 The scrum process was developed by Sutherland, John Scumniotales and Jeff McKenna while at Easel Corporation and influenced by agile software development.The principle was based on a 1986 article by Hirotaka Takeuchi and Ikujiro Nonaka in the "Harvard Business Review", and incorporates practices from a draft study published in Dr. Dobb's Journal.It involves 30-day cycles of plan, build and monitor sprints.