Six kinds of typical collaborative modeling grid services and their application portals were realized so that the computation resource,model resource and data resource could be shared and reused in the collaborative modeling environment.

Security defect in the Intranet user management system of HIS and its solving model;

Aircraft manufacturing process oriented unified user management system and strategy;

Cluster user management system based on LDAP and AFS;

This article discussed how to improve library users management system, with the developing of digital library resources, in order to improve service and work efficiency.

In the light of the operation situation of E-reading room of univ er sity library, this paper probes into the concrete measures for the security mana gement of library s multimedia reading room under the network environment from a spects of the facility protection, virus prevention, and users management, etc.