The vision is what is to be achieved and the road map shows the representations of the significant milestones in the journey.
Defining the vision is one of the most important responsibilities the organizational leadership performs. It gets developers working in the right direction.
The road map is important, not only to help both the development staff and management to understand not just the journey, but where they are as they march forward.
AASF™ Team Responsibilities
AASF™ Requirements Planning
Agilest AASO™ - Adaptive-Agile™ Strategy Officer