Modeling Facility › Model Control Statements › Keyword Assignment Statements › User Keywords Rules

User Keywords Rules

User keywords are defined in a Model or on the Model specifications.

For Move and Retrieve Modeling, the model specifications can be found in the Library code.

For On Demand Modeling, the model specifications are provided in the file APTSYSIN to the on-demand modeling program, APCS5920.

For Verification modeling, the model specifications are found in the Control file.

A User keyword is defined on the first Model statement where it is encountered. A User keyword must be initialized by a Keyword Assignment Statement before it can be used in any other Model statement.

No more than 1000 user keywords can be defined at a time.

User keywords have the following syntax rules:

• Keyword names can be from 1 to 20 characters long.
• Keyword names must not begin with a $, except for the special prefixes $G$ and $L$.
• Keyword names must not contain embedded delimiter characters ($ < > ! , : = ) or blanks.
• Keyword value cannot exceed 80 characters.
• Keyword names cannot be one of the following reserved words:
  • AND
  • ELSE
  • ENDIF
  • ENDWHILE
  • IF
  • INC
  • INCLUDE
  • OR
  • WHILE