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i213: User Interface Design & Development. Marti Hearst Thurs, Jan 25, 2007. Today. Finish Project Team Formation View Xerox Star video Start User Centered Design. User Interface TimeLine. Apple Macintosh ’84-’86

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I213 user interface design development

i213: User Interface Design & Development

Marti Hearst

Thurs, Jan 25, 2007


Today
Today

  • Finish Project Team Formation

  • View Xerox Star video

  • Start User Centered Design


User interface timeline
User Interface TimeLine

  • Apple Macintosh

    • ’84-’86

    • http://www.digibarn.com/collections/screenshots/Apple%20Macintosh%20v1-1%20-%201984/

  • Apple 2gs

    • ’86-’92

    • http://fp3.antelecom.net/gcifu/applemuseum/iigs.html

  • Mac II

    • Circa ’87-90

    • http://fp3.antelecom.net/gcifu/applemuseum/mac2.html

  • Windows 3.0

    • Released ’90

    • http://en.wikipedia.org/wiki/Image:Windows_3.11_workspace.png

  • Windows 95

    • Released ’95

    • http://en.wikipedia.org/wiki/Windows_95

  • Xerox Alto

    • Circa ’73

    • http://www.digibarn.com/collections/systems/xerox-alto/

  • Xerox Star

    • Circa ‘81

    • http://members.fortunecity.com/pcmuseum/alto.html

  • Unofficial Apple timeline:

    • http://fp3.antelecom.net/gcifu/applemuseum/index.html

  • Apple Lisa:

    • Lisa 1 and 2, circa ’83-’85

    • http://en.wikipedia.org/wiki/Apple_Lisa#Software

    • http://fp3.antelecom.net/gcifu/applemuseum/lisa2.html

    • http://www.digibarn.com/collections/screenshots/Apple%20Lisa/


Why user centered design
Why User-Centered Design?

  • System will fail if it:

    • does not do what the user needs

    • is not appropriate for the user

  • Why don’t we just define a “good interface”?

    • There is a huge variety of users and tasks

    • Guidelines are usually too vague

      e.g. “Provide feedback”, “Be intuitive”

Slide by James Landay


User centered design overview
User-Centered Design Overview

  • Needs assessment

    • Find out

      • who users are

      • what their goals are

      • what tasks they need to perform

    • Task Analysis

      • Characterize what steps users need to take

      • Create scenarios of actual use

      • Decide which users and tasks to support

  • Design based on this

  • Evaluation

    • Test interface by “walking through” tasks

    • Do this before implementation


Participatory design
Participatory Design

  • A subset of user-centered design

  • User actively participates in design of the system

  • Pros:

    • potentially more accurate information about the tasks

    • more opportunity for users to influence the design decisions

    • buy-in from sense of participation

    • potential greater acceptance of final system

Slide adapted from Ben Shneiderman


Participatory design1
Participatory Design

  • Cons (potential):

    • more costly

    • lengthier implementation period

    • antagonism from those whose suggestion are not incorporated

    • force designers to compromise design

    • exacerbate personality conflicts between designers and users

    • highlight organizational politics

Slide adapted from Ben Shneiderman


Example student course enrollment how to help students achieve their goals
Example: Student Course Enrollment:How to Help Students Achieve their Goals?

achieve lifetime of success

become successful IT manager

learn to build useful systems

enroll in i213


Help users achieve goals
Help Users Achieve Goals

  • Example: Course Enrollment Software

    • What matters from the programmers’ point of view?

    • What matters from users’ point of view?

    • What about the course administrators?


Next week
Next Week

  • Project Proposal Due

  • Readings:

    • Cooper (Inmates, Chs. 9-11)

    • Holtzblatt (in reader)

    • Newman & Landay

  • Topics:

    • Tuesday: Personas

    • Thursday: Resume user-centered design


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