Finally, the Methods Standard may not suggest a method for the item under consideration. The standard has an appendix and two annexes. Tools per se are not further specified in the ECMA Reference Model. Finally, Annex 1 supports the user in his work with functional tool requirements by means of tabular overviews and applications scenarios. Annex 2 is a used as an introduction into the basics of SDE data management and to offer an overview of standards for the integration of tools with regard to data, control information, and user interface.
Data management is handled through the use of data models.
The real world is first portrayed in a conceptual design from which a logical design of relevant features is developed. Annex 2 provides definitions of a data dictionary, repository, and development data base. Finally, the appendix deals with standards. Not all requirements can be met by a single tool, so a SDE is only possible if tools can be integrated into a uniform environment. The concentration is on data integration.