This International standard defines a language by which a 'universe of discourse' for an aspect of product data can be specified. The language is called EXPRESS. EXPRESS is a conceptual schema language as defined in ISO TR 9007. That is, it provides for specification of the objects belonging to a universe of discourse, the information units pertaining to those objects and the constraints on those objects.
Registration number (WIID)
15140
Scope
This International standard defines a language by which a 'universe of discourse' for an aspect of product data can be specified. The language is called EXPRESS. EXPRESS is a conceptual schema language as defined in ISO TR 9007. That is, it provides for specification of the objects belonging to a universe of discourse, the information units pertaining to those objects and the constraints on those objects.