Scrum was developed by Sutherland and Schwaber in the early 1990s. It’s is a lightweight framework that helps people, teams and organisations generate value through adaptive solutions for complex problems.
The Scrum framework is purposefully incomplete, only defining the parts required to implement empiricism. It’s not designed to be modified or customised, but to be built on top of to help adapt it to your team’s context, their work, and their goals.
Various processes, techniques and methods can be employed within the framework. Scrum makes visible the relative efficacy of current management, environment, and work techniques, so that improvements can be made.