# Nigel Scale https://nigelbaker.wordpress.com/2011/08/01/the-nigel-scale/ The Nigel Scale, as defined by Nigel Baker, is a tool used in Scrum discussions to differentiate between Scrum rules, best practices, and non-Scrum practices. It's divided into three categories: NS1, NS2, and NS3. NS1 represents the hard rules of Scrum, such as Sprints, Daily Scrums, and ScrumMasters. NS2 refers to best practices within Scrum, which can vary based on the team's needs and the specific situation. NS3 denotes practices that are not part of Scrum or are considered anti-practices. The Nigel Scale is used to guide decision-making and ensure clarity in Scrum implementation.