mandatory, Many)

 

Classification Scheme:

Classification Scheme 1..* Classification Item (Mandatory, Many)

Classification Scheme 0..* Level (Option, Many)

 

Issue:

 

If a Classification Item is required to have at least one Level and a Classification Scheme is required to have at least one Classification Item, then by inference a Classification Scheme will require at least one Level. This is contrary to the current GSIM definition of Classification Scheme.

 

Solution Options:

 

Option A: Classification Scheme has Mandatory Level

Change the definition of Classification Scheme such that it must contain at least one Level.

 

Option B: Classification Item has Optional Level

Change the definition of Classification Item such that it is optional to be grouped by a Level.


Recommendation:

Option A is recommended for the following reasons: