PDTPRO

Here are some powerful basic principles of testing. Although they are expressed simply and most of them appear to be intuitive, they are often overlooked or compromised.

• An author must not he the final tester of his, her own work product.
• While exhaustive testing is desirable, it is not always practical.
• Expected results should he documented for each test.
• Both valid and invalid conditions should be tested.
• Both expected and unexpected results should he validated.
• Test Cases should be re-used ... ie. no throw-away test cases unless the work product itself
  throwaway.
• Testing is a skilled discipline (on par with such skills as technical coding and analysis).
• Testing is a “no-fault” process of detecting variances or defects.