Module 2 · Make It Interactive

This is what separates an app from a dashboard: viewer-driven inputs. Give viewers approved choices; the app owns the logic underneath (the same principle as parameterized ontology surfaces — callers pick from approved options, they don’t inject logic).

Prompt

Add interactivity: a [region/team] filter, a date-range selector defaulting to the last 90 days, and a what-if input for [assumption, e.g. "utilization change %"] that recalculates the projection live. Wire them so every component honors the selections.

You’ll see: controls appear and drive every component. Change an input — the numbers recompute against governed definitions, not a frozen extract.

✅ Checkpoint

At least two viewer controls drive the app
A what-if input recalculates a result live

​✅ Checkpoint

✅ Checkpoint