#2 Re: Elements cannot be described more than once in DTD, right ?

[Rick Jelliffe]

I forgot another option.

Make one generator-side DTD for data entry
 <!ELEMENT  affiliate ( a_operations, ...)>
 <!ELEMENT mechant (m_operations, ...)>
 <!ELEMENT a_operations (get, set)>
 <!ELEMENT m_operations ( signup )>

Then transform this for data distribution:
 <!ELEMENT  affiliate ( operations, ...)>
 <!ELEMENT mechant ( operations, ...)>
  <!ELEMENT operations (signup | (get, set))>

The first gives you strong typing for describing the schema
and the second allows simpler generic operations for using
the data (which is presumably why you want to reuse
the name "operations".) 

Rick Jelliffe


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