Tom Johnson of I'd Rather Be Writing fame has written an excellent piece on the Diátaxis documentation approach, in the context of other approaches to documentation problems: https://idratherbewriting.com/blog/what-is-diataxis-documentation-framework
I’d Rather Be Writing Blog and API doc course · What is Diátaxis and should you be using it with your documentation?The Diátaxis approach to documentation organizes technical documentation into four types — tutorials, how-tos, reference, and explanation. In this post, I compare Diátaxis to DITA, Information Mapping, and the Good Docs Project, explaining similarities and differences. I also point out why identifying information patterns can be so worthwhile as a technical writer, and how identifying these patterns not only grounds our practice in the larger practice of rhetoric but also gives us useful patterns to use with AI tools.