Data hk is facts or statistics collected together for reference, analysis or decision-making. This may be as simple as recording sales figures, taking a electricity meter reading or collecting employee names and addresses; it can also include more complex information such as financial reports, market research findings or a range of business performance statistics. It is normally gathered to help with business decisions or to form government policy.

Often, datasets are enriched by adding information from external sources (such as official demographic or economic data or weather data) to make them more useful when sharing. This is known as ‘data curation’ and needs to be done on a regular basis, to ensure that the data remains accurate and relevant.

According to the Personal Data Protection (PDPO) Amendment Ordinance 2012, a data user that engages a data processor, whether within or outside Hong Kong, to carry out processing on its behalf must impose contractual or other measures to ensure that any personal data transferred to the processor does not contain any details that are likely to lead to the direct identification of an individual and is protected from unauthorised or accidental access, processing, erasure, loss or use.