Before you create the Sun Master Index project, analyze the business requirements and determine which project components will help you meet those requirements. Planning the project includes defining how each external system will share information with the master index application and how the master index application will share information with those external systems. In addition, you can incorporate master index Java methods that define how the master index application processes incoming data. Master index methods can also be used to transform the data sent from external systems into a format that can be read by the master index application.
An additional consideration is whether to integrate the master index methods into a Business Process.