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  • ONS Survey Improvement and Enhancement Plan for Economic Statistics

    Released on: 26 June 2025 | Corporate Information

    This survey improvement and enhancement plan reflects the urgent need to address survey challenges and a wider strategic pivot within ONS to sustain surveys into the future. It outlines a clear and ambitious roadmap to restore confidence in ONS's survey operations, enhance data quality, and modernise systems and methodologies.

  • Index of Services QMI

    Released on: 17 June 2024 | Methodology

    Quality and methodology information for the Index of Services, detailing the strengths and limitations of the data, methods used, and data uses and users.

  • Public sector employment QMI

    Released on: 24 July 2018 | Methodology

    Quality and Methodology Information report detailing the methods behind the Public sector employment (PSE) release. PSE is the official measure of people employed in the UK public sector, including private sector estimates. Data are released on a quarterly basis in the form of a statistical bulletin.

  • Household projections for England QMI

    Released on: 28 October 2025 | Methodology

    Quality and Methodology Information report for household projections for England.

  • Input-Output Analytical Tables QMI

    Released on: 01 August 2025 | Methodology

    Quality and methodology information for the Input-Output Analytical Tables.

  • Compare age-sex estimates from Census 2021 to areas within England and Wales

    Released on: 28 June 2022 | Methodology

    Interactive tool to help local authorities compare age-sex estimates and comparator data from Census 2021 to other areas within England and Wales.

  • Coronavirus and compliance with government guidance, UK QMI

    Released on: 12 April 2021 | Methodology

    Quality and methodology information for Compliance with coronavirus (COVID-19) guidance, detailing the strengths and limitations of the data, methods used, and data uses and users.

  • Evaluation reports

    Released on: 13 January 2016 | Corporate Information

    Evaluation reports covering each stage of the 2001 Census programme.

  • Developing standard tools for data linkage: February 2021

    Released on: 03 February 2021 | Corporate Information

    Discussing the seven functions that were created to automate part of the data linkage pipeline to improve efficiency and quality.

  • Adult smoking habits in the UK methodology

    Released on: 04 November 2025 | Methodology

    Methodology information for the Adult smoking habits in the UK annual statistical bulletin