week designing for readability 2012

7/31/2019 Week Designing for Readability 2012

1/21

Week

Designing for usability

Week 10 Designing for Usability 1


2/21

Week

what is usability?

is it useful?

is it useable?
http://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJc


3/21

Week

Information Designer

what is usability?

Its about the relationship between tools and their users

the extent to which a product can be used by specified users to

achieve specified goals with effectiveness, efficiency and satisfaction in aspecified context of use.

ISO 9241-11

the measure of the quality of a user

s experience when interacting witha product or system, at the user interface

http://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJc


4/21

Week

user-centred design or universal design?


Two philosophies:

User-centred Design is the process of designing tools and products

from the perspective of how it will be understood and used by a user

Universal Design is the process of designing tools or products whichare usable by people with the widest possible range of abilities,operating within the widest possible range of situations l

then theres universal usability
http://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://youtu.be/noe3kR8KqJchttp://localhost/ttp/::www.ncsu.edu:project:design-projects:udi:http://www.ncsu.edu/project/design-projects/udi/2011/05/09/newprinciplesposters/%23more-653http://www.ncsu.edu/project/design-projects/udi/2011/05/09/newprinciplesposters/%23more-653http://localhost/ttp/::www.ncsu.edu:project:design-projects:udi:http://dl.dropbox.com/u/26642812/UniversalDesignMap.pdf


5/21

WeekWeek 10 Designing for Usability 5

aesthetics vs. functionality debate


6/21

Week

aesthetics vs. functionality

6Week 10 Designing for Usability

Balancing two interrelated but sometimes conflicting elements

aestheticspresentationexperience

"Aesthetic designs are perceived as easier to use than less-aesthetic designsLidwell 2003

functionality

usabilityinformational

it makes little sense wasting time on its packaging

Nielsen 1993
http://www.atlimusic.com/http://www.useit.com/http://www.useit.com/http://www.atlimusic.com/


7/21

Week

integrated approach

Broad or wholistic approaches that incorporate usability

Petterssons universal design: aesthetic, economic, & ergonomic

legible

readable

meaningful

unity

Shedroffssensorial design

Lidwells hierarchy of needs

low-level needs before higher level needs



8/21

Week

Lidwells hierarchy of needs

functionality

reliability

usability

proficiency

creativity



9/21

Week

definitions of usability

General

ISO924-11 standard

efficiency, effectiveness, satisfaction

Specific, web-usability

Nielsen, Shneiderman efficiency, learnability, memorability, error reduction, satisfaction



10/21

Week

a layered model


Van Welies layered model of usability


11/21

Week

efficiency


simplicitymake as simple and intuitive to use as possible

ease of use (usability literally) speed,

flexibility no tech support or user guides

learnability familiarity

consistency of design

visibility predictability
http://www.ianschragercompany.com/http://www.amnesty.org/http://www.amnesty.org/http://www.ianschragercompany.com/


12/21

Week

effectiveness

memorability

if you stop using a product or system for a long period of time, can youremember how to use it once you go back to it?

error reduction

how often do users make errors while using the system or product,

how serious are these errors

how do users recover from these errors?

accuracy

reliability



13/21

Week

effectiveness and efficiency



14/21

Week

satisfaction

14

is it useful?

is it productive?

does it fulfill its purpose?

do you enjoy using the product/system?

Week 10 Designing for Usability


15/21

Week

some examples

information design

don't confuse a site's organization, its information design, with the

representation of its organization or its visual design. How a site looks

is important, but the representation is ultimately not as important asits organization (Shedroff 1994)

experience design

interaction design

Design Museum

http://www.nathan.com/thoughts/recipe/info.htmlhttp://www.nathan.com/thoughts/recipe/info.htmlhttp://pbskids.org/sesame/http://www.visualthesaurus.com/http://designmuseum.org/http://designmuseum.org/http://www.visualthesaurus.com/http://pbskids.org/sesame/http://www.nathan.com/thoughts/recipe/info.htmlhttp://www.nathan.com/thoughts/recipe/info.html


16/21

Week

user-friendly

is the product/system potentially inappropriate?

