Scrum Theory and Principles
The foundation: empiricism
Scrum is a lightweight framework built on empiricism - knowledge comes from experience and decisions are made on what is observed. Three pillars support it: transparency (the process and the work are visible to those accountable for the outcome), inspection (artifacts and progress are examined frequently enough to detect problems), and adaptation (the process or the work is adjusted as soon as deviation crosses acceptable limits). The pillars form a chain: inspection without transparency produces false signals, and inspection without adaptation is pure waste.
The five values
Commitment, Focus, Openness, Respect and Courage are not decoration - they are the behavioural preconditions that make the pillars function. Openness enables transparency; courage enables adaptation. Expect questions that treat the values as soft extras, or that ask which value a specific behaviour violates.
Lean and iterative-incremental thinking
Scrum inherits from Lean: eliminate waste, focus on essentials, respect people, deliver as fast as possible, and build quality in. It is iterative (refine through repeated cycles) and incremental (build up a usable whole). Iteration without increment is churn; increment without iteration loses the feedback loop.
Traps
- Treating Scrum as a methodology or a prescriptive process - it defines what is required, not how.
- Assuming the Sprint is the only moment for inspection; the Daily Scrum, review and refinement all inspect.
- Assuming adaptation happens automatically once a problem becomes visible.
Rule of thumb
Check transparency before you inspect. If the backlog, the Definition of Done or the reported status is not honest and visible, any decision you make from inspection will be wrong.