(adapted from Dot Porter @)
The EPT (Edition Production Technology) is designed, as James says below, as "a tool for assisting less-technical resource creators to develop more sophisticated electronic editions." It is designed and developed through the Electronic Boethius and ARCHway Projects (both with PI Kevin Kiernan) at the University of Kentucky.
The EPT enables an editor to:
1) Create a project by importing digital images, transcript (which can be a pre-existing XML document, or a text document with no markup), and a DTD or set of DTDs. (Details on what I mean by "set of DTDs" - not TEI tagsets! - can be found by following the tutorial links on the demo site).
2) Insert markup into this project through user-friendly, completely configurable markup templates. In the EPT the editor views text & image side-by-side, and the markup software includes functionality for connecting pieces of text with the corresponding image sections.
3) The full version of EPT includes additional tools for more advanced editing - collation (tools for both types - comparing versions of the same text, and describing the structure of the physical object), statistical analysis, paleographic description, glossary development.