London 2012 Olympics logo designed Wolff Olins

unveiled 4 June 2007

cost 400,000


Theres an old saying in the ad game: try not to give people seizures

Daily Show: London Logo Thursday June 7, 2007
http://www.wolffolins.com/work/london-2012http://www.youtube.com/watch?v=vs0hfhSje9Mhttp://www.wolffolins.com/work/london-2012http://www.wolffolins.com/work/london-2012http://www.wolffolins.com/work/london-2012


17/21

Week

accessibility

accessibility is concerned primarily with making the contentand functionality of web sites accessiblewithin reachtoall users

universal usability goes onestep further, striving to makethe content and functionalityaccessible and usable by all

http://www.humanrights.gov.au/site/accessibility/index.html


18/21

Week

universal usability


Designing information & communication products andservices usable by allregardless of identity and ability

different identities (age, culture, demographics, sexuality, gender etc)

visually, physically, hearing and cognitive impaired relationship to accessibility

three challenges:

technology variety

user diversity gaps in user knowledge
http://www.dyslexic.com/articlecontent.asp?CAT=Accessibility&slug=67&title=Typefaces%20for%20Dyslexiahttp://www.dyslexic.com/articlecontent.asp?CAT=Accessibility&slug=67&title=Typefaces%20for%20Dyslexia


19/21

Week

usability evaluation methods

universal design

... is a design strategy that helps to reach the goal of ... Universal Access

heuristics evaluation orrule of thumb Nielsons 10 heuristics, Shneidermans 8 golden rules

used mostly by web developer/designers

cost effective method

biased by the preconceptions of the evaluators

Heuristics are useful but nothing is as informative as an actual empirical study with real users

user testing / inquiry methods interviews, focus groups

surveys

task analysis

.



20/21

Week

common barriers to designing for usability

poor project management

cost

time

not consulting with users

users decide when a product is easy to use

not understanding users

people use products to be productive

not an iterative process

Need drafts and road testing



21/21

Week

further reading

Australian Human Rights Commission, accessed 2 May 2011 athttp://www.hreoc.gov.au/site/accessibility/index.html

10 Usability Heuristics accessed 3 May 2012 athttp://www.youtube.com/watch?v=hWc0Fd2AS3s&feature=related

Centre for Universal Design, available at http://www.ncsu.edu/project/design-projects/udi/

Jacob Nielsens Useit.com, accessed 3 May 2012 at http://www.useit.com/

Lidwell W., Holden K. & Butler J. 2003, Universal Principles of Design, Gloucester, Ma. :Rockport, 2003.

OConnor, P. 2005, Conflicting Viewpoints on Web Design,Journal of Travel & TourismMarketing, available at UTS lIbrary Catalogue eReadings

Usability First, accessed 3 May 2012 at http://www.usabilityfirst.com/

Van Welie, M.1999, Breaking down usability, available atwww.welie.com/papers/Interact99.pdf

http://www.hreoc.gov.au/site/accessibility/index.htmlhttp://www.youtube.com/watch?v=hWc0Fd2AS3s&feature=relatedhttp://www.ncsu.edu/project/design-projects/udi/http://www.useit.com/http://www.usabilityfirst.com/http://www.welie.com/papers/Interact99.pdfhttp://www.welie.com/papers/Interact99.pdfhttp://www.usabilityfirst.com/http://www.useit.com/http://www.ncsu.edu/project/design-projects/udi/http://www.ncsu.edu/project/design-projects/udi/http://www.ncsu.edu/project/design-projects/udi/http://www.youtube.com/watch?v=hWc0Fd2AS3s&feature=relatedhttp://www.hreoc.gov.au/site/accessibility/index.html

week designing for readability 2012

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