Photon
Calder & ValeStructural engineering practice · 60 people · 6 decision makers
Sandbox · read only · fictional data
Solving · memory

Decision Memory

12 rules across 5 shapes, 10 of them proven against a reading — and 132 reuses between them. That reuse number is the only honest measure of whether this is a memory or a diary.

Confidence
Shape
12 of 12
  1. ProvenThe decision is not oursInés Ferrerused 23 times

    Concerns raised in meetings were lost by the time drawings were revised

    The ruleIn writing, to the drawing owner, copy one witness. Never verbally first.

    Before31% of concerns changed a drawingAfter58% of concerns changed a drawingover two quarters
  2. ProvenThe one you do not want to sayMara Calderused 31 times

    Raising a concern at 60% confidence felt unprofessional, so people waited

    The ruleState the concern with its confidence attached: 'I am 60% on this, and here is why.'

    Before4 concerns a month before tenderAfter7 concerns a month before tenderover five months
  3. ProvenThe decision is not oursMara Calderused 4 times

    A client asked us to soften a report's findings

    The ruleWe revise wording, never the finding. The finding lives in its own numbered section that is not edited.

    BeforeNo rule; handled case by case, twice badlyAfterUsed four times, no client lostover one year
  4. ProvenThe decision is not oursTobi Valeused 18 times

    Nobody knew which clients would recommend us, so nobody asked

    The ruleOne line in every closing email asking for a single introduction. Every time, forever.

    Before1 referral a quarterAfter4 referrals a quarterover four months
  5. ProvenNo room in the weekCora Blightused 11 times

    There was never a quiet week to write the templates in

    The ruleOne section per matter, written during the matter. Never scheduled as its own task.

    BeforeTemplates unstarted for 14 monthsAfterFour templates done in six weeksover six weeks
  6. ProvenNo measure survives manual entryCora Blightused 9 times

    Measures quietly went stale and nobody noticed until a review

    The ruleAny measure not updated in 30 days is flagged on the board, not quietly stale.

    Before4 of 8 measures over 30 days oldAfter0 of 8 over 30 days oldover three months
  7. ProvenNo room in the weekCora Blightused 7 times

    The fourth consecutive site morning was where people started making mistakes

    The ruleSleep is the job. Lights out at eight on site nights, defended like a delivery.

    Before2 of 5 mornings sharpAfter5 of 5 mornings sharpover two months
  8. ProvenThe decision is not oursInés Ferrerused 14 times

    In reviews the loudest two people consumed the whole hour

    The ruleNo open questions for the first ten minutes. Questions go to named people chosen before the meeting.

    Before2 of 9 engineers spokeAfter7 of 9 engineers spokeover two months
  9. ProvenThe decision is not oursCora Blightused 6 times

    Our indemnity insurer objected to published prices and to concern confidences

    The rulePublish ranges with the scope beside them, cleared once by the insurer, then never re-litigated.

    BeforeEvery price a separate approvalAfterOne clearance, reused 6 timesover three months
  10. ProvenThe one you do not want to sayMara Calderused 5 times

    Reports were being written more gently than the conversation that produced them

    The ruleIf we would not say it to the client's face, it does not go in the report either — in either direction.

    BeforeTwo reports contradicted their own meetingsAfterNo contradictions in five monthsover five months
  11. Unproven — not used to rankStructural, long horizonMara Calderused 2 times

    Two clients together are most of the revenue, and everyone knows it

    The ruleNo client above 20% of revenue. Decline new work from one that is, rather than grow it.

    BeforeLargest client 28%AfterLargest client 22% — but one quarter is not a trendno window yet
  12. Unproven — not used to rankNo room in the weekDev Ramanused 2 times

    Facade work went to subcontractors who missed deadlines and could not be stood behind

    The ruleFacade judgement is in-house or the job is declined.

    Before3 of 5 facade packages lateAfterNot enough jobs since to readno window yet

A rule with no reading behind it stays readable but never reaches the priority queue. That line is the difference between a memory that compounds and one that just remembers whatever was said most recently.