Microsoft Exchange is a server-based messaging system which provides access to electronic mail, shared calendaring and scheduling, and other collaborative services.  It is the central repository where users messages and calendar events are stored and managed, and allows users to access their messages and data using desktop clients (such as Outlook or Entourage), a web-based interface (Outlook Web Access), or via mobile devices running which support the Windows Mobile 6 platform.

• • • Exchange is a server based messaging system that will be used as the email and calendaring solution

Microsoft Outlook is a piece of client software that users of Microsoft Windows and Vista use to access the electronic mail and calendaring features provided by Microsoft Exchange servers.  Outlook is designed specifically to work with Exchange and provides the user full access to all Exchange features, as well as helping to maintain the users personal contact lists and locally archived messages.

• • • Outlook is an email client for Windows users
    • Outlook allows Windows users to access email and calendar features
    • Outlook allows full access to al Microsoft Exchange features

Microsoft Entourage is a piece of client software that users of Mac OS X use to access the electronic mail and calendaring features provided by Microsoft Exchange servers.  Entourage is designed specifically to work with Exchange and provides the user access to Exchange features, as well as helping to maintain the users personal contact lists and locally archived messages.

• • • Entourage is an email client for Macintosh users
    • Entourage allows Mac OS X users to access email and calendar features
    • Entourage allows access to Microsoft Exchange features

Outlook Web Access (OWA) is a web-based client used to access the electronic mail and calendaring features provided by Microsoft Exchange servers.  OWA offers a web interface that very closely matches the features and appearance of the Microsoft Outlook desktop client.  Internet Explorer 6 or later is required to support the full range of capabilities provided by OWA, but most features can be accessed from most browsers and across platforms.

• • • OWA is a Microsoft web based email client
    • OWA offers access to email and calendar features via a web interface
    • Browsers allow user access to either OWA Premium or OWA Light
      • Safari and Firefox allows access to features in OWA Light
      • Internet Explorer 7 allows access to features in OWA Premium