Testing is potentially a risk-based activity. The fact is, one can't test everything equally, and even if one could, it would be too expensive. The risk-based testing (RBT) approach helps to identify risk factors associated with testing. Various RBT models and approaches available today deal with assessing and calculating risks associated with the test scenarios for a system under test. These studies have described risk calculation for test scenarios by considering various factors from both business and technical perspectives.