An efficient risk analysis using modified goal risk model

In the field of software engineering, the requirement engineering is getting special attention as it is based on the stakeholder´s interests. The main factors that a requirement engineering process considers are business requirements and user requirements. We developed a modified Tropos goal model, in which the evidence of satisfaction and denial of the goal is calculated from the likelihood of the events corresponding to the goals. Relations are defined between multiple goals and events, which define the importance of a particular goal. The event may be considered as a risk according to their likelihood value. So the inter relation values of the goals and events gives the impact of that event on the particular goal. In order to analyze the risk in achieving some particular goals, a set of candidate solutions are generated. The candidate solutions are evaluated on the basis of a risk affinitive value of the goals according to their events. In the previous work a lot of drawbacks and loopholes were observed so in the proposed work these disparities have been eliminated to a large extend. The risk parameters clearly evaluate the affinity of that event to a particular set of goals. This parameter reduces the limitation in the previous work, and helped the end product. According to the proposed approach distinct cost to risk values are achieved. Finally, the results obtained are of high efficiency and throughput.