What is Planning Poker?
Short demo on planning poker app by planningpoker.com. Additional material needed for poker planning. To estimate your user-stories with the Planning Poker, you will need planning poker cards of this type: planning poker cards. You will also find applications on your mobile phones by searching: Planning Poker. Each developer will have his game (or application) card in order to participate in the votes.
Planning Poker is an agile estimating and planning technique that is consensus based. To start a poker planning session, the product owner or customer reads an agile user story or describes a feature to the estimators.
Each estimator is holding a deck of Planning Poker cards with values like 0, 1, 2, 3, 5, 8, 13, 20, 40 and 100, which is the sequence we recommend. The values represent the number of story points, ideal days, or other units in which the team estimates.
The estimators discuss the feature, asking questions of the product owner as needed. When the feature has been fully discussed, each estimator privately selects one card to represent his or her estimate. All cards are then revealed at the same time.
If all estimators selected the same value, that becomes the estimate. If not, the estimators discuss their estimates. The high and low estimators should especially share their reasons. After further discussion, each estimator reselects an estimate card, and all cards are again revealed at the same time.
The poker planning process is repeated until consensus is achieved or until the estimators decide that agile estimating and planning of a particular item needs to be deferred until additional information can be acquired.
When should we engage in Planning Poker?
Most teams will hold a Planning Poker session shortly after an initial product backlog is written. This session (which may be spread over multiple days) is used to create initial estimates useful in scoping or sizing the project.
Because product backlog items (usually in the form of user stories) will continue to be added throughout the project, most teams will find it helpful to conduct subsequent agile estimating and planning sessions once per iteration. Usually this is done a few days before the end of the iteration and immediately following a daily standup, since the whole team is together at that time anyway.
How does poker planning work with a distributed team?
Simple: go to PlanningPoker.com. Mountain Goat Software helped develop that website to offer it as a free resource to the agile community. A product owner, ScrumMaster or agile coach can log in and preload a set of items to be estimated. A private URL can then be shared with estimators who log in and join a conference call or Skype session. Agile estimating and planning then proceeds as it would in person.
Does Planning Poker work?
Absolutely. Teams estimating with Planning Poker consistently report that they arrive at more accurate estimates than with any technique they'd used before.
One reason Planning Poker leads to better estimates is because it brings together multiple expert opinions. Because these experts form a cross-functional team from all disciplines on a software project, they are better suited to the estimation task than anyone else.
After completing a thorough review of the literature on software estimation, Magne Jørgensen, Ph.D., of the Simula Research Lab concluded that 'the people most competent in solving the task should estimate it.'
Second, a lively dialogue ensues during poker planning, and estimators are called upon by their peers to justify their estimates. Researchers have found that this improves estimate accuracy, especially on items with a lot of uncertainty as we find on most software projects.
Further, being asked to justify estimates has also been shown to result in estimates that better compensate for missing information. This is important on an agile project because the user stories being estimated are often intentionally vague.
Additionally, studies have shown that averaging individual estimates during agile estimating and planning leads to better results as do group discussions of estimates.
How can I get Planning Poker cards?
Planning Poker cards are available in the Mountain Goat Software store. Mountain Goat Software's branded Planning Poker cards are sold at cost as a courtesy to the agile community.
Our full-color cards are the absolute highest-quality cards available anywhere. They are manufactured by the same company that prints many of the world's most popular playing card brands, including Bicycle, Bee, and the World Poker Tour.
We also offer royalty-free licenses to organizations that wish to produce their own cards. The license is available here: https://www.mountaingoatsoftware.com/agile/planning-poker/license
Recommended Resources Related To Planning Poker
Online Planning Poker Tool Free
- How Can We Get the Best Estimates of Story Size?
- The Best Way to Establish a Baseline When Playing Planning Poker
- Don't Average During Planning Poker
- Agile Estimating
Courses Related To Planning Poker
Planning Poker Tool Online Store
When should we engage in Planning Poker?
Most teams will hold a Planning Poker session shortly after an initial product backlog is written. This session (which may be spread over multiple days) is used to create initial estimates useful in scoping or sizing the project.
Because product backlog items (usually in the form of user stories) will continue to be added throughout the project, most teams will find it helpful to conduct subsequent agile estimating and planning sessions once per iteration. Usually this is done a few days before the end of the iteration and immediately following a daily standup, since the whole team is together at that time anyway.
How does poker planning work with a distributed team?
Simple: go to PlanningPoker.com. Mountain Goat Software helped develop that website to offer it as a free resource to the agile community. A product owner, ScrumMaster or agile coach can log in and preload a set of items to be estimated. A private URL can then be shared with estimators who log in and join a conference call or Skype session. Agile estimating and planning then proceeds as it would in person.
