Vizualisation Part 2

Agenda 1.How the brain takes in information 2.Epistemology 3.Visualisation – Historic 4.Visualisation – Modern 5.Visualisation – Data 6.Visualisation – Technical 7.Visualisation – Mapping 8.Excercises

6. Visualisations – Technical

UML Diagramming

UML Diagramming

UML Diagramming

Automatic Layout of Networks and Diagrams - Hierarchical Layout

Automatic Layout of Networks and Diagrams - Organic Layout

Automatic Layout of Networks and Diagrams - Tree-like Layout

Automatic Layout of Networks and Diagrams - Circular Layout

Large Graphs – 350 nodes

Large Graphs – 10,000 nodes

7. Mapping

Visualisation & Mapping Visuals long been used in academia and teaching for their associative and visual qualities. Maps… o make things easy to find o chart paths to get places o show us where things are and how to get from one place to the next o link things together o reveal how things are connected

Mind Maps One of most well known and simple ways of connecting ideas together Tony Buzan '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 mapping o a collection of nodes, connected by lines that define their relationship to one another o 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 theories o 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 Maps Topic Maps combine all the preceding concepts: indexes, hyperlinking, visualization mapping, findability, etc.

Topic Map structure Garshol, 2002

Hyperlinking Technology-assisted mapping o computer equivalent of “associationism" o "an associative index" - Dr. Vannevar Bush (1945) o Project Xanadu - Ted Nelson "hypertext" (1963) o 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.