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The
DTD is the contract how to find data in the document base
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Major
DTD types:
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Layout
oriented DTD
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focus
on redition
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oriented
on capabilities of publishing tools
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suitable
for layout oriented document base
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Presentation
oriented DTD
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focus
on presentation structures
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flexible
layout on different media
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appropriate
for presentation oriented document base
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Database
oriented DTD
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representing
data models
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essential
for data exchange on all levels
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The
character of the required DTDs is determined by the
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objectives
on the document base
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