Expert judgment plus a calculation: a working method for decisions
The essentials in 30 seconds
- A working method for expert judgment plus a calculation has 5 steps: frame, rate, compute, challenge, and decide.
- Experts frame the question and rate inputs, and the calculation combines the ratings identically each time.
- In a simplified example, disagreement on stability (0.2 versus 0.6) crosses the 0.618 line, and disagreement on energy (0.3 versus 0.7) stays above it.
- EQOS Asia collects expert input through structured interviews of 2 hours or 3 days (EQOS Asia method page, as of October 2026).
- Each expert adjustment is logged with a reason and an owner.
Executives rarely have to choose between an expert and a number. The stronger practice gives each a job and records where they meet. This guide sets out a 5-step working method for combining expert judgment and a calculation, as of October 2026, and works through a simplified example. It follows from the question of whether a calculation can replace expert judgment, and it answers with a method you can run on one decision.
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What is a working method for combining expert judgment and a calculation?
The method has 5 steps. The expert frames the question, the experts rate the inputs, the calculation combines the ratings, the experts challenge the output, and the executive decides and records the reasons. Each step has an owner and a written product, so the whole sequence can be reviewed later. The figure shows the sequence.
The split follows what each party does best. People read context, weigh sources, and notice what a model leaves out. A calculation applies one rule to every case in the same way and exposes the effect of each change. Assigning each party its own steps captures both strengths and keeps their roles clear.
How does an expert frame a decision before any calculation?
Framing sets the question, the options, and the dimensions to rate. An expert knows which factors drive a hub choice, a succession, or a market entry, and states them in plain sentences. The framing note also defines the scale: what 0 means, what 100 means, and what a rating of 60 describes in practice.
The EQOS Asia method fixes 9 dimensions in advance: coherence, integrity, resonance, care, trust, transparency, clarity, stability, and energy (EQOS Asia method page, as of October 2026). Fixed dimensions give the experts a shared vocabulary, and they protect the exercise from a framing that quietly favours the preferred option.
How do you collect expert ratings for a decision calculation?
Ask each expert to rate every dimension alone, on the same scale, with one sentence of evidence per rating. The EQOS Asia simulator uses sliders from 0 (collapsed) to 100 (perfect) and relies on an honest self-assessment (EQOS Asia simulator page, as of October 2026). Independent ratings keep the first speaker from anchoring the room.
Keep the full range of ratings until the calculation has run. Two experts at 0.2 and 0.6 carry more information than one average of 0.4, because the gap shows where the evidence is thin. Structured interviews of 2 hours or 3 days, plus collected documents, feed the EQOS Asia Audit computation (EQOS Asia method page, as of October 2026).
Where does expert disagreement change a decision score?
Use a simplified model with 9 equal weights, a geometric mean, and illustrative values. The base profile has 2 ratings at 0.8, 3 at 0.7, 3 at 0.6, and 1 at 0.5, which gives 0.660. Two experts disagree on stability: one says 0.2 and the other 0.6. The scores are 0.584 and 0.660, and the EQOS Asia STOP line sits at 0.618 (EQOS Asia method page, as of October 2026).
That disagreement crosses the line, so it deserves evidence and time. Now suppose 2 experts disagree on energy: 0.3 and 0.7. The scores are 0.623 and 0.685, and both sit above 0.618. The committee can settle that argument quickly, because either view leads to the same verdict. The calculation tells the experts which debate to have.
How do experts challenge the output of a decision calculation?
After the run, the experts review the 3 lowest ratings first, because EQOS Asia states that a single collapsed axis crushes the whole system (EQOS Asia 2008 back-test page, as of October 2026). They ask for the source behind each rating and test whether a plausible alternative changes the verdict. The challenge targets inputs and evidence, and the equation stays fixed so every reviewer works from one result.
When an expert wants to adjust an input, the change goes into an override log with 4 fields: the dimension, the old and new rating, the reason, and the name of the owner. The calculation reruns, and both versions stay in the file. The log turns an informal argument into a record that the next reviewer can read in minutes.
Who owns each part of a decision when judgment and calculation combine?
Experts own the framing, the ratings, and the reading of context. The calculation owns the combination, the sensitivity tests, and the repeatability of the result. The executive owns the decision and the accountability for it. The EQOS Asia deliverable follows this line: it lists immediate decisions, deferrable decisions, and a recommended sequence (EQOS Asia method page, as of October 2026).
Writing the ownership in a short table prevents two common drifts. Experts begin to defend the number as their own, or the number begins to stand in for the executive’s choice. The EQOS Asia method places a Comex presentation, in person or by video call from Singapore, at the end of the workflow, so people discuss the result together (EQOS Asia method page, as of October 2026).
How can you pilot expert judgment plus a calculation on one decision?
Choose one live decision with a date, 2 to 5 options, and an expert who knows the context. Run the 5 steps once, log the overrides, and compare the final choice with the first instinct of the group. The comparison shows where the calculation sharpened the discussion and where the experts corrected it.
The free 30-minute pre-diagnostic, held by video in Singapore time (SGT) under NDA, applies the EQOS Asia equation to a real case (EQOS Asia contact page, as of October 2026). The simulator gives a hands-on first score, and the pricing page lists the tiers, starting with a Reading at US$358 (EQOS Asia pricing page, as of October 2026).
Frequently asked questions
How do you combine expert judgment and a calculation?
Assign each a job. Experts frame the question and rate the inputs with evidence, the calculation combines the ratings by one fixed rule, and the experts then challenge the output. The executive decides and records the reasons. Each step leaves a written product, so a reviewer can follow the whole path later.
What if the experts disagree with the calculation?
Treat the disagreement as information. Check which input drives the gap, ask for the evidence behind it, and rerun the calculation with the alternative rating. Record the change in an override log with the reason and the owner. If both versions lead to the same verdict, the debate can close quickly.
How many experts should rate the inputs?
Two or three independent raters per dimension usually show where opinions diverge, and more raters help when the stakes are high. Each rater works alone, on the same scale, and supplies one sentence of evidence. Keep the full range of ratings until the calculation has run.
How does the EQOS Asia pre-diagnostic test this method?
A free 30-minute video session, scheduled in Singapore time (SGT) and held under NDA, applies the EQOS Asia equation to a real decision. Bring your own ratings and your open disagreements, and ask which ones move the score across the 0.618 line (EQOS Asia contact page, as of October 2026).
Test your knowledge
1. How many steps does the working method have?
- 3
- 5
- 9
Show the answer
5.
2. Which disagreement crosses the 0.618 line in the example?
- Neither one
- Energy 0.3 versus 0.7
- Stability 0.2 versus 0.6
Show the answer
Stability 0.2 versus 0.6.
3. What does an override log record?
- Dimension, old and new rating, reason, owner
- Only the final score
- Only the date
Show the answer
Dimension, old and new rating, reason, owner.
4. Who owns the final decision in the method?
- The calculation
- The executive
- The simulator
Show the answer
The executive.
5. What range do the simulator sliders cover?
- 0 to 100
- 0 to 10
- 1 to 5
Show the answer
0 to 100.
About the author
Stéphane Jambu
President, EQOS Forecast Asia
Stéphane Jambu leads EQOS Forecast Asia and works as a consultant in e-commerce, search visibility, and AI. LinkedIn profile
Sources: EQOS Asia method page (eqos-asia.com/method.html), simulator page (eqos-asia.com/simulator.html), 2008 back-test page (eqos-asia.com/case-studies/crise-2008.html), pricing page (eqos-asia.com/pricing.html), and contact page (eqos-asia.com/contact.html), consulted on 22 October 2026. Page updated on 22 October 2026.