Lean product development research: Current state and future directions

Lean Product Development (LPD) is one of the leading approaches currently being adopted by organizations attempting to maximize value, increase quality, shorten lead times, and lower costs for product development (PD) processes; however, it appears that the mere translation of lean manufacturing principles into PD settings does not necessarily equate to an effective lean PD process, and many organizations continue to struggle to deploy LPD. In order to better understand the theoretical content of LPD research, as well as the potential reasons for implementation difficulties, this article presents results from a systematic review of the LPD literature over the past 21 years. Findings are used to identify trends and themes in the current research, areas for future research, and implications for practicing engineering managers. In particular, we find that current themes in LPD research can be mapped to seven knowledge domains, and we identify practices and principles that have been proposed for dealing with core problems, as well as future research needs, within each of these domains.