The XDC file includes the Reporting Service URL that points to Rational DOORS database, but it would be time-consuming and counterproductive to add all content in the database to the reporting data warehouse. The working set and reportable shape helps you focus the reporting data on specific projects, folders, modules, attributes, and link types.
Rational DOORS does not support a centralized type system for an entire database. Attributes and link types have unique IDs in each module in the database. However, when you create reports for multiple modules, you might want to report on attributes and link types that have the same names across many modules. For example, you might want to report on the "status" attribute and the "elaborated by" link type across multiple modules. Unique attribute and link type IDs in each module create obstacles to consistent reporting across multiple modules. You can map each attribute and link type to a consistent URI, which the reporting capability can use to represent those types across all modules.
See the related topics for instructions about how to create the working set, the reportable shape, and attribute and link type mappings.