> For the complete documentation index, see [llms.txt](https://usecaseframework.openactive.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://usecaseframework.openactive.io/develop/supporting-tools.md).

# Supporting tools

* [Principles for OA infrastructure adoption](https://www.openactive.io/about/digital-guiding-principles/)
* [OA Specifications](https://developer.openactive.io/specifications/specifications-overview)
* [The Government Digital Service Manual](https://www.gov.uk/service-manual)
* [MEL Framework](/appendix-three-mel-framework/overview.md)