Model Scope

A signature with model scope ("model signature") captures the data in the model in which it is placed.

Included in a model signature	contents of all elements in the model (graphic and non-graphic) contents of file-wide, non-graphic data, such as shared cell definitions model properties, such as model name, number, type, and units
Excluded from a model signature	last–modified time of each element "m" and "n" properties flags on graphic elements archive flag on each element signatures reference attachment data, if the signature does not include references

Note: A signature may apply to some but not all models within a design file.