Abstract
Develops a model which operationalizes the different principles in lean production, with a focus on those that concern the work organization in the manufacturing part of a company. The model has been developed using available theory and has also been tried out in a clinical field study. The model has implications both for research and practice. For research, it can be used as a model for operationalizing lean production to be able to study change processes properly. In practice, the model can be used as a tool to assess the development taking place in an effort to become lean. Finally, it can be used as a checklist for what to aim at when trying to implement lean production. Lean should be seen as a direction, rather than as a state to be reached after a certain time and, therefore, the focus lies on the changes in the determinants, not on their actual values.