I213 user interface design development
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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

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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

    • 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?

  • 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

  • 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

  • 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 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?

achieve lifetime of success

become successful IT manager

learn to build useful systems

enroll in i213


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

  • 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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