Scrum is not considered a methodology because it does not prescribe a detailed process or provide all the answers to the problems encountered during product development. Instead, it offers a framework that guides teams in their interactions and processes, encouraging them to find their solutions to issues.
A methodology typically outlines a comprehensive set of steps and procedures to follow, which can be restrictive in dynamic environments. Scrum, on the other hand, provides a minimal set of rules that support flexibility and adaptability, allowing teams to tailor their approach based on their specific context and challenges.