A Discussion of the Synergy and Divergence between Lean Six Sigma and Person-Centred Improvement Sciences

Background: This paper discusses if and how the improvement sciences of Lean Six Sigma and person-centred approaches can be melded or blended in the health care context. The discussion highlights the relationship between each approach to improvement science in terms of their respective purposes, intentions and probable outcomes; positioning these as either synergies or divergences. Comparison of the key theoretical and methodological principles underpinning each approach to improvement is also considered and implications for future practice, policy and research are drawn out. The discussion is informed by part of the findings of a realist review of relevant literature.