Follow the evidence. Test the decision.

Six bounded workflows over joined prototype records. Calculations are deterministic scenarios, not live AI, validated predictions or connected integrations.

Scenario

01 / Context and records

Opening recovery · Arena Superblock

NCR-ARENA-087 → drawing C04 → witness test → gate

NCR-ARENA-087 ↗RFI-ARENA-442 ↗CX-ARENA-1 ↗

02 / Analyse · scenario

Slip to recover: 5 weeks

Total = direct cost + max(0, slip − weeks saved) × SAR 1.9m carrying cost/week.

sequential re-test

SAR 13.7m · 5 residual weeks · SAR 4.2m direct

parallel witness testing

SAR 11.4m · 2 residual weeks · SAR 7.6m direct

accelerated replacement

SAR 11.8m · 0 residual weeks · SAR 11.8m direct

03 / Human next step

Approval queue →View evidence →

Largest threat to scenario opening readiness

illustrative scenario

In the illustrative scenario, the Arena Superblock smoke control chain is the single largest threat: it pushes the integrated systems test and the scenario readiness gate out by about five weeks.

Why

NCR-ARENA-087 records dampers installed against superseded drawing revision C03 instead of C04.
The re-test sits in front of the integrated systems test, which is the last predecessor of the scenario readiness gate.
53 of 80 illustrative milestones are at risk or slipping across the tracked projects; the Arena chain carries the longest downstream consequence.

Options

· Option 1 — sequential re-test — SAR 4.2m direct, 0 weeks recovered
· Option 2 — parallel witness testing — SAR 7.6m direct, 3 weeks recovered
· Option 3 — accelerated replacement — SAR 11.8m direct, 5 weeks recovered

Assumptions

· Re-test cannot start until rectification is complete
· A single witness resource is available in the base case

Owner Development / Programme Director

Evidence

NCR-ARENA-087 INS-ARENA-1181 inspection Dependency chain Milestones for Diriyah Arena Superblock

The answer is generated locally from demo fixtures. Project context for this workflow: Arena Superblock.