What is Scrum and what are its key components?

Scrum is an Agile framework for managing work in fixed-length iterations (sprints, usually 2-4 weeks). Key roles: Product Owner (defines what to build), Scrum Master (facilitates process), Development Team (builds product). Key events: Sprint Planning, Daily Standup, Sprint Review, Retrospective. Artifacts: Product Backlog, Sprint Backlog, Increment. Sprint delivers potentially shippable increment. Emphasizes self-organization, transparency, and continuous improvement.