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NOTE: |
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a name is dereferencable (a block can be found) as long as |
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there is a server holding it. therefore, quality of service |
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*can* be 'bought' as needed. |
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Many hypermedia systems place each document and link in the custody |
Many hypermedia systems place each document and link in the custody |
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of one server, rendering it unusable when connectivity fails. |
of one server, rendering it unusable when connectivity fails. |
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For example, on the web, when connection to a server fails, |
For example, on the web, when connection to a server fails, |