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Types of User Interface

Command Line
Command Line

A command-line interface or command language interpreter (CLI), also known as command-line user interface, console user interface and character user interface (CUI), is a means of interacting with a computer program where the user (or client) issues commands to the program in the form of successive lines of text (command lines).

Form Based
Form Based

Form-based Interface definition. A type of user interface used, for example, on the internet, to organize questions or options for the user so that they resemble a traditional paper form to be filled out by pointing to the fields and typing text, or by choosing from a list.

Graphical User Interface (GUI)
Graphical User Interface (GUI)

A graphical user interface (GUI) is an interface through which a user interacts with electronic devices such as computers, hand-held devices and other appliances. This interface uses icons, menus and other visual indicator (graphics) representations to display information and related user controls, unlike text-based interfaces, where data and commands are in text. GUIl representations are manipulated by a pointing device such as a mouse, trackball, stylus, or a finger on a touch screen.

Input Controls
Input Controls

Graphical user interfaces provide input controls that constrain input values to meet database integrity and validation rules. Sometimes, however, users need to enter data temporarily that is known to be invalid or not completely accurate.

Menu Driven
Menu Driven

A menu-driven interface lists menu choices that a user can select to navigate from one place to another within a website or software program. A menu-driven interface is part of a graphical user interface and has distinct advantages and disadvantages.

source: reference.com
Natural Language
Natural Language

Natural-language user interfaces (LUI or NLUI) are a type of computer human interface where linguistic phenomena such as verbs, phrases and clauses act as UI controls for creating, selecting and modifying data in software applications.

Navigational Components
Navigational Components

When the user changes the value, it does not change the format of the interface or other info on the screen. Icons An icon is a simplified image serving as an intuitive symbol that is used to help users to navigate the system.

source: usability.gov
image: audi.com