What must stay stable as the product evolves?
Preserve meaning, behavior, and delivery quality.
Feature 102 · Product value
Capability Decision Tree Feature
A responsive decision tree maps one product question through two system branches to four practical outcomes.
Start with the decision, then follow the system to the outcome
Grid communicates hierarchy on desktop while the source order becomes a clear top-to-bottom sequence on mobile.
Describe purpose
Use semantic language and durable contracts.
Protect behavior
Use responsive structure and measurable proof.
Shared vocabulary
Intent travels across disciplines.
Stable APIs
Responsibilities remain discoverable.
Accessible paths
Native interaction stays intact.
Trusted releases
Evidence bounds every shipment.