Terminologies

Command Language Interfaces
An interface types whereby users enter explicit statements into a system to invoke operations.

Dialogue
A sequence in which information is displayed to and obtained from user.

Menu
An interaction methods in which a list of system options is provided and a specific command is invoked by a user selection.

Natural language interfaces
An interface types it permit users to interact with the computer in their everyday or natural language.

Question-and-answer dialogue
An interface type where the system displays a question to the user on the screen.

User interface
A method by which users interact with an information system.