Does Planning Poker work?
Absolutely. Teams estimating with Planning Poker consistently report that they arrive at more accurate estimates than with any technique they'd used before.
One reason Planning Poker leads to better estimates is because it brings together multiple expert opinions. Because these experts form a cross-functional team from all disciplines on a software project, they are better suited to the estimation task than anyone else.
After completing a thorough review of the literature on software estimation, Magne Jørgensen, Ph.D., of the Simula Research Lab concluded that 'the people most competent in solving the task should estimate it.'
Second, a lively dialogue ensues during poker planning, and estimators are called upon by their peers to justify their estimates. Researchers have found that this improves estimate accuracy, especially on items with a lot of uncertainty as we find on most software projects.
Further, being asked to justify estimates has also been shown to result in estimates that better compensate for missing information. This is important on an agile project because the user stories being estimated are often intentionally vague.
Additionally, studies have shown that averaging individual estimates during agile estimating and planning leads to better results as do group discussions of estimates.
How can I get Planning Poker cards?
Planning Poker cards are available in the Mountain Goat Software store. Mountain Goat Software's branded Planning Poker cards are sold at cost as a courtesy to the agile community.
Our full-color cards are the absolute highest-quality cards available anywhere. They are manufactured by the same company that prints many of the world's most popular playing card brands, including Bicycle, Bee, and the World Poker Tour.
We also offer royalty-free licenses to organizations that wish to produce their own cards. The license is available here: https://www.mountaingoatsoftware.com/agile/planning-poker/license
Recommended Resources Related To Planning Poker
Online Planning Poker Tool Free
- How Can We Get the Best Estimates of Story Size?
- The Best Way to Establish a Baseline When Playing Planning Poker
- Don't Average During Planning Poker
- Agile Estimating
Courses Related To Planning Poker
Planning Poker Tool Online Store
Scrum Foundations Video Series
All the foundational knowledge of Scrum including: the framework, values, different roles, meetings, backlogs, and improving efficiency & quality.
- Estimation Techniques Tutorial
- Estimation Techniques Resources
- Selected Reading
Planning Poker Estimation
Planning Poker is a consensus-based technique for estimating, mostly used to estimate effort or relative size of user stories in Scrum.
Planning Poker combines three estimation techniques − Wideband Delphi Technique, Analogous Estimation, and Estimation using WBS.
Planning Poker was first defined and named by James Grenning in 2002 and later popularized by Mike Cohn in his book 'Agile Estimating and Planning', whose company trade marked the term.
Planning Poker Estimation Technique
In Planning Poker Estimation Technique, estimates for the user stories are derived by playing planning poker. The entire Scrum team is involved and it results in quick but reliable estimates.
Planning Poker is played with a deck of cards. As Fibonacci sequence is used, the cards have numbers - 1, 2, 3, 5, 8, 13, 21, 34, etc. These numbers represent the 'Story Points'. Each estimator has a deck of cards. The numbers on the cards should be large enough to be visible to all the team members, when one of the team members holds up a card.
One of the team members is selected as the Moderator. The moderator reads the description of the user story for which estimation is being made. If the estimators have any questions, product owner answers them.
Each estimator privately selects a card representing his or her estimate. Cards are not shown until all the estimators have made a selection. At that time, all cards are simultaneously turned over and held up so that all team members can see each estimate.
In the first round, it is very likely that the estimations vary. The high and low estimators explain the reason for their estimates. Care should be taken that all the discussions are meant for understanding only and nothing is to be taken personally. The moderator has to ensure the same.
The team can discuss the story and their estimates for a few more minutes.
The moderator can take notes on the discussion that will be helpful when the specific story is developed. After the discussion, each estimator re-estimates by again selecting a card. Cards are once again kept private until everyone has estimated, at which point they are turned over at the same time.
Repeat the process till the estimates converge to a single estimate that can be used for the story. The number of rounds of estimation may vary from one user story to another.
Benefits of Planning Poker Estimation
Planning poker combines three methods of estimation −
Expert Opinion − In expert opinion-based estimation approach, an expert is asked how long something will take or how big it will be. The expert provides an estimate relying on his or her experience or intuition or gut feel. Expert Opinion Estimation usually doesn't take much time and is more accurate compared to some of the analytical methods.
Analogy − Analogy estimation uses comparison of user stories. The user story under estimation is compared with similar user stories implemented earlier, giving accurate results as the estimation is based on proven data.
Disaggregation − Disaggregation estimation is done by splitting a user story into smaller, easier-to-estimate user stories. The user stories to be included in a sprint are normally in the range of two to five days to develop. Hence, the user stories that possibly take longer duration need to be split into smaller use-Cases. This approach also ensures that there would be many stories that are comparable.
