The document titled 'Excellence in Usability' focuses on the principles of usability design in interactive systems, emphasizing emotional design and its impact on user experience. It discusses various aspects including aesthetics, usability, and the evolution of design, with references to historical products and designers. The content aims to illustrate the connection between emotional states and design decisions, drawing on theories such as Maslow's hierarchy of needs and Norman's levels of design.

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INTERACTIVE SYSTEMS USABILITY DESIGN
Roberto DADDA e Paolo NEGRI

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Emotional design
Design for emotions

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Emotional design
Manipulation of the
emotional state of a known
user to invoke a positive
response

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Presentation influences perception

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Usable and usefull…
1998 mpman F10 Korean
1955 - 1960

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…and agreeable!
October 2001
1964
Marco
Zanuso
and
Richard
Sapper
TV
Algol
11
Brion
Vega

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MP3 Players evolution
May 1998 September 1998
first commercially
successful one
October 2001

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Minimalist design: focus on needs
Naoto
Fukasawa
Braun
2012

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Alessi ASP09 Te O Tea Strainer by Stefano Pirovano

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Emotional

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Aesthetics and usability
http://ceur-ws.org/Vol-976/tpaper2.pdf
https://dl.acm.org/doi/abs/10.1145/223355.223680?download=true

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Maslow's Hierarchy of Needs
Abraham Harold Maslow (April 1, 1908 – June 8, 1970)

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Is related with the way our brain works
In brain we have three diffent brains!

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Norman: 3 levels of design

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Taken
from
a
Fitma
Hndy
presentation
on
Slideshare

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human disposition drivers profession example
reflective intellectually
driven
brand/image Perrier table
water
behavioral expectation
driven
usability water in
plastic bottle
visceral perceptually
driven
graphic
design
a beautiful
blue bottle
that is used as
a vase

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Emotional and
cognitive are
connected, always

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Without emotions you always make the
wrong decision!

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Lateral thinking

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Beautiful, but…

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Self esteem

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HeatKit 1926

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Betty Crocker Company. 1921

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The secret of success, self esteem…

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Visceral

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TyNant
•Costs more than gasoline...
•Design becomes the product
•Wow effect
•Candies for eyes

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I want it!!!

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Time by design, Gerrald Genta

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Colored Apples, sales booster! (1999)

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Very stable
•Changes, but needs time
•Opposite of reflexive
reaction that may
change very rapidly

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La maja desnuda Francisco Goya 1746 - 1828

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Rodolfo Valentino 1895 - 1926
Douglas Fairbanks 1883 - 1939

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TINKO
LOSSE
Deep…

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18K gold automatic
perpetual calendar
wristwatch with
moon phases and
leap year
indication
Gerald Genta
1931 - 2011

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Behavioural

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4 elements:
Function
Easy to undestand
Easy to use
Good fisical sensation

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Affordance

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Jinhong Lin
Mug for my lips

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Sony Walkman TPS-L2 The
original Walkman portable
cassette player - 1979
Akio Morita 1921 - 1999
Cofounder of Sony corp

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1932
The world first
commercial
available
diver’s watch:
OMEGA Marine

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Reflective

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Reflective
•Sensible to culture...
•May dominate the
others
Le Penseur Auguste Rodin 1840 - 1917

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My 2 cents of design wisdom

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Design:
A dynamic equilibrium, strongly
depending on actors and situation
where the final result may be VERY
different from the sum of different
elements.

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INTERACTIVE SYSTEMS USABILITY DESIGN
Roberto DADDA
roberto@dadda.it
www.dadda.it
Skype, Facebook e Twitter robertodadda