Handling of Constraints Constraints are prefixed with AASc-3a- followed by a three-digit number. The "c" in "AASc-" was motivated by "Concept Description". The numbering of constraints is unique within namespace AASc-3a; a number of a constraint that was removed will not be used again. If a constraint is mentioning the ID of the Template, then the same constraints shall also be valid for deprecated data specification template IDs. Note: in the Annex listing the metamodel changes, constraints with prefix AASd-, AASs- or AASc- are also listed. These are metamodel, security or data specification constraints, and are now part of the split document parts.