SCRUM in a nutshell

All what you need to know before passing the Professional Scrum Master I 
(PSM I) Assessement.

Definition of Scrum:

Scrum (n): A framework within which people can address complex adaptive problems, while productively and creatively delivering products of the highest possible value.

Scrum is simple to understand, but difficult to master.

• The Scrum Team consists of a Product Owner, the Development Team, and a Scrum Master.
• The team model in Scrum is designed to optimize flexibility, creativity, and productivity.

Scrum Values

• Openness: Being open drives continuous improvement.
• Focus: Teams focus to deliver customer value incrementally.
• Commitment: Teams commit to goals and improvement.
• Respect: Accept & respect the strengths of different people.
• Courage: Be brave. Be honest. Embrace failure.

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? The Product Owner owns the Product Backlog as he/she has to maximize Return of Investment.

? The Product Owner is responsible for expressing backlog items and prioritizing them.

? The Product Owner discusses and agrees with Stakeholders what to do, why and when to release.

? Collaborates with the Development Team on the details of the Product Backlog during the Sprint.

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? The Development Team is a cross-functional team with an optimal size between 3 and 9 members.

? The Development Team delivers a Potentially Shippable Increment at the end of each Sprint.

? They are self-organizing. No one (not even the Scrum Master) tells the Development Team how to turn the Product Backlog into Increments of Potentially releasable functionality.

? Scrum recognizes no titles for Development Team members other than Developer, regardless of the work being performed by each person.

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? The Scrum Master is responsible for ensuring Scrum is understood and enacted. Scrum Masters do this by ensuring that the Scrum Team adheres to Scrum theory, practices, and rules.

? The Scrum Master is a servant-leader for the Scrum Team, supporting the Product Owner with managing the Product Backlog and coaches the team in self-organization and cross-functional collaboration.

? Helps with removing impediments to the Development Team’s progress.

? The Scrum Master leads and coaches the organization in its adoption of Scrum.

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? The Product Backlog is an ordered list of Product Backlog Items (PBI’s).

? Product Backlog Items are requirements for changes to the product (e.g: user stories…).

? The Product Backlog is ordered by priority, the highest items need to be more detailed.

? The team needs to be able to estimate and test all of the Product Backlog Items.

? The list of items is constantly evolving, changing and updating, the Product Owner is responsible for reflecting the changes in the Product Backlog.

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? The Sprint Backlog is list of Product Backlog items selected by the Development Team for delivery in the sprint, plus a plan to deliver the increment.

? Only the Development Team can change its Sprint Backlog during a Sprint. This happens throughout the Sprint and in particular in the Daily Scrum when necessary changes are understood.

? The Development Team tracks total work remaining in every Daily Scrum to forecast the likelihood of achieving the Sprint Goal.

? The Increment is the sum of all Product Backlog items completed during a Sprint and the value of the increments of all previous Sprints.

? An increment must meet the Scrum Team’s Definition of “Done”.

? It must be in useable condition regardless of whether the Product Owner decides to actually release it.

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? The heart of Scrum is Sprint, a time-box of one month or less during which a “Done”, useable, and potentially releasable product increment is created.

? No changes are made during the Sprint what would endanger the Sprint Goal.

? The Scope may be clarified and re-negotiated between the Product Owner and Development Team.

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? Sprint Planning is a two-part meeting time-boxed to a maximum 8 hours for a 1-month Sprint.

? Part 1: The Development Team creates a forecast of the items that will be developed in the Sprint.

? The Scrum Team crafts a Sprint Goal for the Sprint through the implementation of the Product Backlog.

? Part 2: The items in the Sprint Backlog are broken down into units of work of one day or less by the Development Team.

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? The Daily Scrum is a daily 15-minute time-boxed event for the Development Team to synchronize activities and create a plan for the next 24 hours.

? This is done by inspecting the work since the last Daily Scrum and forecasting the work that could be done before the next one.

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? The Sprint Review is held at the end of the Sprint to inspect the product increment.

? This is at most a four-hour meeting for one-month Sprints. For shorter Sprints, the event is usually shorter

? During the Sprint Review, the Scrum Team and stakeholders review what was done in the Sprint.

? The result of the Sprint Review is a revised Product Backlog that defines the probable Product Backlog items for the next Sprint.

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? The Sprint Retrospective occurs after the Sprint Review and prior to the next Sprint Planning.

? This is at most a three-hour meeting for one-month Sprints. For shorter Sprints, the event is usually shorter.

? The purpose is the inspect the process of the last Sprint and identify potential improvements.

? The Scrum Team creates a plan to incorporate these improvements into the way they do their work.

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? Artifact Transparency is crucial in Scrum. Decisions to optimize value and control risk are made based on the perceived state of the artifacts.

? The Scrum Master must work with the Scrum Team, and other involved parties to make sure the artifacts are transparent and understood.

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? The Scrum Team regularly does Product Backlog Refinement together with the stakeholders to add detail, estimates, and order to items in the Product Backlog.

? The Scrum Team decides how and when refinement is done.

? Product Backlog Refinement usually consumes no more than 10% of the capacity of the Development Team.

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Good Luck!!