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Using Your Development Environment › Setting Up the User Environment › The Null Model

The Null Model

The null model is the base for new models. It contains no user-defined objects. The null model is installed with CA 2E and reinstalled when you upgrade to a new version of CA 2E.

When you execute YCRTMDLLIB, the command creates a copy of the null model with the default system values for your development environment. YCRTMDLLIB parameters let you modify these defaults. You can then tailor the model to meet the requirements of your development environment.