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Select a service providerBuy or lease equipmentReplace a supplier

Options
Reasons
Criteria

Decision Decide whether to launch our new service nationally, test it in one region, or postpone the launch.

What are the options?

They are being written now. Each one is a different answer to your question — correct them, remove them, or add your own.

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Back Continue one call · four short sentences

What is for and against each one?

A reason is anything in favour. A risk is anything against. Both are optional, and both are yours to change.

option Launch nationally in one go, on the date already announced internally. 2 reasons · 1 risk

Why this could work

supported by

The market window is open now, and no competitor has announced anything comparable.

Sales have been briefed and the campaign is booked.

Add a reason

What could go wrong

opposed by

Support is two hires short, and a bad first month is the version people remember.

Add a risk

option Test in one region first, then decide on the national rollout. 2 reasons · 1 risk

Why this could work

supported by

A region is small enough to fix what breaks before it reaches everyone.

Real pricing and demand data before the money is committed.

Add a reason

What could go wrong

opposed by

A staged rollout delays national revenue by at least a quarter.

Add a risk

Back Continue the third option is below · nothing saved yet

What will you compare them on?

These are the columns your options get compared in. Change the wording, the type, or the values you will choose between.

Revenue in the first year Currency

Time to full national coverage Duration

Support load at launch Text

Regions covered Number

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See what you have built 1 decision · 3 options · 6 reasons and risks · 4 criteria

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Saved. It is yours now. 1 decision · 3 options · 6 reasons and risks · 4 criteria · the criteria are ready as columns in Comparison Open Comparison Guide another decision saved · every later change is versioned in History

D1 Decide whether to launch our new service nationally, test it in one region, or postpone the launch.

answers

O1 Launch nationally in one go, on the date already announced internally.

answers

O2 Test in one region first, then decide on the national rollout.

Edit text Reason for Reason against Evidence Detail Ask someone History

This is where you carry on: correct what the guide drafted, add evidence under an option, or ask a colleague for the part you do not have. Values for your criteria live in Comparison.

supports

EV1 A region is small enough to fix what breaks before it reaches everyone.

opposes

R1 A staged rollout delays national revenue by at least a quarter.

answers

O3 Postpone the launch until the support team is fully staffed.

What is 1D2A

Tools for decisions that need input from others, comparison between options, and a clear record.

Use 1D2A when rationale needs to be developed and preserved, options are not straightforward, decisions are consequential, accountability is important, immutable records matter, outcomes need to be monitored, and lessons can be learned.

The decision and its information graph

Options, evidence, assumptions, risks and objections are separate things you can point at and argue with — not paragraphs buried in a document.

Agreements, disagreements, and approvals

Every decision leaves follow-up work and someone who has to agree. 1D2A tracks both, by owner and by date, and closes them when the work exists.

Immutable and auditable records

Nothing is overwritten. What was known, who objected, and who approved stays readable when someone asks about it months and years later.

P37 Automate, assist or retain manual visual inspection on a finishing line 35 nodes · 4 options account_treeListtable_rowsTablehubGraphdescriptionDocumentcenter_focus_strongFocus

D1 Should visual inspection on the finishing line be automated, used to assist the inspectors, or left manual?

requires

C1 Constraint. A defect escaping to the customer is a warranty and reputation event, and two of the four largest customers require notification of any change to the inspection method before it takes effect. No option may raise the escape rate above the current level.

answers

O2 Assist: machine vision flags candidate defects, an inspector adjudicates every flag

editEdit text thumb_upReason for auto_awesome thumb_downReason against auto_awesome fact_checkEvidence auto_awesome notesDetail auto_awesome person_addAsk someone historyHistory

supports

EV5 In the vendor trial on 4,000 labelled production parts, the model and the incumbent inspectors missed largely different defects. Coarse classes were detected by the model at a higher rate than by inspectors; fine classes at a substantially lower rate.

opposes

R3 Risk. The escape estimate depends on the model and the inspector failing independently. A defect class that is hard for both — a low-contrast crack under the same lighting that defeats the model — breaks that assumption, and the trial sample contained too few such parts to test it.

answers

O4 Split by defect class: automate the coarse classes, retain manual inspection for the fine ones

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