Web Usability

Post on 12-May-2015

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Explores web usability and offers approaches to make web sites easy to use for an end-user, without requiring the user to undergo any specialized training. Creating websites that intuitively relate the performance actions needed on the web page to the user’s experience and expectations, the web designer/developer is able to present the information to the user in a clear and concise way, to give the correct choices to the users, in a very obvious way, to remove ambiguity regarding the consequences of an action and put the most important thing in the right place on a web page or a web application.

Transcript

Web Usability: Creating Great

User Experiences!

Web Usability: Creating Great

User Experiences!

curriculum: Pat ReesPasadena City College Webmaster

facilitator: Joseph Karr O’Connor@csunwebmaster

Web Usability: Creating Great

User Experiences!

The only two industries that call customers users are the computer industry... and drug dealers.

Web Usability: Creating Great

User Experiences!

User Experience• find it

• action

• rinse and repeat• easily learnable

• efficient

• memorable

• satisfying

More important in 2.0!kayak CSUN Give

Invisible when it works!

Intro

5

Functional Design - Content Model• Support for tasks/goals

Information Architecture• Organizing data/info• Taxonomy

Communication Design• Motivates people to respond• Calls to action

Interaction Design• Designing tasks/activities• Interaction Design Association

Intro

6

Architecture- Taxonomy

NavigationUser interfaceInteractivityUser centeredFindabilityDo-abilityWayfinding

SEO marketingSearchWeb standards AccessibilityGraphic designBackend devCopywritingForms E-commerce

Creating Great User Experiences!

7

1. Doing The Research2. Content Is King3. How It Works

4. The Way It Looks

8

Creating Great User Experiences!

The Machine is Us/ing Us

9

Creating Great User Experiences!

Doing the Research

• Create client persona

Imagine users

• Invent user personas

• Variety

User states - examples

• New applicant

• Enrolled newbie

• Occasional user

• Frequent user

E01

10

1A

Engage client

• Survey and communication forms• Kelly Goto for sample forms

Site map - flow chart

• Visio, Illustrator, OmniGraffle

11

1B

E02

Wireframes

• Bare bones• Start with deep content - work backwards

• Lovelycharts

12

1C

Gather Technical Constraints Early

• Screen flows• Getting from point to point

• Gliffy

13

1D

Search Engine Optimization• No black hat tactics - or be banished to

the Phantom Zone

Keywords and phrases

• WordTracker

• Google mainpage auto complete

Findability

• Identify appropriate site

• Navigate the pages

15

1E

Open Standards

• Semantic markup

• Machine readable content

• Web Standards Project

• Jeffrey Zeldman: Designing With Web Standards (3rd Ed.)

16

1E

Open Standards

• Semantic markup

• Machine readable content

• Web Standards Project

• Jeffrey Zeldman: Designing With Web Standards (3rd Ed.)

16

1E

Hands On User Testing

• 5 people are sufficient

• user at computer/projector

• observers gathered aroundVideo User Testing Sessions

• Userfly

• Morae

• Silverback

22

1G

Content is King

• Word: Tools>Spelling and GrammarIn Mac Word 2008:

✓ Preferences: "Authoring and Proofing Tools"✓ Select "Spelling and Grammar" ✓ Check the "check grammar with spelling" box✓ Then check the "show readability statistics" box ✓ Go to the Tools menu and select "Spelling and Grammar"✓ Word will show the readability statistics after spellcheck

E04

24

2A

Content is King

• Keep paragraphs short

• Keep sentences short

• Use fragments - FAQ: don’t repeat question

• Use the users’ words

• Think globally - ESL

• Give examples

Inverted Pyramid

• Start with conclusion

• Word: Tools>Auto Summarize

25

2B

Design for Scanning

• Most users scan

• Then they use search

• Get rid of needless words - happy talk

• Use headings, bullets, lists

• Tables for TABULAR DATA (ONLY!)

• F pattern and “ad blindness”

Use Images and Icons

• Images convey, clarify message - USE ALT!

• Screenshots, videos

• Icons help user find content, utilities26

2C

Target All Devices

• Mobile views rising 18%/mo (csun.edu)

• JavaScript, PDF, Flash - may lack support

• Test - turn off JavaScript and images

• MAKE IT ACCESSIBLE to everyone!

• Create print style sheet with CSS

• W3C mobile web resource

• Mobile emulators

• iPhoney

• Opera Mini Simulator

• Opera browser>View>Small Screen

27

2D

Respect Me

• How would I react?

• Do good - i.e. opt-in

• Tell me a story

Rediscovery of Content

• Faceted navigation - jcrew

• Folksonomy (popular) tags - digg or delicious

• RSS feeds, mailing lists, newsletters

• Search box

• Feeds, share, follow, etc. : ASMBYC

28

2E

Navigation

• Findable

• Where am I?

• Where can I go?

• Where have I been?

• How do I get here again?

