Abstract: In order to make sure the concepts and meanings of the enterprise level architecture of command information system, and standardize the description of enterprise level architecture, a description method for the enterprise level architecture of command information system is provided. Firstly, the concepts such as definition, effect and characteristics of enterprise level architecture arc researched. Secondly, the description framework of enterprise level architecture is provided, and the views, relations of views and products of this framework are researchedo Finally, a description method with the combination of the object oriented method and description logic method for the products of this enterprise level architecture framework is provided, and the relevant examples are presented.

Key words: Command information system,Architecture,Enterprise level architecture,Description logic