Basic HTML version of Foils prepared July 6 99

Foil 5 Three-Tier Architecture

From Overview of Gateway System ACM Java Grande Meeting -- June 12-13 99. by Tom Haupt
Back-End services
comprise Tier 3.
Distributed, object-based,
scalable, and reusable
Web server, Object broker
and Resource Manager
Middleware forms Tier 2
Tier 1 is a high-level, browser-based Front End
for visual programming (including selection of applications,
generation of input data sets, specification of resources,
post-processing and visualizations)

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