• Go to deep page - answer those questions

• E-trade

• NPR Shop

• 800x600: does right nav disappear? alistapart

• Drop downs: USPS and csun.edu

30

3B

Affordance

• Is clickable action obvious?

31

3C

Forms and Buttons

• Required vs Optional

• Crate and Barrel

• Error Messages

• Modal and non-modal

• Don’t lock me out with modal!

• No cryptic error messages, please.

35

3F

Forms and Buttons

• Don’t be too rigid

• Data checking on back end, please

• Anticipate international formats

• Dress for mess 6265857731 626 585-7731 626-585-7731 626.585.7731 (626) 585-7731 or international code 011 353 66 713 0000

36

3F

Forms and Buttons

• Eliminate chance of error

• Error-free learning

• Provide an undo

37

3F

Forms and Buttons

• Drop-down lists

• Automate with keystrokes

• States, countries, birth years, etc.

38

3F

Forms and Buttons

• Use AJAX auto complete

• Google Search

• Kayak - try airport codes

39

3F

Forms and Buttons

• Determine best use of form elements

• Ease of entry, keystrokes, recognition

• Fewer errors

40

3F

Forms and Buttons

• Instructive design = speed and accuracy

• Move cancel button away from “I’m done”

• Indicate required and optional (color)

• Provide hints

• Limit drop down choices

• More than 5 ‘choose one’?

• Use a select list

• Use radio buttons

41

3F

Forms and Buttons

• Use Spry, CSS, and JQuery to help

• Fancy form design with CSS

• Friendly, understandable, focused error info

• Organize info in logical fieldsets

• Error-free learning

• Completion button most likely choice

• Keep users away from whirling blades

42

3F

Less Friction>More Energy>Flow

• Multiple pathways engage = discover

• IMDb

• Gradual engagement

• Avoid sign-up forms - $300M Button

• Guest vs registered - give good reason

• Picnik

• Visualize (whirled peas)

• iGoogle

44

3G

Optimize for Speedy Download

• Use best practices for speed

• Downloading images, etc., takes time

• Concatenate/minify scripts, run them last

• Combine images with CSS sprites

• Fewer HTTP requests

• Tidy up CSS, put reference at top

• Reduce DNS Lookups

• Add far-future Expires headerExpires: Thu, 15 Apr 2010 20:00:00 GMT

45

3H

Optimize for Speedy Download

• Avoid redirects

• Add trailing slash to hyperlink

• Avoid 301 and 302 status codes

• NEVER USE meta redirects

• Breaks back button, security warnings

• Yahoo Best Practices

• Get YSlow for Firebug and use it

46

3H

Optimize for Speedy Download

• Check spelling

• Validate

• Accessibility, code, CSS - W3C

• Check for broken links

• Xenu’s Link Sleuth

• Google Webmaster Tools

48

3H

Agile Design and Development Practices

• Design system not surface

• Evolutionary, user driven, not final

• No page, only pathways

• Simplicity over complexity

• Collaborative and open design

• Test in major rendering engines + mobile

• WebKit (Safari, Chrome)

• Gecko (Firefox)

• Trident (IE)

• Presto (Opera)

49

3H

The Way It Looks

• Design affects usability

• Aesthetically pleasing objects appear to be more effective

• Professional design increases trust, especially for transactional site

• Design can create order and instill peace and serenity

• Important when asking user to fill out lengthy form

50

4A

Provide a Clear Visual Hierarchy

• Vital info with quick scan

• Visual prominence to important content

• Related content visually related

• Zoom out in Firefox (like squinting)

• Logos take space, not most important

• Visual nesting

51

4B

Contrast

• Craft a visual information hierarchy

• Compel viewers to view where you want them to

• With intelligent contrast and calls-to-action users will follow along

52

4C

Don’t forgetwhite space.

Don’t Forget White... oh, never mind!

• CSS for leading and kerning text

• CSS for padding and margins in layout

• Important stuff gets more white space

• Nested boxed content

• Pay attention to padding

• Pay attention to real estate needs

54

4D

Focus

• Westerners typically begin reading a page of information in the upper left hand area

• If you place highly conspicuous (according to contrast) in upper left it will most likely be seen and consumed first by Western users

• Simplification is not organization

• Complex <<-----|--->> Simple

• Chaotic <<---|----->> Order

• NRA

55

4E

Focus

• Horizontal and vertical grids help reduce noise and complexity

56

4F

Grids

• Fireworks Reticulator

• Dreamweaver - use grids and guides

• Grid: View>Grid>Grid Settings

• Guides: View>Rulers - drag out guides

• Examples of grid layout designs

• Smashingmagazine

• Webdesignerwall

• Newspapers

• USA Today, CNN, CalTech Today,

• Washington Post, MSNBC

58

4G

Make Something Stand Out - For Attention and Action

• Use purposeful intentional contrast

• Avoid small differences

• Don’t violate overall design

• Continue same convention elsewhere

59

4H

The End

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