Create an adequate environment

To begin with, you need an Atlassian domain that features Confluence.

To use DMC you need to create at least two spaces. One of them will be the single source of truth. To comply with the norms, you need to configure this space to make it read-only to every user. If you need help for this step, please refer to this article: How to Quickly Make Confluence Space Read-Only | Stiltsoft