Strategy & Vision
The second phase of structured scenario methodology moves from the strategic to the specific — from understanding what users fundamentally need to defining how those needs are addressed through concrete interface interactions.
Execution & Design
Activity scenarios describe what users are trying to accomplish in broad terms. Interaction scenarios translate those activities into precise sequences — specifying not just what happens, but exactly how the system responds at each decision point.
Impact & Growth
Validation is critical at this stage. Each interaction scenario must be tested against real user behaviour to confirm the proposed sequence matches how users actually think and move through a task — not how designers imagine they do.
Conclusion
When developed with this rigour, interaction scenarios function as a specification languag
