Petite histoire de l’ergonomie pour les geeks réfractaires

Pourquoi ?

You !

• The probability of selling to an existing customer is 60 –70%. The probability of selling to a new prospect is 5-20% – Marketing Metrics.

• A dissatisfied customer will tell between 9-15 people about their experience.

• It takes 12 positive experiences to make up for one unresolved negative experience – “Understanding Customers” by Ruby Newell-Legner.

Préhistoire Histoire Temps Moderne

1911 Frederick Taylor

1954Paul Fitts

1956 George Miller

1980Ericson and Simon

1980 1991

1984

1988Don Norman

Nielsen

Vizi Norman

Préhistoire

• La loi de proximité , le cerveau regroupant plus proches les unes des autres

• La loi de similitude, le cerveau regroupant les formes identiques

• La loi de symétrie, le cerveau regroupant les formes symétriques dans un même ensemble

• La loi de continuité, le cerveau considérant des formes rapprochées comme faisant partie d’un même ensemble

Loi de Gestalt

1884

1911 Frederick Taylor

smaller jobs can be understood and done easier than the original task

Fitts law1954Paul Fitts

OK Kill everyone

1956 George Miller The Magical Number Seven, Plus or Minus Two

Hick's law

1980Ericson and Simon

Think Aloud Method

Wizard of OZ

Histoire

Don Noman

Temps Moderne

Jakob Nielsen Rolf Molich publish the seminal paper "Heuristic Evaluation of

User Interfaces

"the king of usability" (Internet Magazine)

Robert Virzi's paper "Refining the test phase of usability

• Learnability

• Efficiency

• Memorability

• Errors (as in low error rate)

• Satisfaction

Fold

Thanks ..

www.natural-solutions.eu @orovellotti