The Gateway System
Goals
Design Issues
Towards a complete solution ...
Three-Tier Architecture
Target Architecture
Portal Page
User and Group Profile
Control Applet
Screen Dump of the Control Applet
Application Domain DataBases PSE Example: CCM
PPT Slide
Selecting a Predefined Task
Visual Authoring Tools
Example: Data Flow
Example: DARP
Example of a portal
Processing Task Specification
Other toolboxes
CORBA Based Middle-Tier
WebFlow Server
WebFlow Context Hierarchy
Module functionality
Middle-Tier modules serve as proxies of Back-End Services
Back End Services
WebFlow over Globus
Security Model (Keberos)
Email: gcf@npac.syr.edu
Home Page: http://www.npac.syr.edu