Information Visualization Guidelines
Edward Tufte is world's leading authority on Information design and data visualization. New York Times called him; "The Leonardo da Vinci of Data"
According to his works, we can find four guidelines for Information Visualization.
1. Visual Excellence
- Complex ideas should be communicated with clarity, precision and efficiency.
- Viewer should be given greatest number of ideas in shortest time with the least ink in the smallest space.
2. Visual Integrity
- Data should be directly proportional to numerical quantities represented.
- Clear, Detailed labeling should be used to defeat graphical distortion.
- Reduce lie-factor
Lie-factor = Size of effect shown in visualization/Size of effect in Data
3. Data-Ink Ratio
- Maximise Data-Ink Ratio
Data-Ink Ratio = Data Ink/Total ink used
- The closer the ratio is to 1, the less distracting your representation is likely to be and thus more useful for viewer.
4. Visual Elegance
- Complex Data should be represented clearly in simple design. Instead of cutting down data to avoid clutter, more focus should be given on simplifying Design.