Testing
From Freephile Wiki
Testing is software development. Software development is writing code. Testing makes sure the code actually works, so in a nutshell: Testing is software development :-)
One major aspect of testing - especially during development and the Continuous Integration process, is static analysis.
Program testing can be used to show the presence of bugs, but never to show their absence![1] - Edsger W. Dijkstra (1970)
See also