Transcript Web Page Design

Web Page Design
http://www.netskills.ac.uk/
© Netskills, Quality Internet Training
University of Newcastle
Netskills is a trademark of Netskills, University of Newcastle.
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© Netskills Quality Internet Training, University of Newcastle
Topics
Purpose & audience
 Structure & navigation
 Quality of content
 Speed
 Accessibility
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Issues & solutions
© Netskills Quality Internet Training, University of Newcastle
Purpose & Audience
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What is the purpose of
your site?
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Design for your target
audience - consider:
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Inform?
Educate?
Entertain?
Persuade?
Network speed
Available hardware/
software
Skill level
User expectations
© Netskills Quality Internet Training, University of Newcastle
www.google.co.uk
news.bbc.co.uk
www.next.co.uk
Structure and Navigation
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Can people easily find what they want?
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Maximum 'half dozen clicks'
to find information
Most web sites are non-linear
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No start and end to a web site
Entry not necessarily via home page
Good navigation a product of good structure
 Make clear and consistent
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Methods of Navigation
Global and local navigation
 Frames, button bars, image maps, text links…
 Other useful navigational features:
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Site map
Table of Contents
Search facility
blackpoolzoo.org.uk/basecamp
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Quality of Content
Up-to-date & relevant
 Writing style
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Provide
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Clear and simple
Ensure correct spelling, grammar etc
Contact details
Feedback mechanism
What’s New?
Last Updated
Copyright notice
© Netskills Quality Internet Training, University of Newcastle
Speed
Try to make sites quick to load
 Images can make sites slow
 Be careful with use of images
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Reduce loading delays
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Decoration or information?
Use sparingly
Use thumbnails where practical
Keep images as small as possible (=<50K)
Use WIDTH and HEIGHT attributes
Store images in a separate directory
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Accessibility Issues
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For some users, sites
may be difficult or
impossible to use
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Small text, poor colour
combinations
Inaccessible to certain
browsers - text browsers,
speech synthesisers
W3C standards for accessibility
www.w3.org/WAI
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Increasingly, legislation requires sites are
accessible
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Improving Accessibility (1)
Test pages on several types of browser
 Keep your site clear, simple and consistent
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Use logical tags instead of physical
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Content, structure and navigation
Physical indicate appearance <B>
<I>
Logical indicate meaning <STRONG> <EM>
Focus on structure rather than appearance
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For example, don't use headers for font effects
Current W3C Recommendations
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Deprecation of style in HTML
Use Cascading Style Sheets for appearance
www.w3.org/Style/CSS
© Netskills Quality Internet Training, University of Newcastle
Improving Accessibility (2)
Tables & frames pose problems for some
browsers
 Tables
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Frames
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Keep tables simple
Test in text browser to
ensure it makes sense
when "linearised"
Use attributes to describe
table elements
If used, provide a "noframes" alternative
If possible, avoid!!
© Netskills Quality Internet Training, University of Newcastle
Improving Accessibility (3)
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Provide text equivalent for every non-text
element
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Images (especially if used for navigation),
animations, frames, audio, etc.
ALT attribute for images
<IMG SRC="button2.gif" ALT="link to home page">
Use contrasting colours for text
 Make design flexible
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Users can alter colours, font size, etc.
Validation for accessibility
bobby.watchfire.com
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Summary
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Well designed web sites are:
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Effective
Fast
Accessible
Design for accessibility
usually leads to good
design for all
© Netskills Quality Internet Training, University of Newcastle
References
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W3C Web Accessibility Initiative
www.w3.org/WAI/
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UK Government Guidelines
www.e-envoy.gov.uk/oee/oee.nsf/sections/
webguidelines-top/$file/webguidelines.htm
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Overview of legislation for HE/FE
www.jisc.ac.uk/pub01/n9_01.pdf
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Web site evaluation criteria used by a
information gateway:
www.sosig.ac.uk/desire/ecrit.html
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