Abstract:

Information system controllability is an important indicator of the information system stakeholders evaluates the degree of control. As the accelerating pace of national information technology, research on information system controllability not only helps to achieve localization and autonomous of information systems, information systems for national security are also of great significance. In this paper, build a life cycle model of information system controllability. The model were from both static and dynamic, combined the ability of system’s defense, discovery, emergency and confrontation of these four controllable system evaluation. Then separately from the hardware, software, management and other types of analysis of the basic elements affecting the system controllability and made 51 evaluation indexes system controllability. Studies have shown that the system controllability throughout the system life cycle is to promote a continuous process of dynamic feedback, according to the results of the evaluation of each phase to optimize the system to adjust, help to achieve complete self-control information systems. At the same time, the establishment of the system controllability evaluation system not only provides technical indicators and reference information system controllability evaluation, but also to promote the national information security system construction and sustainable development.

Key words: information system, controllability, evaluation index