https://urdad.org/news/ Releases of the URDAD tool suite and articles about the method. 2026-10-27T00:00:00.000Z URDAD © Solms Training & Consulting CC, CC BY 4.0 https://urdad.org/news/sites-open/ 2026-10-27T00:00:00.000Z 2026-10-27T00:00:00.000Z

The URDAD web site and its documentation site are public — the method, the tool suite, example models, the user manual and the specifications of the model and its two languages.

<p>URDAD now has a public home. <a href="https://urdad.org/">urdad.org</a> says what the method and its tool suite offer, and <a href="https://docs.urdad.org/manual/">docs.urdad.org</a> holds their documentation. Everything published there is openly licensed, under <a href="https://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>.</p> <h2 id="learn-the-method">Learn the method</h2> <p><a href="https://docs.urdad.org/method/">The URDAD method</a> introduces the method without presupposing any tool: its principles, the steps it repeats at every level of granularity, and two models worked through from their use cases to the processes that realise them. The <a href="https://docs.urdad.org/cheat-sheet/">cheat sheet</a> puts the notation on two pages, every symbol drawn as the modelling tool draws it.</p> <h2 id="look-something-up">Look something up</h2> <ul> <li>The <a href="https://docs.urdad.org/manual/">user manual</a>, for how the tool behaves, from modelling to deploying an instance.</li> <li>The <a href="https://docs.urdad.org/specification/">model specification</a>: every element of a URDAD model, generated from the model’s JSON schema, which is itself <a href="https://urdad.org/schemas/urdad.schema.json">published at its identifier</a>.</li> <li>The specifications of <a href="https://docs.urdad.org/urdad-ocl/">URDAD-OCL</a> and <a href="https://docs.urdad.org/urdad-feel/">URDAD-FEEL</a>, the two notations a model’s conditions are written in: their grammar, meaning and standard library.</li> <li>The <a href="https://docs.urdad.org/glossary/">glossary</a>, with every term at an address of its own.</li> </ul> <h2 id="see-it-applied">See it applied</h2> <p>The <a href="https://urdad.org/resources/examples/">example models</a> are complete models with their views as the tool draws them, ready to download and import. To try the tool itself, <a href="https://urdad.org/trial/">request a trial</a>.</p>