CS 3724 Introduction to Human Computer Interaction Section

CS 3724 Introduction to Human Computer Interaction Section 2 CRN 11500 MW 2: 30 -3: 45 126 Mc. B

Today’s Agenda q Where is the interface? q e. XFR tape q Attention, Control, Display q What can we learn from graphic design and art? q q q Location Format Regularity Reinforcement Information content Emotional content q Midterm Guidance

Today’s Agenda q Where is the interface? q e. XFR tape q Attention, Control, Display q What can we learn from graphic design and art? q q q Location Format Regularity Reinforcement Information content Emotional content q Midterm Guidance

Where is the interface?

Where is the interface? q In a computer?

Where is the interface? q In a computer? q In a car?

Where is the interface? q In a computer? q In a car? q In a bowling alley?

Where is the interface? q q In a computer? In a car? In a bowling alley? In the Siesmo. Spin?

Where is the interface? q q q In a computer? In a car? In a bowling alley? In the Siesmo. Spin? In the Tilty Table?

Where is the interface? Control q What is used to control the system Attention q What the user is paying attention to. q Could be looking at, holding, hearing Display q What the system “shows” q Visual, auditory, touch, aroma Notice that user’s attention and system display are closely linked, but not necessarily the same.

Today’s Agenda q Where is the interface? q e. XFR tape q Attention, Control, Display q What can we learn from graphic design and art? q q q Location Format Regularity Reinforcement Information content Emotional content q Midterm Guidance

Information Design: What can we learn from Graphic Design?

Information Design • Very long tradition of graphic design • Before the book, even!

Location heuristic Put the beginning at the place where most people start to read.

Wall reading vs. book reading • Bibliographic: book-based literacy – Last 400 years in European culture • Epigraphic: wall-based literacy – Egypt, Rome – Where you read is important part of communication

Location heuristic Put the beginning at the place where most people start to read. • Bibliographic (e. g. windows): Left to right, top to bottom • Epigraphic (big displays): center

Regularity heurstic Establishing a discernable pattern makes for easier communication and navigation.

Regularity heurstic Establishing a discernable pattern makes for easier communication and navigation. Breaking the pattern is a powerful way to control attention.

Regularity heurstic Establishing a discernable pattern makes for easier communication and navigation. Breaking the pattern is a powerful way to control attention. (Or To Co. Nf. Us. E. )

Reinforcement heurstic Use shape and animation to reinforce important ideas. Use sparingly.

Format heursitics Start by using graphics conventions: • Fonts (Times or Helvetica) • Spacing (page grid and white space) • Color (a few, tried and true)

Graphic Design: A few resources • Principles of Graphic Design: http: //www. mundidesign. com/ presentation/index 2. html • Basic Graphic Design Theory for web design: http: //desktoppub. about. com /cs/designprinciples/ • “Classic Design Theory”: http: //desktoppub. about. com /cs/designprinciples

Where does meaning come from?

Information content • Difficult to completely separate from emotional content

Emotional content • Difficult to completely separate from informational content

This is the painting Vincent van Gogh made just before he killed himself.

On Meaning • Structuralism (semiotics) • “Affordances” (gestalt)

Sign = Sr + Sd (Structuralism) • Linguistics • Saussure

Structuralism • Admits values and history • Foundation for: – Post-Modernism – Critical Theory – Post-Structuralism

Gestalt / “Affordances” • Gestalt psychology – Kurt Lewin – The whole is more than the sum of the parts • Ecological psychology: a psychology of affordance – JJ Gibson – Door handle “wants” to be grasped

“Affordances” • Does not admit values or history • “Universals” • An implicit foundation of Alexander’s Pattern Language

Pour me Hold me Yank me “Affordance”

Structuralism Pour me Hold me Green plastic says outdoor power tool Yank me “Affordance” Blender 2 -stroke chainsaw engine says “Macho” Name says harddrinkin’ at sporting events

Find every thing Click this “Affordance” Type here

Find every thing “Official” Click this “Affordance” “We care” Type here Structuralism

A Comparative Study of Beauty Where does emotional meaning come from?

A Comparative Study of Beauty • In Math • In Engineering • In Art – Traditional European – Japanese – Contemporary

Mathematical Beauty • Elegance • Symmetry • Simplicity • Compactness

Engineering Beauty • Optimization • Efficiency • Systematicity • Repeatability (sometimes)

European (traditional) • Transcendent • Narrative (allegorical, etc. ) • Apprehended by the many (“Big WOW”) • Immediate

Japanese art • Subtle • Surface appearances • Apprehended by the few, with patience

Contemporary Art • Irony (the tension • Abstraction • Provocation • (NOT “Beauty”) of meanings)

Today’s Agenda q Where is the interface? q e. XFR tape q Attention, Control, Display q What can we learn from graphic design and art? q q q Location Format Regularity Reinforcement Information content Emotional content q Midterm topics

Mid Term Guidance q Read the Book! q Chapters 1 -6 q Scenario-Based Design q In class stuff q Heuristic: if we talked about more than once, it is likely to be on the test q Morphological box q Rittle, Vitruvius q Other stuff won’t hurt, too.

q Mid Term For Wednesday: q Dr. N returns q C# Next Week: Due Next Wednesday: q Team Report 2