Planning poker is a consensus-based, gamified technique mostly used to estimate effort or relative size of development goals in software development. In planning poker, members of the group make estimates by playing numbered cards face-down to the table, instead of speaking them aloud. The cards are revealed, and the estimates are then discussed. By hiding the figures in this way, the group can avoid the cognitive bias of anchoring, where the first number spoken aloud sets a precedent for subsequent estimates. src Wikipedia . It is also called Scrum poker. Planning poker is based on a list of features to be delivered, several copies of a deck of cards and optionally, an egg timer that can be used to limit time spent in discussion of each item. At the estimation meeting, each estimator is given one deck of the cards. All decks have identical sets of cards in them. The meeting proceeds as follows: A Moderator, who will not play, chairs the meeting. The Product Manager...