Risk-based TESTING (RBT) is a method of software testing that is based on risk likelihood. It entails analyzing the risk based on software complexity, business criticality, frequency of USE, and probable Defect areas, among other factors. Risk-based testing prioritizes testing of software programme aspects and functions that are more important and likely to have flaws.

Risk is the occurrence of an unknown event that has a POSITIVE or negative impact on a project's measured success criteria. It could be something that HAPPENED in the past, something that is happening now, or something that will happen in the future. These unforeseen events might have an impact on a project's cost, business, technical, and quality goals.

Risks can be positive or negative. Positive risks are referred to as opportunities, and they AID in the long-term viability of a corporation. Investing in a new project, changing corporate processes, and developing new products are just a few examples.

Negative risks are also known as threats, and strategies to reduce or eliminate them are necessary for project success.