Tracking outcome indicators over time provides a measure of the progressive realization of a right (though outcomes alone do not give a full picture of state compliance with human rights obligations).
Development outcomes such as maternal mortality or primary school completion can be used to help assess levels of fulfillment of the human right to health or education.
Comparing disaggregated data over time can reveal disparities in the rates of progress among different groups of people.
Development indicators may be convenient but should be scrutinized as much as other types of data. Uncovering the methodology of data collection and processing may make some indicators problematic for human rights use. Where possible, affected communities should participate in the selection of indicators that meaningfully reflect their experience.