Vizualisation Part 2. Agenda 1.How the brain takes in information 2.Epistemology 3.Visualisation – Historic 4.Visualisation – Modern 5.Visualisation –

VizualisationPart 2

Agenda

1.How the brain takes in information 2.Epistemology3.Visualisation – Historic4.Visualisation – Modern5.Visualisation – Data6.Visualisation – Technical7.Visualisation – Mapping8.Excercises

6. Visualisations – Technical

UML Diagramming

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UML Diagramming

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UML Diagramming

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Automatic Layout of Networks and Diagrams - Hierarchical Layout

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Automatic Layout of Networks and Diagrams - Organic Layout

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Automatic Layout of Networks and Diagrams - Tree-like Layout

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Automatic Layout of Networks and Diagrams - Circular Layout

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Large Graphs – 350 nodes

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Large Graphs – 10,000 nodes

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7. Mapping

Visualisation & Mapping

• Visuals long been used in academia and teaching for their associative and visual qualities.

• Maps…o make things easy to findo chart paths to get placeso show us where things are and how to get from one

place to the nexto link things togethero reveal how things are connected

Mind Maps

• One of most well known and simple ways of connecting ideas together

• Tony Buzan - 1970's• Realisation the mind responds extremely well to

colors, images, key words and associations • Diagram of connected items - 'free association'

Mind Maps

Concept Maps

• More complex and powerful form of mind mappingo a collection of nodes, connected by lines that define

their relationship to one anothero sets out a network of things/ideas/items that are

related o a tree and branch like structure

• Pioneered by Joseph Novak

Concept Maps• Novak interested in understanding how humans learned

• Based on David Ausubel’s theorieso Ausbel’s work based on Jean Piaget's work on constructivism

most important single factor influencing learning is what the learner already knows

new knowledge consciously and deliberately added onto the old

• Graphically representing a person's knowledge of a concept, can better understand how it was accumulated

• Result = simple but powerful map of concepts, or “concept map”

Concept Maps (2)

Knowledge Mapping

• Human knowledge is built by linking things together

• Computer storage and retrieval is based on linking things together

• Maps link things together

• Operate on same principle: linking

Topic MapsTopic Maps combine all the preceding concepts: indexes, hyperlinking, visualization mapping, findability, etc.

Topic Map structure

Garshol, 2002

Hyperlinking

• Technology-assisted mappingo computer equivalent of “associationism"o "an associative index" - Dr. Vannevar Bush

(1945)o Project Xanadu - Ted Nelson "hypertext"

(1963) www.xanadu.neto hyperlinks overcome the constraints of time,

space, geography, retrieval, etc.

8. Excercises

Excercise #1 - DIT

• Create a Mind Map of DIT

Excercise #2 – Transportation

• Create a Mind Map of Dublin City transport problems, mapping possible solutions.