0708 design rationale (introduction)

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Introduction workshop uxd minor

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Page 1: 0708 Design Rationale (Introduction)

Introduction workshop uxd minor

Page 2: 0708 Design Rationale (Introduction)

Workshop program

Introduction design rationale (Hans) Using sources from literature (Rolf) Today’s assignment (all)

Page 3: 0708 Design Rationale (Introduction)

A design what?

Design – concerning the act of designing

Rationale 1 : an explanation of controlling principles of

opinion, belief, practice, or phenomena 2 : an underlying reason

http://www.merriam-webster.com/dictionary

Page 4: 0708 Design Rationale (Introduction)

In simple terms…

Your account of the reasoning behind your design solutions The steps you went through The design decisions you made The basis for those decisions

Page 5: 0708 Design Rationale (Introduction)

Iterative exploration

From: Kenniskring HCI Hogeschool Rotterdam

Page 6: 0708 Design Rationale (Introduction)

Design never is a soletary effort

“Design is compromise.”

Bill Buxton in ‘Sketching User Experiences’

Page 7: 0708 Design Rationale (Introduction)

Sketching the experience

Sketches, visualizations or prototypes serve to suggest, propose and question design ideas. For you to explore To communicate to and share with others

Ideas need to be scrutinized, criticized and challenged to improve:

“criticizing your way to the solution” Scott Jenson (2002) in The Simplicity Shift

Page 8: 0708 Design Rationale (Introduction)

Documenting the design rationale

An explicit design rationale will: Stimulate a clear reasoning, shared and

understood by all (e.g., engineers, client) Prevent getting locked into your previous decisions

(e.g., with changing requirements)

Page 9: 0708 Design Rationale (Introduction)

A good design rationale

Is captured while the design process is progressing

Documents this design processContains visual representations of the design,

from the various phases of the design processContains the main design decisions throughout

the design process explicitlyContains the underpinnings of all design

decisions, preferably objectively and research based

Page 10: 0708 Design Rationale (Introduction)

Objective and research-based design decisions

“Knowing both what we want the site to accomplish for our organization and what we want the site to accomplish for our users helps inform all decisions we have to make about every aspect of the user experience.”

Jesse James Garrett (2002), The Elements of User Experience

Page 11: 0708 Design Rationale (Introduction)

Objective and research-based design decisions

Research can be research you conducted, or someone else has conducted

Objectivity is provided by documenting your own research (reproducibility) and/or traceable (trustworthy) sources