1) Constraint → Flow (TOC)

  • Find the single bottleneck that limits truth-in-time capture (usually crew → job → attestation).
  • Exploit it (design the system so crews only verify; the badge does capture).
  • Subordinate everything else (reporting, payroll, job costing consume the same truthful stream).
  • Elevate the constraint (pilots → branch rollout → org scale).
  • Repeat.

2) Fast Feedback (DevOps thinking)

  • Short loops from device → cloud → dashboard.
  • Ship small, test in production safely, measure adoption/accuracy, iterate.
  • Telemetry first: event counts, exception rates, attestation latency, closeout success.

3) Full-Kit Readiness

  • Manufacturing: BOM, test jig, firmware provisioning, labels, packaging.
  • Provisioning: Device registry, claim/unclaim flow, QR/serial pairing, crew assignment.
  • Data: Event schema, retention, audit log, PII boundaries.
  • Support: RMA, battery/service lifecycle, device health dashboards.

4) Minimal Cognitive Load

  • No app burden for crews in the field.
  • Badges passively capture; end-of-day attestation is the only human step.

5) Success Metrics

  • Payroll accuracy (+%), disputed hours (↓), auto-closed appointments (%), exception queue SLA, battery days in field.