Alternative Evaluation Method
We compared the design alternatives using five criteria derived from our user requirements: route understanding, cognitive load, in-climb actionability, autonomy, and implementation feasibility. Each criterion was scored from 1 to 5, where 1 means weak support and 5 means strong support. The final design was selected because it best balanced pre-climb preparation, low-overload guidance, user control, and practical implementation within our web-based prototype.
| Alternative |
Route Understanding |
Cognitive Load |
In-Climb Actionability |
Autonomy |
Implementation Feasibility |
Total |
| Option A: Pre-Climb Route Preview and Review |
4 |
4 |
1 |
3 |
5 |
17 |
| Option B: Detailed In-Climb Guidance |
3 |
2 |
5 |
2 |
3 |
15 |
| Option C: Brief In-Climb Cueing |
2 |
5 |
4 |
4 |
4 |
19 |
| Final: Layered Pre-Climb Preview + Brief In-Climb Cueing |
5 |
5 |
5 |
5 |
4 |
24 |
The matrix shows that Option A was strong for preparation but weak during climbing, while Option B provided strong real-time support but risked overload and reduced autonomy. Option C was lightweight and practical but did not sufficiently support initial route understanding. Therefore, we selected the combined final direction: layered pre-climb preview plus brief in-climb cueing, with explicit fallback for uncertain moments.