Basic HTML version of Foils prepared June 24 99

Foil 28 Basic Multi Tier architecture

From Distributed Objects and Portals for Earthquake Science GEM Meeting NPAC -- June 24-25 99. by Geoffrey C. Fox
Objects (at "logical backend") can be on client of course
Front end can define a generic (proxy for a) object. The middle control tier brokers a particular instantiation
Broker or Server
XML
Result
XML Query
Rendering Engine
Browser
Rendering Engine
HTML
Universal Interfaces
IDL or Templates
XML Request for service
followed by return of XML result

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