关键词: 信息网格, 主体, EVP, 全生命周期, 网程

Abstract: An EVP space model of information grid subject was proposed in this paper according to the research on object space model. Using the theory of user’s full life cycle (includes register, log on, use, maintenance, hang up, reconnect, exit, and log out), the processes of the grid users were studied; the change of this model during the different processes of the user’s full life cycle was analyed; the applications of this model in the project of VEGA-IG were introduced, to solve the problems of information grid users, such as distributing, heterogeneous and uniform identification were tried.

Key words: nformation grid, subject, EVP, full life cycle, grip