cleanroom software engineering

The cleanroom software engineering process is a software development process intended to produce software with a certifiable level of reliability. 1 It follows a quality approach to software development which follows a set of principles and practices for gathering requirements, designing, coding, testing, managing, etc. which not only improves the quality of the product but also increases productivity and reduces development cost. 2 Cleanroom Testing is a software engineering technique that relies on walkthroughs, inspection, and formal verification to ensure the code is zero-defect. 3 This technique produces documentation and code that is extra reliable and fixable than various development methods relying heavily on code execution-based testing.