Diagnostic Framework

Decision Quality Model™

How Good Decisions Produce Good Outcomes

A framework for evaluating the quality of project decisions independent of their outcomes. Good process can still produce bad outcomes — but bad process almost always produces bad outcomes eventually. The Decision Quality Model™ identifies six dimensions of decision quality.

Framework levels

Appropriate Frame LEVEL 1 Creative Alternatives LEVEL 2 Meaningful Information LEVEL 3 Clear Values LEVEL 4 Sound Reasoning LEVEL 5 Commitment to Action LEVEL 6
Level 1 of 6

Appropriate Frame

Is the decision being made in the right context with clear objectives?

Level 2 of 6

Creative Alternatives

Have multiple viable options been generated and considered?

Level 3 of 6

Meaningful Information

Is the decision based on relevant, reliable data — not assumptions?

Level 4 of 6

Clear Values

Are the trade-offs between competing priorities explicitly understood?

Level 5 of 6

Sound Reasoning

Is the logic connecting information to conclusions valid?

Level 6 of 6

Commitment to Action

Are the stakeholders committed to implementing the decision?

Select a level to expand it.

Purpose

The Decision Quality Model™ helps leaders judge whether a project decision was well made at the time it was made, independent of how it later turned out. It supports decisions about whether to proceed, redesign or reverse major commitments by testing six dimensions: framing, alternatives, information, values, reasoning and commitment to action. Its purpose is to separate luck from quality in outcome reviews.

How to Use It

Convene the decision team before a major commitment and score each of the six dimensions explicitly. First, confirm the frame: are objectives and context correctly defined? Second, demand genuine alternatives, not one option with a straw man. Third, audit the information base: distinguish verified data from assumption, and log key uncertainties. Fourth, surface values: make trade-offs between cost, schedule, safety and scope explicit rather than implicit. Fifth, stress-test the reasoning: does the logic connecting evidence to recommendation survive challenge from a dissenting reviewer? Sixth, confirm commitment to action: are the people who must execute genuinely signed up? Proceed only when all six pass; otherwise identify the weakest link and repair it before committing.

Worked Example

Applied to the JPMorgan Chase 'London Whale' episode of 2012, in which the bank's Chief Investment Office reported trading losses exceeding $6 billion, the model exposes multiple weak dimensions. The frame was blurred: a unit presented as hedging risk was in effect taking large, concentrated positions in credit derivatives. Alternatives to unwinding or restructuring the position early were not seriously entertained as losses grew. Information was unreliable — subsequent US Senate investigation findings described mismarked positions and risk models altered in ways that understated exposure. Values were conflicted: short-term reported results competed with prudent risk limits. Reasoning failed as escalating positions were justified rather than questioned. Even commitment to action was fractured, with traders and senior management not aligned. The eventual loss was not bad luck; it was the predictable output of low-quality decisions.

Limitations

The model assesses process quality, not outcome probability; even excellent decisions can fail under adverse conditions, and poor ones sometimes succeed. Scoring the six dimensions involves judgement and can itself be gamed by teams seeking approval rather than rigour. It also requires access to how the decision was actually made — information frequently unavailable to outside analysts, who must rely on investigations and testimony.

Relationship to PMOS

PMOS is being designed to operationalise this model as a decision-gate checklist: each major commitment recorded in the system will require evidence against the six dimensions before approval. Until PMOS is released, the model remains a manual discipline PIA applies in its investigation reviews.

Version 1.0Published 2026-08-01Review date 2027-02-01

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Investigations Using This Framework

NHS National Programme for IT — investigative documentary thumbnail
£12.7B

NHS National Programme for IT

Sydney Opera House — investigative documentary thumbnail
A$102M

Sydney Opera House

Queensland Health payroll disaster — investigative documentary thumbnail
A$1.25 billion (estimated total cost of ownership, attributed to Queensland Government/KPMG estimates)

Queensland Health Payroll

Kansai airport sinking investigation — aerial view of the artificial island airport in Osaka Bay
¥1.45tn Phase 1 (commonly cited); ~US$20bn cumulative by 2008 incl. Island II and remediation

Kansai International Airport

California High-Speed Rail investigation — unfinished concrete viaduct in the Central Valley
$33bn (2008 promise) → $88.5–127.9bn range (2024 Business Plan); ~$13bn spent, no service

California High-Speed Rail

Fukushima Daiichi investigation — the damaged reactor buildings behind the seawall
¥21.5tn (US$187–190bn) official 2016 estimate; JCER private estimate ¥35–81tn; ¥12.1tn spent by FY2021 (Board of Audit)

Fukushima Daiichi

The container ship Ever Given wedged diagonally across the Suez Canal, surrounded by tugboats and dredgers during the March 2021 salvage operation
Settlement reported ~$540M (unconfirmed); trade delay estimated up to $9.6B/day

Ever Given: Six Days That Stopped World Trade

HS2 high-speed rail construction works in the English Midlands, with tunnelling and viaduct structures under an overcast sky
£87.7-102.7B (2026 estimate, London-Birmingham only)

HS2: How Cost, Scope and Schedule Changed Britain's High-Speed Rail Programme

The Foxconn site in Mount Pleasant, Wisconsin — sparse industrial buildings on cleared farmland originally destined for a $10 billion LCD factory
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Foxconn in Wisconsin: The $10 Billion Factory That Never Was

Delhi Metro — investigative documentary thumbnail
Approx. INR 105 billion (Phase I, sanctioned; delivered broadly on budget)

Delhi Metro: The Megaproject That Delivered

Heathrow Terminal 5 — investigative documentary thumbnail
Approx. £4.3 billion

Heathrow Terminal 5: Managing Severe Engineering Risk

Hong Kong International Airport — investigative documentary thumbnail
Approx. US$20 billion (airport core programme, widely reported estimate)

Hong Kong International Airport: From Chaotic Opening to World Benchmark

Burj Khalifa rising 828 metres above Downtown Dubai at dusk, the world's tallest building, delivered by Emaar, SOM and Samsung C&T between 2004 and 2010
Widely reported at approx. US$1.5 billion (tower only); never officially disclosed

Burj Khalifa: The Supertall Megaproject That Finished on Time in a Financial Storm

Aerial view of a vast TSMC GIGAFAB semiconductor plant in a Taiwan science park, showing the phased cleanroom complex that anchors the company's repeatable fab-delivery programme.
Fab 18: more than NT$500 billion (approx. US$17 billion, 2018 announcement); leading-edge fabs now estimated at US$17-20 billion+ each

TSMC's GigaFab Programme: The Megaproject Machine That Never Stops

Aerial view of Apple Park in Cupertino: the vast circular glass ring designed by Foster + Partners set in landscaped parkland of drought-resistant trees.
Reported around US$5 billion final (unconfirmed by Apple); early estimates under US$3 billion

Apple Park: How Design Ambition Shaped a Multi-Billion-Dollar Headquarters

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