Importance of Usability in Web Design: Creating Effective Websites, Slides of Introduction to Computing

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CS101 Introduction to Computing

Lecture 25

Web Design for Usability

During the last lecture …

• We looked at the role of heuristics in architectural (or high-level) design
• We also became familiar with a few popular design heuristics

Caution! Caution!

Heuristics don’t always lead

to the best results

At times they even lead to the

wrong ones, but mostly to results

that are good-enough

Given many parts of a system to be designed/built,

do the hard part 1st

7

When I look at a Web page it should be self-evident, obvious, self-explanatory

I should be able to ‘get it’ - what it is & how to use it - without expending any effort thinking about it

excerpt from Steve Krug’s book Don’t Make Me Think

8

don’t make me think!

What’s a Good Site?

• The one that achieves the result that it was designed for
• Generally, that result can only be achieved by giving the user what s/he wants, as quickly as possible, without her/him expending much effort
• One definition of usability: Let the user have what s/he wants, quickly, without much effort
• “Quickly” is important! (^) Docsity.com 10

speed!

think roadside billboard

rather than Dewan-e-Ghalib

Simplify, simplify,

simplify!

Designs should be

consistent &

predictable

(unified)

Elements of Website Design

1. Navigation scheme
2. Layout of information
3. Overall look and feel