Equality data can be collected by means of surveys, censuses, administrative processes (e.g., employment data), complaints data or research, among other sources. Within these sources, any piece of information or set of values, whether qualitative or quantitative, that is useful for describing and analysing the state of equality can be referred to as equality data. Moreover, personal information connected to certain characteristics such as race or ethnic origin are considered sensitive data, and therefore it is more severely protected requiring the data subject’s informed consent.