The  edge markup languageedge is a markup language designed for generic documents. It
aims to be as general as necessary for the every day document and
text production. It is not limited to a speicific type of
documents (like 'technical documentation' or 'encoding of
books'). It has a modular layout, very similar to that of the TEI dtd.
Beside a small core set of tags for hierachical structuring of
documents (like book, article, or set) and
core markup (like paragraphs, lists and examples), it provides a list
of additional markup sets. It very simple to extend edge by adding
new sets of tags. edge is an application of SGML, like HTML or DocBook. So
everything you know about other DTDs is useful for edge, too. The edge markup language is 'only' a dtd. So tagging
documents and texts can be done in a application indepandant way. It
is used to markup documents in a semantic way. But the real world
wants to use documents, and therefore special tools are needed to
work with text marked up in such a way. The edge dtd is
accompignated by a set of DSSSL stylesheets. They are used to render
generic edge documents for printing or for HTML. | 
