The emphasis in traditional Project Management is to conduct detailed upfront planning for the project with emphasis on fixing the scope, cost and schedule – and managing those parameters. Traditional project management may at times lead to a situation where the plan has succeeded yet the customer is not satisfied.
The Scrum Framework is founded on the belief that the knowledge workers of today can offer much more than just their technical expertise, and that trying to fully map out and plan for an ever-changing environment is not efficient. Therefore, Scrum encourages data-based, iterative decision making. In Scrum, the primary focus is on delivering products that satisfy customer requirements.
To deliver the greatest amount of value in the shortest amount of time, Scrum promotes prioritization and Time-boxing over fixing the scope, cost and schedule of a project. An important feature of Scrum is self-organization, which allows the individuals who are actually doing the work to estimate and take ownership of tasks.