Pillar or platform-a taxonomy for process improvement activities in public services

esearch into Lean in public services and particularly implementation, needs to develop from reporting cases to provide a taxonomy for researchers and practitioners. The paper outlines two approaches to process improvement activities (PIAs)—’Pillar’ and ‘Platform’ and tests the validity of these approaches through two organizational case studies (96 PIAs are considered). The degree to which this taxonomy supports decision-making is explored and issues associated with implementation are discussed.