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Proven Portals: Best Practices for Planning, Designing, and Developing Enterprise Portals by Dan Sullivan

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Tier 1: The Presentation Layer

The role of the presentation layer is to provide a unified view to segmented business processes. Before portals, users were accustomed to working with a variety of desktop applications, such as word processors, spreadsheets, and presentation programs. Over time, these common applications became more integrated and at least had a common look and feel. While that move was a step in the right direction, users were too often switching between several distinct programs to keep up with their daily work. For example, it is not unusual for a single user to:

  • Start a terminal emulation program to access a mainframe for financial information

  • Log on to a UNIX server through a TELNET session to get daily production information ...

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