JIT-4 The JIT-4 platform

Conclusion — pages to proofs, proofs to production

Web 4: assemble SaaS. Web 5: prove the line. Web 6: standardize assembly. Same truths, faster outcomes.

What we’ve established

  • From Web 3 → 4: self-describing pages and a SaaS-first spine are table stakes.
  • From Web 4 → 5: decisions live at the sentence; add exact-line, verification, drift, locale-true resolution.
  • Toward Web 6 (MM3): standardize assembly so capability ships in hours, not quarters.

Operator’s checklist

  • Publish a charter (consent, limits, locales, privacy).
  • Stand up a swap-able services spine (auth, catalog, checkout, payments, tax, search).
  • Instrument truth: 10–50 claim lines/page; exact-line landing; changefeed.
  • Measure: time-to-clarity, verified-link rate, movement cost, locale parity.