Models & Frameworks

Visualization

Models & Frameworks

Lecture Overview Visualization View vs Framework Navigation Internal Models Model Formation Model Interpretation Browsing Strategy

Visualization …

Framework …

Navigation Framework for Navigation

Content

Browsing Strategy

Interpretation

InternalModel

Browse

Formulate abrowsing strategy Internalization

Model

Navigation

Norman’s Action Cycle

6

Evaluation Interpretation Perception

Form Intention

From Action Plan

Execute Action

GOAL Change in World

Gulf of Evaluation

Gulf of Execution

Internal Models Cognitive Maps – mental map of external

Cognitive Collage - misinterpretations

Incompleteness – missing connections

Resistance to Change – internal vs external

Inertial Effects – transitions vs speed

Model Robustness - familiarity

Model Formation Externalization – view to build internal model

Perception & Cognition – see vs understand

Weighted Browsing – selective attention

Externalization for Browsing - how to show data

Influence as Content – register cause vs effect

Short-term Memory – storage vs processing

7 ± 2 – limit implication for tagging

Limiting Distraction Limit the number

of options on the screen at a time.

9http://www.wildsalmon.org/library/map2.cfm

Limit the amount of information visible.

http://edition.cnn.com/TECH/space/interactive.archive/Explore layers of the earth

Model Interpretation Interpretation of Externalized Data

views for large data setscontext versus detailsensitivity

Model Interpretation Model Adequacy

domain knowledgeexperience

y

x

A Good Model? y

x

The Actual Relationship

y

x

Browsing Strategy Browsing

What is there? What to look at in more depth?

Perceptual DeterminantFormulation of strategyBased on display

Cognitive Determinant Interpretation or new ideas Independent of display

Browsing Strategy – House Search

“Let’s offer more moneyand see what’s available.”

“Let’s dip randomly intothe brochure.”

“Let’s work our waythrough the houseswe tagged.”

“Wow! There’s a cheap5-bedroom house! Let’s have a look.”

Planned Strategy

Opportunistic Strategy

CognitiveDeterminant

PerceptualDeterminant

Browsing Strategy via Framework

IBM’s Auto Kioskhttp://www-106.ibm.com/developerworks/library/us-atex/

Beyond Recent Paradigms Mostly task specific/focused

most purely developed for visualizationexamples: OpenDX, IRIS Explorer, AVS, Viper*

Tradeoff between stability and flexibility Do not age well Are mostly extremely dependent on their

function and internal data structures Do not allow for new execution paradigms Large packages Hard to port and share

Enabling Solutions for New Needs More intuitive ways of understanding

large simulation assembly large simulation performance and debuggingdata sharingbetter convey information to [new] users

Needs more simplicity and more flexibilityportabledetached from the executing codeallow for new visual paradigmsshareable

Generalizing Visualization Environments More intuitive ways to

Link work “modules” togetherWays to process dataWays to set up simulationsWays to set up, monitor, and steer

complicated, large, long running, remote batch jobs

Focus on not ‘re-inventing the wheel’

Framework Summary

Goal:Isolate visual layer, to enable new

paradigms and better interactionOffer clear view of system’s stateAllow precise and efficient control

Review of Lecture Internal Models

Navigation Internal Models Model Formation Model Interpretation Browsing Strategy

Frameworks More simplicity and more flexibility Portable Detached from the executing code allow for new visual paradigms shareable

Lab Assignment Explore both visualizations. Compare how systems support user’s

mental models and browsing/learning. Submit brief analysis.

20http://www.wildsalmon.org/library/map2.cfm

http://edition.cnn.com/TECH/space/interactive.archive/Columbia & Snake Rivers

Interactive Map Explore layersof the earth

Lab Assignment - Cont. Explore the

visualization periodic chart...

What will be useful for your major project?

21

http://www.visual-literacy.org/periodic_table/periodic_table.html#

01/30/2007 01:05 AMA Periodic Table of Visualization Methods

Page 1 of 1http://www.visual-literacy.org/periodic_table/periodic_table.html#

Thanks toCindyVeitch