Chapter 7 Linking and Synchronizing Models in PowerDesigner
You can generate a model from another model of the same type or from another type.
Model generation is used to link models together provided the Save Generation Dependencies option is selected in the Detail tab of the generation dialog box. This option creates the generation link itself and makes it possible to keep track of the identity of the origin of each generated object.
For example, you generate a PDM from a CDM when you want to start implementing the physical aspect of a conceptual model. The generation link allows you to iterate CDM to PDM generations preserving generation choices over the process.
Model generation allows you to:
For more information on merging two models, see the "Comparing and Merging Models" chapter.
You can select options in the Detail tab of the generation dialog box.
The Save Generation Dependencies option is used to create the generation link and to keep track of the identity of the origin of each generated object. It is useful when objects have been renamed in the source or generated model. It can also be used when you want to merge two models generated from the same model: objects can be compared and recognized as the same object, even if the object has been modified in the merged model.
The Check model option is always available; it is used to verify the source model before generation. If an error is found the generation process stops.
Other generation options are specific to the source and target model; you should refer to the corresponding chapter in the different model user's guides.
| Copyright (C) 2007. Sybase Inc. All rights reserved. |
| |