Natural Language Interaction Style

Interaction Styles

Interaction can be defined as a interference between the computer and the human. There are some applications that have very definite styles of interaction.

Some common interaction style categories of applications are as follows:

• Natural language

• question/answer and query dialogue

• Command line interface

• Menus

• Form-fills and spreadsheets

• Point and click

• WIMP

Natural language Interaction

Natural language interaction is very attractive mode of interaction.Because it is simple to learn.e.g command type of interaction is difficult (In command type we have to learn the commands.) here familiar speech recognition or typed natural language can be used

The forms of natural language interaction are speech and

There are some difficulty available in the natural language.e.g parsing the language is difficult. Problems that are available in Natural language are Vague and ambiguous.

But here question parsed into words to form query.

COMMAND LINE INTERFACE

This type of interaction style is widely used.It is the way to express commands to computer directly.This interaction style can use the function keys,single characters,short abbreviations or whole word commands.

• It is better for experts’ users than novices.

•It is Suitable for repetitive tasks

•The commands names and abbreviations used here are meaningful.

•It Offer direct access to system functionality

For designing good command line interfaces the commands should use vocabulary of the user not of the technician or system.It is required the consistency from one command to the next.

MENUS

Here set of options shown on the screen. Options visible so demand less recall - rely on recognition so names should be meaningful. It is used on the text based and gui based syatems.In the text based system the options may be numbered.Here the shortcuts and accelerations are also possible.Selection here by using mouse, numeric or alphabetic keys. Often options hierarchically grouped: sensible grouping is

• Windows can be resized or move.

• can overlap and obscure each other, or can be laid out next to one another

• Scrollbars allow the user to move the contents of the window up and down or from side to side

• Title bars describe the name of the window

Icons

Small picture or image, used to represent some object in the interface, often a window. Windows can be closed down to this small representation (iconised) allowing many windows to be accessible. Icons can be many and various - highly stylized or realistic representations.

Pointers

Important component, since WIMP style relies on pointing and selecting things such as icons and menu items.

• Usually achieved with mouse

• Joystick, trackball, cursor keys or keyboard shortcuts are also used

• Wide