The working A prototype: use its controls to test the build question.
Test whether a policy, technology, service or program can actually work in a specific place.
RN conceived the question, structured the evidence boundaries, designed the experience, implemented the prototype and documented its limits.
This independent prototype demonstrates an approach; it is not a deployed client system, professional advice or proof of real-world outcomes.
Work through the controls with a situation of your own rather than the sample values. The tool responds to what you put in, so the useful output comes from real input, and everything is processed in your browser as you go. Any sample content you find already loaded is there to show the shape of a filled-in state, and you can clear it and start again at any point.
The build overview sets out the question, the purpose, the role and the evidence status in one place, and the public record behind it states what changed, what another person can reuse and what supports the system. If you want to judge how far this build should be trusted, the record is the page to read, not this one.
BUILD 047-A
Will This Work Here?
Move one intervention between synthetic places and expose what must change.
FITS
No modeled constraint blocks this synthetic transfer.
Digital care navigation service
$140.00 · 8 staff · network required
Synthetic Metro
$180.00 · 12 staff · high
Boundary: A constraint match is a prompt for investigation—not proof of effectiveness, legality, community acceptance, safety, funding, or implementation readiness.