Change-order package

Riverbend Mixed-Use — Tower B · prepared for for court / counsel.

Simulated data. Every capture in this demo is origin: "simulated" — invented, not recorded on a jobsite. These pages show how a productivity factor is derived. No model-accuracy figure is reported anywhere: simulated captures may train a model and may never measure one, so an accuracy number computed here would be meaningless.

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Traceability: All 3 figures resolve to their source capture and hours rows.

Change-order package

Riverbend Mixed-Use — Tower B · 1400 Riverbend Way, Burnaby, BC · data region ca-central-1

Figures and their sources

Scope item	Date	Installed	Hours	Factor	Provenance
Drywall Level 4 board hang — north wing	2026-08-17	47 sheets	8	0.98On rate	Traced captures: cap-1 hours: hrs-1
Drywall Level 5 board hang — north wing	2026-08-18	29 sheets	8	0.60Critical	Traced captures: cap-3 hours: hrs-2
Framing Level 5 metal stud partitions	2026-08-20	210 lin ft	12	0.97On rate	Traced captures: cap-6 hours: hrs-3

Conditions recorded on the same captures

Material staging blocking corridor at L5 north (blocked_access, capture cap-3, confidence 0.79)
Mechanical rough-in working same corridor (stacked_trades, capture cap-4, confidence 0.74)

Exhibit A — annotated capture

Real photograph, invented numbers. This capture is origin: "simulated". It illustrates what the annotation layer produces; no figure on it describes measured work, and none of it may support an accuracy claim.

L4 north corridor · 2026-08-17 · 16 board counted, 4 below threshold · model drywall-v0.3-demo · face blur declared_no_people

Deliberately excluded

1 labour-hours record(s) excluded — unmapped_cost_code:04-320. Excluded rather than joined, so no figure above rests on an unmapped cost code.
1 quantity estimate(s) abstained — the model declined to give a number. Recorded as absent, never as zero.

Standing notes

Every capture in this demo is origin: "simulated". No figure here describes real work.
No individual-worker productivity view exists in the schema, so none can appear in a report.
This document is an export for the subcontractor or their counsel. It is not a filing, and nothing was submitted to any authority.