# From the Island Zoo to One Source of Truth: An Example Path

> A realistic example path to tool consolidation in three stages — each pays off immediately, without rebuilding everything at once.

How does a business actually get from the island zoo to one source of truth — without overturning everything at once? Anyone who senses that their scattered tools create more friction than benefit asks themselves this. This article shows one possible path with an invented but realistic example. No magic recipe — a picture of what it could look like for you.

## The starting point: the island zoo

Take a small service business — say, a studio with three employees. The digital landscape has grown over the years: a website with one provider, the booking tool with the next, the newsletter somewhere else, the customer list in a spreadsheet, the invoices in a program of their own. Seven tools, seven logins, no connection.

The pain doesn't show as a catastrophe, but as daily friction: a changed opening time is still wrong in three places after two weeks. A customer asks about her last booking — the answer takes ten minutes of searching. No one knows exactly which channel brings the most inquiries.

## Stage 1: lay the foundation

The first step isn't to throw everything away. The first step is to create a single base where the core data is at home from now on: services, prices, opening hours, location, the most important customer information. This base becomes the new source of truth (SSoT) — even before a single old tool is switched off.

From now on a simple rule applies: new or changed core data is only maintained here. The sprawl isn't stormed, but cut off from its food.

## Stage 2: connect channels instead of maintaining twice

Now the data flows from the foundation to where it's needed — onto the website, into the public profile, into the channels that count. What used to be typed separately in every place is now maintained once and up to date everywhere automatically.

The effect is immediately tangible: the changed opening time is correct everywhere with one move. The contradictions that used to cost customers disappear — not because someone is paying attention, but because there's only one version.

## Stage 3: dismantle the islands

Only now, when the foundation holds and the channels are supplied, are the old island tools replaced one after another. Not in one big overnight action, but one at a time — always when its task has been cleanly taken over by the foundation. Every switched-off island saves a subscription, a login and a source of error from that moment on.

## What this example shows

Consolidation isn't a leap, but a path in stages — and every stage pays off immediately, not only at the end. You don't have to rebuild everything first to gain something: the foundation alone already takes friction out. The rest follows at the pace that suits your business. This could look like this for you too.

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Source: https://btlabs.dev/en/posts/from-island-zoo-to-source-of-truth
Last-Modified: 2026-07-14T09:15:12.715Z
Languages: [de](https://btlabs.dev/llms/de/posts/vom-insel-zoo-zur-quelle-der-wahrheit) · [it](https://btlabs.dev/llms/it/posts/dallo-zoo-di-isole-alla-fonte-di-verita)
See also: [llms.txt](https://btlabs.dev/llms.txt) · [ai.txt (Policy)](https://btlabs.dev/ai.txt) · [identity.json](https://btlabs.dev/identity.json)