single sign-on

This is a session/user authentication process that permits a user to enter one ID and password in order to access multiple applications. It eliminates future authentication prompts when the user launches additional applications during the same session.

authenticate

The process of determining whether someone or something is, in fact, who or what it is declared to be. In private and public computer networks (including the Internet), this is commonly done by providing a user ID and password as credentials.

concurrent connected user

A sharable license that the user conceptually grabs from the license pool when needed and returns to the pool when no longer needed.

content delivery agents

Specialized software modules that acquire, generate and present information in an access center. Administrators place them on access center pages to make information and services available to end-users. They are distributed in packages that contain executable code and help files.

3-DES

Triple Data Encryption Standard. 3-DES uses three 64-bit keys for an overall key length of 192 bits. The procedure for encryption is exactly the same as regular DES, but it is repeated three times. The data is encrypted with the first key, decrypted with the second key and finally encrypted again with the third key. 3-DES can be billions of times more secure than DES.

ICA Client

Independent Computing Architecture. This is a software component that executes on the device and is necessary for users to connect to and use applications on MetaFrame Presentation Server.

Aggressive Synchronization

Determines whether or not to synchronize credentials, agent settings, first-time-use criteria and password policies whenever a user launches a known Windows or Web application, an unknown Web application or Logon Manager.

MSI

An installation package based on Microsoft's Windows Installer Service. It is created either by a software manufacturer or by using a software packaging product that builds MSI packages. MSI packages work well for application suites where several components are included in the package.
MetaFrame XP Presentation Server is an example of a suite that ships as an MSI package for installation on target servers.

terminal emulators

Allows a user to connect to a mainframe, AS/400, OS/390, UNIX or other host-based session through a program on a Windows workstation.

HLLAPI

High Level Language Application Program Interface. An IBM API that allows a PC application to communicate with a mainframe computer. This API is also called screen scraping because the approach uses characters that would otherwise be displayed on a terminal screen.

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