Is the Definition of Ready a Formal Part of Scrum?

No. The Scrum Guide does not include a Definition of Ready. Teams may use it as a complementary practice, but it is not a formal part of Scrum.

Metaphor

Having a personal packing list for a trip is like using a Definition of Ready — it helps you feel prepared, but the trip will happen whether you follow your list or not. Scrum works the same way: DoR is a helpful self-imposed practice, not an official requirement.

Works Consulted

  1. The Concept of Ready in Scrum | Scrum.org | Accessed 24 Jul. 2025.

Connections

follows:: Ready Means a Work Item Can Be Started or Planned Confidently

Related | Scrum Is Intentionally Incomplete Scrum doesn’t say you HAVE to use a Definition of Ready, but it also doesn’t say that you can’t.