The third phase of testing is implementation phase. This is the real testing phase. You know the earlier ones, validation, reviewing, and other things, but this is where the real testing occurs with the test data. Now, what are we evaluating? What are we testing here? It is the quality of a code source that we are talking about complains with the design specifications and the code documentation. These are three aspects which we are looking to in the implementation phase testing. Now, what do we mean by quality? I think you could refer back to what I called good programming techniques. About the quality, of course some of the thing that we talk about the quality is something which is reliable, which is understandable by everyone. And then it is easily modifiable. Evaluation of quality of the source code in an important element. So those are our objectives of the test, are these three. Now the techniques that are often used are inspect codes, code walkthrough, stepwise abstraction, that means, we will go through what the stepwise abstraction is at a later stage, if this is not the code using the test step that is basically depends on the object you test, the object of the testing.

---