International Journal of Engineering and Technology
The objective of defining security requirements for a system is to map the practical security requirements statements with the results of risk and threat analysis. Under investigation the securities risks of the system can manage (cancel, mitigate or maintain). Like system engineering security engineers must develop appropriate threat models. Security engineers must select those security measures which are most needed for market success. To improve the quality of the artifacts such as requirements documents the software engineers must use models early in the life cycle.