Arguably, Drupal is an excellent CMS; it’s used by “hundreds of thousands of projects” (from professional to proprietary to educational); it’s the platform I selected for my most recent DH project; and it’s one I’d recommend to others (it’s learnable; teachable; extensible). But I would by no means necessarily advocate Drupal over any other CMS.
Academic and corporate clients seeking digital journals or other types of web publications regularly require platforms that support standards-based XML. This tutorial explains how to customize a Drupal implementation to develop publications that enable editors, authors, and users to submit and edit content in standards-based XML, where the standard can be enforced using server-side validation settings. For illustrative purposes, the discussion references TEI XML, the markup standard in widespread use in academia.