This paper presents a working model for information system security evaluation and related vulnerability management, defines some basic concepts in information security evaluation such as assets, value of assets, threat and vulnerability, and then puts forward some principles for the quantification of these concepts.

On the base of successfully developing a MRPII software system,the author researched inventory manage s strategy and the software developement.

According to the practice in design of a managing-information system(MIS),this paper analyses the electricity enterprise s management features,and the corresponding rules for information system design.

The authors propose an architecture of DIS white system, analyze the function requirements of the exercise management, site management and node management.