Estimation Technique

Estimation technique plays an important role in the success of software project and proper execution of tasks.
The technique used to calculate the time needed to fulfil a particular task is called as Estimation Technique.
The estimate is a prediction or a rough idea to determine the effort (time or cost) required to complete a defined task.
Estimation is based on the past data, available knowledge, assumptions and calculated risks.
Estimation is needed to avoid exceeding the timescale and over passing the budget for testing activities.

Following are some important things to be considered before the estimation of testing activities:

Ensure that all the requirements are final. If not then determine how fast can they be finalized.
It is necessary to check all the responsibilities and dependencies are clear.
Ensure that all necessary infrastructure is ready for testing.
Ensure that all the assumptions and risks are documented before the estimating task.

The software testing estimation techniques used for estimating a task are: