Fulcrum

Organisational Decision Architecture Sandbox

The Decision Architecture series, made playable. Model any organisation, read its structural health from 0 to 100 and find the moves that make it stronger.

Builds are published on the releases page as they ship.

Local-first·No cloud, no account ·GPL-3.0 + LGPL-3.0
Who it is for

Built for the people who own structure

Fulcrum is a thinking tool for the roles that answer for how an organisation is shaped and how it decides: software architects, senior and principal engineers, CTOs and the wider C-suite.

Software architects

Reason about authority boundaries, coupling and dependency structure as a system you can score, not a diagram you argue over.

Senior and principal engineers

See why an organisation slows as it scales and which structural move removes the bottleneck instead of working around it.

CTOs and engineering leaders

Test a reorg, a delegation or a boundary change against the model before you test it on people, then read the trade-off as one number.

Founders and the C-suite

Make the shape of the organisation legible: where decisions stall, where authority is missing and where growth will bite.

The model, made incarnate

A model you can hold

Decision Architecture argues that organisations succeed or fail by their structure, not by effort. Fulcrum turns that argument into an engine you operate directly: the decision objects, authority worldlines and structural moves from the books, scored live by a deterministic model.

01

Structural moves

Delegate authority, stabilise interfaces, realign incentives or collapse a boundary. Every move is scored from blunder to great.

02

Signals to watch

Handoff queue age, escalations, rework and influence without authority: the lagging indicators, each with its own definition.

03

A guide to a stronger org

Ask for the guide and the planner shows a move-by-move line from where you are to a stronger score, the way an engine shows its line.

04

Yours, on your machine

Generate a level, model your own organisation or import one as JSON. There is no account and no server; nothing leaves your machine.

Play by play

Watch a score climb, move by move

Load an organisation and the board scores its structural health, maps who decides locally against who escalates and lists every move open to you.

The Fulcrum board scoring an organisation's structure
The position. The Legal section of a generated organisation, scoring 14.8 out of 100. Stick figures mark who decides locally against who escalates and arrows trace the dependencies between its sub-domains; the right-hand list is the strong moves the section opens up.
The Fulcrum guide planning a stronger org
The line. The guide plans the climb move by move, 14.8 to 99.1, each step classified from blunder to great. It opens by delegating authority to the teams everyone depends on.
The foundation

Built on the Decision Architecture series

Fulcrum scores organisations with a model whose moves, signals and core ideas come from the Decision Architecture series by Oliver Ernster. The four volumes build the thinking the game puts into play; the hardback collects all four in one reference edition.

Decision Architecture cover

Decision Architecture

How technical organisations fail and recover

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Decision Architecture Patterns cover

Decision Architecture Patterns

Structural patterns that recur across technical organisations

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Decision Architecture: The Move Space cover

Decision Architecture: The Move Space

A Positional Model of Organisational Change

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Relativistic Decision Architecture cover

Relativistic Decision Architecture

The geometry of decision systems

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