Custom UML profiles

A custom UML profile is primarily a set of stereotypes, constraints, and sometimes classes and other elements that adapt the UML metamodel for a particular domain or purpose; profiles are external to a model and they extend the UML without changing the base metamodel.

You can create custom UML profiles if the default profiles do not meet your project requirements. You can create basic profiles that simply provide additional presentation functionality; you can also create complex profiles deployed through plug-ins and that contain accompanying code to take advantage of the profile's metamodel extensions.

A custom UML profile is helpful in the following situations:

A custom UML profile is stored in a file with an EPX file extension; you can view profiles in the Project Explorer view.

When you create a profile, consider the following information to help guide custom profile development:
Important: Profiles are an extension to the meta-model; therefore, the profile becomes critical to the definition of the model internals as soon as a profile is applied to a model. A model can only be opened in the presence of all of the profiles that are applied to it.

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