QE is closely connected to the test-driven development (TDD) methodology. At the core of TDD lies the hypothesis that, before developers begin writing application code, they write the test that the code be supposed to pass. They will then carry out the test, which will fail for the reason that the application code has not yet been written. The test will be re-checked once the code is written to notice if the code passes the test.

QE, in the perspective of software development, is also connected to DevOps and agile processes. DevOps brings collectively software development and IT operations, removing “silos” (a condition where departments do not share information and goals) and building development and security teams work together efficiently. Security becomes entrenched in each phase of the development process.