scope:

This part of ISO 10303 specifies the resource constructs for the repre- sentation of draughting information. The following are within the scope of this part of ISO 10303: Information regarding the definition, description, and administration of a drawing and the sheets of a drawing; - elementary draughting annotations and their aggregation with more general annotations for the depiction of facts and requirements concerning the product or interpretation of a drawing; -draughting annotations used in the depiction of dimensions,tolerances, and related dimension-measurement information