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About This Item
Full Description
This part of ISO 10303 defines a language by which an instance of (part of) a universe of discourse can be displayed. It also provides a formal description method for supporting the specification of abstract test cases. The language is called EXPRESS-I. It is a companion language to EXPRESS which is specified in ISO 10303-11.
EXPRESS-I is an instantiation language for a conceptual schema language as defined in ISO TR 9007, and the particular conceptual schema language that formed the starting point for EXPRESS-I was EXPRESS. The EXPRESS-I language provides for the display of the state of the objects belonging to a universe of discourse and the information units pertaining to those objects.
The following are within the scope:
- display of instances of schemas;
- display of instances of types and entities;
- abstract test case data;
- mapping from EXPRESS schemas and data types to EXPRESS-I instances.
The following are outside the scope of this part of ISO 10303:
- mapping from other (conceptual schema) languages to EXPRESS-I;
- definition of database formats;
- definition of file formats;
- definition of transfer formats;
- process control;
- information processing;
- exception handling.
EXPRESS-I is not a programming language.