Scrum Mastery Cheat Sheet
1. The 3-5-3 Structure
3 Accountabilities
- Scrum Master: True Leader / Coach
- Product Owner: Value Maximizer
- Developers: Quality & Increment
5 Events
- The Sprint: The Container
- Sprint Planning: Why/What/How
- Daily Scrum: Plan 24 Hours
- Sprint Review: Inspect & Adapt
- Sprint Retrospective: Process Improvement
3 Artifacts
- Product Backlog: (Product Goal)
- Sprint Backlog: (Sprint Goal)
- Increment: (Def. of Done)
2. Core Responsibilities
Scrum Master
- Establishes Scrum as defined in the Guide.
- Accountable for the Scrum Team's effectiveness.
- Removes impediments and coaches the organization.
Product Owner
- Accountable for maximizing product value.
- Solely responsible for Backlog management.
- Must be one person, not a committee.
Developers
- Committed to creating any aspect of a usable Increment.
- Hold each other accountable as professionals.
- Always own the Sprint Backlog and Plan.
3. Time-Box Limits (Max)
8 Hours
Sprint Planning
Define Why, What, and How.
15 Mins
Daily Scrum
Inspect progress toward Sprint Goal.
4 Hours
Sprint Review
Inspect Increment & adapt Backlog.
3 Hours
Sprint Retrospective
Plan quality/effectiveness improvements.
4. PSM / PSPO Essentials
Q: Who can cancel a Sprint?
A: Only the Product Owner if the Goal becomes obsolete.
Q: Who decides how work is done?
A: The Developers (they are self-managing).
Q: When is a Sprint over?
A: When the Time-box expires (it never ends early).