NASSS-CAT TOOLS

Complexity Self-Assessment Tools for your project - designed to help you plan, undertake and evaluate a technology-supported change project in healthcare or social care. These tools have been developed to try to reduce the high proportion of technology projects that fail in these sectors. The Word version of the tools are downloadable directly via the link below. For the electronic version (e-NASSS-CAT), follow this link.

> Download

Trish Greenhalgh is a medical doctor and an internationally recognised academic in primary health care and digital health. She joined the Department in January 2015 after previously holding professorships at University College London and Queen Mary University of London.

She leads a programme of research at the interface between social sciences and medicine, with strong emphasis on the development, evaluation, spread and scale-up of digital innovations. Her research seeks to celebrate and retain the traditional and humanistic aspects of medicine while also embracing the exceptional opportunities of contemporary science and technology to improve health outcomes and relieve suffering. 

Trish is Programme Director for the MSc and DPhil in Translational Health Sciences. She was Director of the Interdisciplinary Research In Health Sciences (IRIHS) unit until February 2025 when she stepped down to focus on research and scholarship.

Her past research has covered the adoption and use of new technologies (including electronic patient records, assisted living technologies and remote forms of accessing and receiving healthcare) by both clinicians and patients; the evaluation and improvement of clinical services at the primary-secondary care interface, particularly the use of narrative methods to illuminate the illness experience in ‘hard to reach’ groups; the challenges of implementing evidence-based practice (including the study of knowledge translation and research impact); and the application of philosophy to clinical practice.  She has brought this interdisciplinary perspective to bear on the research response to the Covid-19 pandemic, looking at diverse themes including clinical assessment of the deteriorating patient by phone and video, the science and anthropology of face coverings, and policy decision-making in conditions of uncertainty.

Trish is the author of almost 500 peer-reviewed publications and 16 textbooks.  She was awarded the OBE for Services to Medicine by Her Majesty the Queen in 2001, made a Fellow of the UK Academy of Medical Sciences in 2014, elected an International Fellow of the US Academy of Medicine in 2021, and elected to the Faculty of Medical Leadership and Management in 2024. She is also a Fellow of the UK Royal College of Physicians, Royal College of General Practitioners, Faculty of Clinical Informatics and Faculty of Public Health.

Current research projects include):

• Interdisciplinary Systematic Review, a project with philosophers of science to improve the synthesis of evidence on complex interventions to take account of mechanisms of action.
• Remote by Default 2, a study of how GP practices are responding to the call to provide more remote services, funded by NIHR

Trish is a fellow at Green Templeton College. She currently has a full quota of doctoral students and will be taking retirement within the next three years, so is not taking on new DPhils. 

Trish is an active contributor to social media with 56,000 followers on Bluesky: @trishgreenhalgh.bsky.social