Hi, I have created 2 projects in Eclipse - the first one is the Base Project with the Model defined for this as BaseModel.jar. The send one is the Extension Project which inherits the BaseModel and extends it, this Model is called ExtendedModel.jar. In Eclipse I can set the dependency on BaseModel in the Extended Project and can write rules using the Base and Extended Models. Now I create 2 packages in Guvnor one to represent the Base Project, the second to represent the Extended Project. I upload the BaseModel to the BaseProject and the associated technical rules and this all works well. In the Extended Package I upload the "BaseModel.jar" successfully, however when I try to upload the "ExtendedModel.jar" it gives me an Error. The only way I can resolve my error is to update the ExtendedModel.jar to include all classes from BaseModel.jar, so it seems like the Guvnor requires all dependencies to be resolved within the Model jar and cannot reference other Data Models within the same package. Is there a way for Guvnor to lookup the other Models for dependencies and resolve the dependencies? If not what is the recommended approach for specifying dependent models in Guvnor? Thanks, dme -- View this message in context: http://drools.46999.n3.nabble.com/Data-Model-Dependencies-in-Guvnor-tp401... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users