What are the 5 stages in the visualisation pipeline?
- Raw data
- Data representation
- Visual representation
- Visual presentation
- View
What is the raw data stage of the visualisation pipeline?
Unstructured info.
E.g. text, numbers, binary etc.
What is the data representation stage of the visualisation pipeline?
Structure format.
E.g. tables, spreadsheets, etc.
What is the visual representation stage of the visualisation pipeline?
Charts, graphs and shapes.
What is the visual presentation stage of the visualisation pipeline?
Displayed on screen.
E.g. Monitor, dashboard, etc.
What is the view stage of the visualisation pipeline?
Final output the user sees.
What transformation happens between raw data and data representation?
Data transformation.
What transformation happens between data representation and visual representation?
Visual Mapping.
What transformation happens between visual representation and visual presentation?
Presentation transformation.
What transformation happens between visual presentation and view?
View transformation.
What is categorical data?
Data grouped into labels or categories (no numbers, no order).
Examples:
- Colours (red, blue, green)
- Types of fruit (apple, banana, pear)
- Yes/No answers
What is ordinal data?
Data in ordered categories. The order matters, but the gaps between values are not equal.
Examples:
- Rankings (1st, 2nd, 3rd)
- Likert scale (agree → disagree)
- Education levels (primary, secondary, university)
What is quantitative data?
Data measured with numbers. Values are numeric, and differences are meaningful.
Examples:
- Age (years)
- Height (cm)
- Temperature (°C)
What is sequential ordering?
Values follow a single range from minimum to maximum.
Examples:
- Age (young → old)
- Mountain height (sea level → peak)
What is diverging ordering?
Values split into two sequences pointing in opposite directions, meeting at a central point.
Examples:
- Temperature (below zero → above zero)
- Political spectrum (left ↔ right, centre point)
