Chapter Fifteen

Authorization rules Controls incorporated to restrict access to systems and data and also to restrict the actions that people may take once in the system.
Biometric device An instrument that detects personal characteristics such as fingerprints, voice prints, retina prints, or signature dynamics.
Command language interaction A human-computer interaction method where users enter explicit statements into a system to invoke operations.
Dialogue The sequence of interaction between a user and a system.
Dialogue diagramming A formal method for designing and representing human-computer dialogues using box and line diagrams.
Drop-down menu A menu positioning method that places the access point of the menu near the top line of the display; when accessed, menus open by dropping down onto the display. See also Pop-up menu.
Form interaction A highly intuitive human-computer interaction method whereby data fields are formatted in a manner similar to paper-based forms.
Icon Graphical pictures that represent specific functions within a system. See also Object-based interaction.
Interface In human-computer interaction, a method by which users interact with information systems.
Menu interaction A human-computer interaction method where a list of system options is provided and a specific command is invoked by user selection of a menu option. See also Drop-down menu, Pop-up menu.
Natural language interaction A human-computer interaction method where inputs to and outputs from a computer-based application are in a conventional speaking language such as English.
Object-based interaction A human-computer interaction method where symbols are used to represent commands or functions. See also Icon.
Pop-up menu A menu positioning method that places a menu near the current cursor position.
Smart card A thin plastic card the size of a credit card with an embedded microprocessor and memory.
View A subset of the database that is presented to one or more users.

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