Deployment Issues

Intermediaries can provide functionality not available at client:

• DOI support
• XML support / format conversion
• Authentication

More sophisticated deployment techniques can be adopted to overcome deficiencies in simple model

HTML resource

Web server

Web server simply sends file to client

File contains redundant information (for old browsers) plus client interrogation support

HTML / XML / databaseresource

Server proxy

Client proxy

Original Model

Sophisticated Model

IntelligentWeb server

Example of an intermediary

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