A story or "myth" about future events that projects a personal view of the future. This view constitutes the context for a planning process. Scenario building is a method to objectify "hidden design assumptions" and to play with various "what ifs" about the future.

All science fiction stories are scenarios. A systematic reading of this underrated branch of literature reveals that writers have consistently modeled very realistic vision of the future a generation ahead of their time.

Building 25 years scenarios is typically a significant segment of a event because it draws out the hidden design assumptions about the future and creates a context for work.

*MG Taylor Corporation Glossary
An Introduction to Management Center Theory and Practice version 2.0