Book excerpt: These consolidated guidelines are aimed at supporting the generation of responsive person-centred data from routine national health management information systems across the HIV cascade, from prevention, testing and treatment to longer-term health care. They build upon the 2017 Consolidated guidelines on person-centred HIV patient monitoring and case surveillance, which describe information that should be collected in primary HIV patient monitoring tools, and the 2020 Consolidated HIV strategic information guidelines, which cover aggregate indicators for managing and monitoring programmes. The purpose of this guideline consolidation is to provide the recommended data elements, indicators and guidance on data systems and their use across the spectrum of health sector HIV services in one place. This document focuses on strengthening the analysis and use of routine data at each stage of the cascade and emphasizes?/addresses? person-centred HIV prevention, testing and treatment, integration of HIV-related infections, the use of routine surveillance data to measure impact, and the development and use of digital health data systems and their governance. It also identifies the gaps and limitations in these data, and the need for strengthening the use of data in all HIV-related strategic information, including population-based surveys, modelling, community-led monitoring and other sources.