Software · Data · Knowledge

Find the model.
Build what works.

Den Ouden Consultancy turns complex problems into clear structures, and clear structures into products people use: realtime audio, living stories, live diagrams and practitioner papers.

See what we build Read the papers ↗

HOW A SOLUTION TAKES SHAPE

01
Listen
Hear the real question behind the request.
02
Abstract
Find the structure underneath the noise.
Build
Ship it, run it, learn from it.
04
Model
Make it explicit, and let the gaps show.
03
The Den Ouden Consultancy rat

What we build

Varied portfolio.
One way of thinking.

Each one started as a model on paper: what goes in, what comes out, and what must never leak in between. Designed, built, hosted and supported in-house.

NowDSP logo
01 · REALTIME AUDIO

NowDSP

A complete digital signal processor, in a browser tab.

Plug in a guitar, bass, keys or mic and play through 65 effects, several rigs at once. Name a song and it sets up the sound. Every effect is open maths you can rewrite while you play, and your audio never leaves your device.

65 effects Free in the browser Native apps ~12 ms
Start playing, free ↗
The NowDSP app: oscilloscope, spectrum and a chain of Overdrive, Echo and Chorus
Once Upon This Time pearl
02 · LIVING STORIES

Once Upon This Time

A story that wasn’t written before you arrived.

Write a line about what’s on your mind, or nothing at all. The book is written page by page while you read, in your own language, and the scene behind it moves with the story.

First chapter free The whole book €6.95 No account
Begin your story ↗
Claro, the mascot
03 · LIVE DIAGRAMS EARLY ACCESS

Claro

You talk. Claro draws.

Claro listens to a design session and draws the architecture, the process, the data model and the decisions while you talk. What is still open shows dashed; a contradiction stays marked until the room settles it. Leave the meeting with the diagrams already done.

Eleven kinds of diagram Ten languages Mermaid, repo, Miro
Watch it draw a meeting ↗
Claro drawing a data model, infrastructure and a support model live during a design review

04 · Knowledge papers

Hard-won practice, written down

Practitioner papers for leaders, architects and engineers: real cases, honest trade-offs, a “when not to use this” section, and tools you can use on Monday. Single and team licences.

All papers on Gumroad ↗
LEADERSHIP · ARCHITECTURE · 33 PAGES
When We Stop Asking Why
How leaders build the monsters they complain about, and how to recognise a shared platform drifting into one.
€39
team €299
INTEGRATION · MOVEX & M3 · 47 PAGES
Opening up Movex and M3
From MvxSock to Logic Apps: a self-describing REST layer over the MI socket, generated from M3’s own metadata.
€59
team €449

How we work

Four habits behind everything

01

Model before you build

Find the structure underneath first. The code follows from it, and stays changeable because of it.

02

Make the gaps visible

What is unclear or disputed should show, early, while the right people are still in the room.

03

Private by design

No accounts where none are needed. Your sound, your story, your meeting stay yours.

04

Build it, ship it, run it

From the first sketch to hosting and support, we own the whole line, so nothing is lost between hand-offs.

Portrait of Ingolf den Ouden

About · Founder

Ingolf den Ouden

For more than twenty-five years, Ingolf has turned tangled systems into ones people can understand, trust and change.

His instinct is to look for the model underneath: how the data, the software and the people around them actually fit together. He moves easily between altitudes, from a sketch of a whole landscape to the low-level code that makes one piece of it run, and between people, bridging business and engineering across many countries and cultures. Teams that work with him end up seeing the same picture, and able to carry on without him.

A physics-leaning mind with a lifelong pull towards abstraction now goes into products of his own: signal processing in realtime, stories written as they are read, conversations that become diagrams, and papers that put hard-won practice on the page.

  • Abstraction & modelling
  • Systems & data architecture
  • Hands-on engineering
  • Business ↔ technology
  • Mentoring & knowledge transfer
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