Principle-8:

Testing must be repeatable and reusable.

Explanation:

• if the test case is reusable it would be easy for other developers to understand it and make changes to it.

• and also it reduces the time needed to create the test cases.

Principle-9:

Testing should be planned

Explanation:

• testing is successful when we plan it thoroughly  starting from the requirements phase to the end of the testing phase. 

• otherwise we will miss the quality of our software product that we are working on.

Principle-10:

Testing activities should be included in the software development life cycle(SDLC)

Explanation:

• As  we discussed earlier in the axioms it should be must to include the testing in the entire software development process

• otherwise it would be difficult to us to know where the errors might come from

• may be the errors may come from the requirements phase that passes throughout the code 

• if it is the case we backtrack to every phase and we try to find errors

• this would be difficult for the programmers.