Describe ‘planning poker’ or ‘scrum poker’ technique?

 
Planning poker is also referred to as Scrum poker, which technique based on card estimation basically based on the general agreement.

1) To begin with, either owner or the customer reads the agile user story, and its features are understood by the estimator.

2) Every estimator has planning cards each having a different number on it, like for example 0, 1, 2, 3, 5, 8 and so on. The number on the card stands for the story points or ideal days.

3) The features set by the owner of the product are discussed by the Estimator after selecting the cards based on their estimation.

4) In case a common value is selected, then-then that is the estimate. If it is not the case, then they discuss upon the minimum and maximum value estimation.

5) The above process is repeated until and unless they all reach a general agreement.