Social Development Index (SDI) is aimed at measuring social development in Hong Kong through establishing an objective and scientific sound system of indicators. While the Index is constructed based on a selected set of a few dozens indicators, the whole project is backed by a large databank of social statistics, consisting of about 400 social indicators grouped into different development domains or population groups. For the purpose of this Website, the domain framework of SDI databank has been slightly modified to arrive at the following 16 development domains:

Apart from the above development sub-domains, social indicators measure 7 population-specific sub-domains, and they include: