Lecture 6 - Visualisation Methods 85ed5ff081e441f68baa73f42c695bb3.pdf

Lecture 6 - Visualisation Methods Outline Visualisation Methods Data visualisation Information visualisation Concept visualisation Metaphor visualisation Strategy visualisation Data Visualisation Getting an overview of the data Line chart Data points are ordered by their x-axis values, then connecte...

Lecture 6 - Visualisation Methods Outline Visualisation Methods Data visualisation Information visualisation Concept visualisation Metaphor visualisation Strategy visualisation Data Visualisation Getting an overview of the data Line chart Data points are ordered by their x-axis values, then connected by straight line segments Often used to visualise a trend in the data over a period of time Lecture 6 - Visualisation Methods 1 Area chart Like a line chart, except that the area below the line is coloured to indicate volume Often used to represent the cumulated totals over time Lecture 6 - Visualisation Methods 2 Bar chart Visual presentation of categorical data Vertical or horizontal bars with heights or lengths proportional to the value of each category Used to compare different categories Pie chart (circle chart) A circle divided into slices to illustrate numerical proportions The area of each slice is proportional to the quantity it represents Doughnut chart A variation of pie chart Blank centre may be used for additional information about the data as a whole Lecture 6 - Visualisation Methods 3 Information Visualisation Deal with large scale complicated datasets which may contain numerical data or non-numerical (verbal, graphical) data Aim to improve the viewers comprehension to reinforce their cognition and help them derive insights and make decisions Visual tools used in information visualisation Flow chart Semantic network Flow chart A diagram representing a workflow or process, a step-by-step approach to solve a task Used to design and document processes for easy visualisation Lecture 6 - Visualisation Methods 4 Semantic network A directed or undirected graph Vertices represent concepts Edges represent semantic relations between concepts Used to analyse large amount of text and identify the main themes and topics Lecture 6 - Visualisation Methods 5 Concept Visualisation Venn diagram A collection of overlapping circles (sets) Shows all possible logical relationships between different sets Lecture 6 - Visualisation Methods 6 Variations: Hexagonal Venn Diagram Comparison of multiple different elements Display both similarities and unique features of those elements Easy to understand the relationship among different elements Gantt chart Lecture 6 - Visualisation Methods 7 A bar chart to illustrate a project schedule and dependency among different tasks Tasks to be performed on the vertical axis Start and finish dates and the duration of each task on the horizontal axis Dependency: some tasks need to be finished before other tasks can begin Project planning and management Know what tasks need to be done and when to finish Dependency check Metaphor Visualisation Pictorial analogy Using a simple template to convey complex insights Lecture 6 - Visualisation Methods 8 Example: design of the tube map (when a map is not a map, but a diagram) Strategy Visualisation Strategy visualization is a method that visually represents an organization's strategy, goals, and plans. It simplifies communication of complex ideas. Various tools and techniques are used in strategy visualization, including diagrams, infographics, and flowcharts. It is particularly beneficial in planning and decision-making processes. It allows stakeholders to grasp the big picture and clearly comprehend the organization's direction. Lecture 6 - Visualisation Methods 9 Lecture 6 - Visualisation Methods 10