Scrum is based on REAR (ROLES-EVENTS-ARTIFACTS-RULES)
Scrum is based on empirical process control theory.
Pillars of Empiricism are
- Transparency
- Inspection
- Adaptation
Roles of Scrum
- Product Owner
- Scrum Master
- Development Team
Events of Scrum
- Sprint (Max one month)
- Sprint Planning (Max 8 hours for a monthly Sprint)
- Daily Scrum (Max 15 minutes)
- Sprint Review (Max 4 hours for a monthly Sprint)
- Sprint Retrospective (Max 3 hours for a monthly Sprint)
Artifacts of Scrum
- Product Backlog
- Sprint Backlog
- Increment
Rules
- No activities are allowed between Sprints
- All the requirements must be documented in Product Backlog
- Scrum Master is not a manager
- Development Team has no titles, no team leader
- Entire Development Team is responsible to deliver the Increment
- Every Sprint must produce an increment
- Stakeholders must share the requirements directly with the Product Owner
- Development Team has the final say on the number of backlog items they can work in a Sprint
- Product Owner/Scrum Master cannot force the Development Team
- Development Team estimates the effort of Product backlog items
- Sprint Review is not a status meeting
- All the events are mandatory
- Daily Scrum is a development team event.
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