Estimation is a crucial feature which collaborate with every project. The same point cooperate to the testing assignment and also testing team or qa team that how many time do they needed to perform the testing operations.

For any project, software testing estimation should not be false or not be insignificant. Testing estimation should be always genuine. As we all know that there are many types of activities in the software testing like requirement analysis, test planning, test case writing, executions of test cases, smoke testing, regression testing etc.   

To specify the testing estimation tester or quality analyst have to realize the requirement distinctly whenever requirements for any project take position.

There is required to assign the responsibility correctly. All work should be distributed in such way that each team member engage with the right task and that person should be completed all testing activity in the specified time. For this activity you have to understand the team members knowledge, each member’s expertization which will be helpful to calculate or estimate that how much time needs to create test plan, writing test cases, executing test cases etc. You have to noticed that all team member has their own quality or speed, someone is quicker than another one to perform their assigned testing task or testing activity.

In the time of testing estimation you have to noticed for the resource availability. Estimation is also depends on the team member availability for the each and specific testing task. So that this will help to assigning to the task correctly.

Test estimation decisions come with the experience with the prior projects.

There is an important point which should be remembered always in the time of testing estimation, you have to take buffer time for few activities like bug verifying, regression testing etc. Because these activities are normally depend upon the scope of the projects. If there are more requirement developed than probability of bugs and reverifying of these bug fixing are more, so it may be wastage the estimation time. If we have buffer time then we can perform these kinds of activities. Communication skill is also very significant factor.