What is it?
A pie chart is a diagram which shows how a whole problem, measure or item is divided between its various components and the propotion represented by each component.
When to use it
- Gathering data
- Analysing data
- implementing and testing solutions
What does it achieve?
A pie chart is used to get a quick visual impact of the way the pie, or whole item, is sliced or divided between its components. It is a useful method of display, but for clarity it should not generally exceed five components.
Summary
Pie charts can be used to:
- Emphasis a particular segment
- Emphasis something missing
- Overlay two different items