Licensing

FerroCHART is source-available under the Business Source License 1.1, with no open-core tier. The compiler, the renderer, the server and the tools are in one repository under one licence, and nothing is held back to be sold back to you.

What you may do without asking

Read, build, modify and redistribute the source, without a fee. Every non-production use is covered: development, testing, evaluation and prototyping.

Production use

Production use is free for Non-Commercial Purposes, which the licence defines as personal use, academic or scientific research, teaching, and use by a non-profit organisation or public body that is not in the course of a business, does not deliver a service for payment, and is not for commercial advantage.

Any other production use needs a commercial licence from the Licensor. A hospital, clinic or care provider running FerroCHART for its patients needs one, and so does a vendor, integrator or any company running it in production. Offering FerroCHART, or a work derived from it, to third parties as a hosted, managed or embedded service needs one in every case, and so does selling, sublicensing or otherwise distributing it for a fee.

A commercial licence is arranged with Cadasto B.V., the Licensor, which handles the business side of FerroCHART: write to info@cadasto.com or use https://www.cadasto.com/contact/. Technical questions go to the maintainer named in MAINTAINERS.md.

Four years later

Each version becomes available under the Apache License 2.0 four years after its publication. That is the licence’s Change License, and it is the only place Apache 2.0 appears as a licence of this project’s own code.

Contributions

A contribution is licensed under the same licence. You keep your copyright, and you grant the Licensor the relicensing right in CONTRIBUTING.md § Licensing of contributions, recorded by a checkbox in the pull request.

Vendored material

Vendored specifications and third-party material keep their upstream terms, recorded in a PROVENANCE.md beside each vendored tree. The vendored openEHR CKM templates are CC-BY-SA-4.0 and CC-BY-SA-3.0, and nothing there is relicensed.