When to start Testing in software testing process?

Hi,

Do you know when to start testing of application?
Some body tell that to start testing when developer build application.
Some body tell that to start testing when developer build any unit or module of application.
some one say that as early as possible.
But actually as per my knowledge, it should start during requirement gathering.
We have to start software testing when we start requirement gathering of system

Why to start software testing during requirement gathering?

Reason for that is if you start testing during requirement gathering then you can decrease the possibility of bug before system or unit development.

Then again one question How?
if you have referred requirement document then you can find many points which are actually not required in system or not useful in system. because client don't think about all points when he provide his requirement. you can find missing, incomplete or very requirement in Software requirement specification document.
If you have found all these defects during requirement it is positive. because you have prevented system from bug/defect.
one thing more that in SDLC's different phases, requirement gathering is first phase.
In SDLC, if any bug/defect found during system testing, integration testing or acceptance testing are more cost affective then bug/defect found during requirement gathering phase.
so this is reason of why to start testing during requirement gathering.

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What is Unit testing?

Hi,

There are many types of testing performed during software testing life cycle.
Like
1. Unit testing.
2. Integration testing
3. System testing
4. System integration testing
5. Acceptance testing
Do you have any knowledge about unit testing in software engineering?
Unit testing is one type of software testing.

Definition of Unit testing

Primary goal of unit testing is to test a smallest testable piece of system is called unit testing.
In STLC(Software testing life cycle) unit testing is performed before all types of testing described above.
Basically unit testing is performed by system developer. not by the system testing engineer.
When developer start to develop system, first of all he develop a unit of system one by one.
Then he have to test that unit or smallest piece developed by him is working fine as per requirement or not.
So unit testing is basic task of system.

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About Software testing

Hi,

Here are the links about software testing.
Please choose your topic from bellow in which you are interested.
Read it and learn with fun.
Day to day these links will increase as per my new post.

1. Basic Information of software testing
2. What is the Error, bug and failure in software engineering ?
3. Definition of Software Testing
4. When to start Testing in software testing process?
5. What is Unit testing?
6. What is integration testing?

Please put your comment if information you like and useful for you.

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