Firstly,an intrusion model is presented,which pays its emphasis on the influence of the intrusion upon the system and describes the intrusion as the state transition process of the attackers capability.

In order to analyze the actuality of its application,this paper summarizes the lately researches of Agent based analysis of power market from four aspects,the framework of Multi-Agent system,the Single-Agent Learning mode with directly or indirectly exploring learning-algorithm,other strategy models of Agent and the information-interaction between Agents.

In response to these problems,this paper,according with the existing marketing strategy model characteristics of operators,puts forward a trigger test marketing model, workflow model,dependent on user behavior analysis model as well as marketing analysis of the feedback model,followed by the use of UML Methods of process models and the detailed design of the system analysis.

The performance control policy model is defined according to the DEN-ng model framework,and the policy conflicts are detected and resolved within a network element.

This paper proposes a generic audit policy model on multilevel secure DBMS.