HCI

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what is HCI

Why HCI

Human Processor Model

Perception in computing

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interface

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It is the place at which independent and unrelated systems meet and act on or communicate with each other.

Command Driven

Menu Driven

GUI

Window

Icon

Mouse pointer

Pull down menu

Principles vs. Guidelines

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Principlesabstract design rules For example, “an interface should be easy to navigate”Guidelinesadvice on how to achieve principle may conflict; understanding theory helps resolveFor example, “use colour to highlight links”

Principles

Organization

Consistency

Screen Layout

Relationships

Navigability

Economize

Communicate

Guidlines Shneiderman’s 8 Golden Rules

Strive for consistency

Enable frequent users to use shortcuts

Offer informative feedback

Design dialogs to yield closure

Offer error prevention and simple error handling

Permit easy reversal of actions

Support internal locus of control

Reduce short-term memory load

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