> The major problem is namespace collisions between ElementTypes.
 > Does anyone have a solution?  What if the incompatible document is
 > in a separate valid document (i.e. with DOCTYPE).  I'd value
 > ideas/epxerience here, otherwise we will have to produce some
 > kludge.
The solution is to define tables (etc.) as base architectures, and
then to map specific DTDs using architectural forms, something like
this:
  <?ArcBase xmlTable>
  [notation and entity declarations omitted]
  <!ELEMENT table     (tr+)>
  <!ATTLIST table
    xmlTable #FIXED "xmlTable">
  <!ELEMENT tr        (tc+)>
  <!ATTLIST tr
    xmlTable #FIXED "xmlTableRow">
  <!ELEMENT tc        (#PCDATA)>
  <!ATTLIST tc
    xmlTable #FIXED "xmlTableCell">
Presto -- no element-type-name collisions!
All the best,
David
-- David Megginson ak117@freenet.carleton.ca Microstar Software Ltd. dmeggins@microstar.com University of Ottawa dmeggins@uottawa.ca http://www.uottawa.ca/~dmeggins