Transcript 2 Web Design Principles

Chapter 2
Web Site Design Principles
Principles of Web Design, 4th Edition
Objectives
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Design for the computer medium
Create a unified site design
Design for the user
Design for accessibility
Design for the screen
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Design for the Computer
Medium
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Design for the Computer
Medium
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Craft the look and feel
Make your design portable
Design for low bandwidth
Plan for clear presentation and easy access
to your information
(by providing links to related topics)
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Craft the Look and Feel
• The interface that the user must navigate is
called the look and feel of a Web site
• Users look and feel when they explore the
information design of your site(read text, use
links, graphics etc)
• Plan for a deliberate look and feel
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Make Your Design Portable
• Make your Web site design portable and
accessible across different browsers,
operating systems, and computer platforms
• Remember to test your work even when you
feel confident of your results
(fig on page 32)
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Design for Low Bandwidth
• Plan your pages so that they are accessible
at a variety of connection speeds
• If your pages download slowly because they
contain large, detailed graphics or
complicated animations, your users will leave
before they ever see your content (users wait
for 10-20 secs)
• Ex page 33(www.webmd.com)
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Plan for Easy Access to Your
Information
• Your information design is the single most
important factor in determining the success of
your site
• The goal is to organize your content and
present it as a meaningful, navigable set of
information
• Your navigation options should present a
variety of choices to users without detracting
from their quests for information
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Plan for Clear Presentation of
Your Information
• Design your information so it is easier to read
• Break text into reasonable segments that
make for easier on-screen reading
• Keep the “seven (plus or minus two)” rule of
information design in mind
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The interface that the user must navigate is often called the ____ of a
Web site.
• Answer: look and feel
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Your ____ design is the single most important factor in determining the
success of your site.
• Answer: information
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A navigation “____” shows users where they are in the site.
• Answer: breadcrumb
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(True or False) To be successful, your Web site design must be
portable and accessible by users who have different browsers,
operating systems, and computer platforms.
• Answer: True
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Create a Unified Site Design
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Create a Unified Site Design
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Plan the unifying themes and structures
Create smooth transitions
Use a grid to provide visual structure
Use active white space
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Plan Smooth Transitions
• Plan to create a unified look
• Reinforce the identifying elements
• Avoid random, jarring changes in format
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Use a Grid to Provide Visual
Structure
• The grid is a conceptual layout device that
organizes content into columns and rows
• A grid provides visual consistency
• HTML authors use the table elements to build
the grid for their pages
• CSS will eventually replace tables for layout
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Use Active White Space
• Use white space deliberately in your design
• Good use of white space guides the reader
and defines the areas of your page
• Active white space is an integral part of your
design that structures and separates content
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Design for the User
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Design for the User
• Keep your design efforts centered solely
around your user
• Design for interaction
• Design for location
• Guide the user’s eye
• Decide whether the user will read or scan
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Design for Interaction
• Think about how the user wants to interact
with your information
• Design for your content type
• Decide whether the user is likely to read or
scan your pages
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Design for Location
• Rank the information you want to display
• Assign location based on the relative areas of
screen importance
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Guide the User’s Eye
• Plan the design to guide the user’s eye
• Focus the user’s attention by object
placement, text weight, and color use
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Keep a Flat Hierarchy
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Provide plenty of linking options
Provide location information
Use plenty of textual links
Don’t overload the user with too much
content
• Design for accessibility
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Use the Power of Hypertext
Linking
• Add clickable text and images where
necessary to guide users through your
information
• Provide plenty of links to let the user get
around quickly
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How Much Content is Enough?
• Be conscious of the cognitive load of the user
• Separate content into smaller portions
• Use hypertext linking to divide content
between pages
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Quick Quiz 2
(True or False) You can impose a grid to provide visual consistency throughout your
site.
Answer: True
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White space that is used deliberately is called ____ and is an integral part of
your design that structures and separates content.
Answer: active white space
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A(n) ____ of contents instantly shows users where they have been and where
they have yet to go.
Answer: hypertext table
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(True or False) The overall design of a page at any information level should
reflect the identity of the site as a whole.
Answer: True
____ includes the blank areas that border the screen or are the result of
mismatched shapes.
Answer: Passive white space
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Design for Accessibility
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Design for Accessibility
• Develop Web pages that remain accessible
despite any physical, sensory, and cognitive
disabilities
• Developing accessible content naturally leads
to creating good design
• Follow W3 Accessibility Initiative guidelines at
www.w3.org/WAI/
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WCAG Guidelines
• Perceivable — Information and user interface
components must be perceivable by users
• Operable — User interface components must
be operable by users
• Understandable — Information about the user
interface and its operation must be
understandable by users
• Robust — Content must be robust enough to
be interpreted reliably by a wide variety of
user agents, including assistive technologies
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Design for the Screen
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Design for the Screen
• The computer display is very different from
print-based media
• The display is landscape-oriented
• Colors and contrasts are different
• Computer displays are low-resolution devices
• Reformat paper documents for online display
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Reformat Content for Online
Presentation
• It is a poor choice to take documents that are
formatted for print and post them online
• A document that is perfectly legible on paper
is hard to negotiate online
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Quick Quiz 3
• (True or False) Content must be robust enough to be interpreted
reliably by a wide variety of user agents, including assistive
technologies.
• Answer: True
• (True or False) Some users with seizure disorders can have a
seizure triggered by flashing visual content.
• Answer: True
• (True or False) Computer screens use a much higher resolution
than the printed page.
• Answer: False
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Summary
• Design specifically for the computer medium,
considering how the page layout, fonts, and colors
you use appear on the screen
• Craft an appropriate look and feel and stick with it
throughout your site
• Test and revise your interface by paying close
attention to the demands of online display
• Make your design portable
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Summary (continued)
• Plan for easy access to your information
• Design a unified look for your site
• Strive for smooth transitions from one page to
the next
• Create templates for your grid structure and
apply them consistently
• Use active white space as an integral part of
your design
• Use text, color, and object placement to guide
the user’s eye
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Summary (continued)
• Know your audience, and design pages that
suit their needs, interests, and viewing
preferences
• Leverage the power of hypertext linking
• Provide enough links for the users to create
their own path through your information
• Design your text for online display
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vocabulary
• Active White space; blank areas of page
used to guide the readers.
• Breadcrumb: shows users where they are in
the site.
• Grid: is a conceptual layout that organizes
page into columns and rows.
• Look and feel: The interface for the user to
navigate the site.
• Passive white space: Space left in page as
blank areas or mismatched shapes.
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