This tool makes use of qualitative information. This information is in the form of important distinctions or difference that people see in the world around them. Important differences are those that make a difference. Differences that make a difference can be described as information (Bateson, 1979 in Davies, 1998).
A tree map is a nested classification. It can be represented as a diagram that grows from a single trunk and ends with many leaves. A simple example is given below.
Source: Davies (1998).
- The basic structure
- Generating a Tree Map
- Using Tree Maps
Rick Davies (1998). Tree Maps: A Tool for Structuring, Exploring and Summarising Qualitative Information Centre for Development Studies, Swansea UK. Retrieved from http://www.mande.co.uk/docs/treemap.htm
Also via www.mande.co.uk