Maintaining Your Application › Impact Analysis › Change Type

Change Type

Whenever you change a model object,CA 2E assigns a change type. The change type describes the way in which a change impacts other objects that use the changed object. The four possible change types are Object only (*OBJONLY), Generation required (*GEN), Private (*PRIVATE), and Public (*PUBLIC). The first two indicate changes that affect only the changed object itself. As a result, this tutorial covers just the last two change types.

• *PRIVATE - this change type indicates a change to an object that requires that you regenerate and compile all access paths and external functions that use it.

  For example, if you change the action diagram of an internal function, you need to regenerate the external functions that call it.

• *PUBLIC - this change type indicates that the interface of the model object with other objects has changed. As a result, some model objects that use the changed object may require editing. When the editing is complete, you need to regenerate the access paths and external functions that use the changed object.

  For example, if you change the parameters of an internal function you need to edit all functions that call it and then regenerate all external functions that use it.

The change type depends on which attributes of a model object are changed and is derived internally by CA 2E.