Abstract The requirement engineering is the process of formulating, maintaining and documenting in the field of software engineering to create a special interest on the stakeholder’s view. In this paper, developing a two layer model- satisfaction and denial of goal which calculates the likelihood of the events with respect to the goal. Here, the risk is defined based on the likelihood value of the candidate solution. In order to analyze the risk there is a need of selecting the particular goal and set some set of risk parameters to generate the minimum candidate solution depending on the risk. The set of parameters are like high, medium and low in the evaluation and considered only the optimized candidate solution which is low. The risk parameter completely reduces the limitation by evaluating the affinity of that event to a particular set of goals. Finally based on the designed method the risk values are calculated and low cost candidate solutions are selected. Keywords: software engineering, Risk analysis, Tropos models, Risk parameters.