By using access control matrix,we can achieve the real time and dynamic control of task,which ensures the system security.

Combining with Data Center of Surveying & Mapping?s actual situation of security and confidentiality,the model uses the set theory to implement the construction principle and implementation methods of access control matrix,audit and alarm technology,which discusses the related security strategy and gives examples of the model?s construction.

Establishment of four-dimension access matrix model;

As this paper points out that Lampson’s access matrix is the most fine-grained access control model, the other security policies need to group access matrix according to their different application requirements.

In this paper, a subject-role-permission 3-dimensional access matrix model(SRPAM), proposed by introducing a role dimension, could resolve the above-mentioned bugs referred all above.

The article emphasizes on discussing the two measures to protect the datum in the network:accessing control measure and information encryption measure.

The paper introduces the three kinds of threatens to campus network s safety and resolving methods, especially showing how to use the method of accessing control to safeguard the campus network

In order to take effective precautions against illegal operation of routers and strengthen the security of computer network, this paper briefly introduces some kinds of the configuration methods of access control ASN routers.

Application of extended role-based access control under the struts framework;

A lattice-based access control model;

This paper discusses the interview control model based on roles firstly,and then brings forward a model of purview assignment based on role and interview control,finally it was realized in police technological investigation managerial system.