This paper aims to elucidate practitioners' understanding and implementation of Lean in Product Development (LPD). We report on a workshop held in the UK during 2012. Managers and engineers from four organizations discussed their understanding of LPD and their ideas and practice regarding management and assessment of value and waste. The study resulted in a set of insights into current practice and lean thinking from the industry perspective. Building on this, the paper introduces a balanced value and waste model that can be used by practitioners as a checklist to identify issues that need to be considered when applying LPD. The main results indicate that organizations tend to focus on waste elimination rather than value enhancement in LPD. Moreover, the lean metrics that were discussed by the workshop participants do not link the strategic level with the operational one, and poorly reflect the value and waste generated in the process. Future directions for research are explored, and include the importance of a balanced approach considering both value and waste when applying LPD, and the need to link lean metrics with value and waste levels.@en

This paper explores the relationship between value and waste in the context of Lean Product Development (LPD). Although value and waste belong to prominent concepts being explored in the effort of developing LPD, however, understanding value and waste and their relationship in the complex and uncertain product development process (PDP) is a challenging task. This paper explores the relationship between value methods and waste types using a Domain Mapping Matrix (DMM). Moreover, in an effort to improve the Product Development Process (PDP) performance, we present a conceptual improvement guideline for improving PDP. This study uses literature review to develop the DMM of value and waste as well as the improvement guideline. The results of this research can be used in practice to identify waste types, and to select suitable value methods to eliminate corresponding critical waste types in their organization.@en