ISO/TS 10303-1367:2010-03 specifies the application module for
Textual expression representation.

The following are within the scope of
ISO/TS 10303-1367:2010-03:

• definition of a representation item which is an expression, algorithm, function or computable code represented as text;
• definition of the format of the textual expression;
• definition of parameters and expressions described as text.