The problem this work aims to solve is the improvement of the leanness level of a company jeopardized by the lack of lean engagement. The objectives of the research are to present a method based on a lean self-assessment approach, consisted of a qualitative self-assessment method based on lean elements that drives an index definition associated with a roadmap. The method consists in providing a roadmap for the assessed enterprise composed by the company’s lean index, recommendations and countermeasures deriving from Delphi and Kendall Coefficient of Concordance ( W) application among lean experts, leading the assessed enterprise to achieve results in terms of lean engagement, autonomy, and decision support criteria for future resource allocation. The results demonstrated that method can highlight gaps where additional improvements and investments would be necessary in the assessed enterprise. Finally, the study concludes that the lean performance identification associated to a lean roadmap in a company can be a highly effective tool to improve lean adoption in a leanness organization.

Today manufacturing sectors are more competitive than before. Thus, to execute an enterprise’s transformation in a company emerging as a lean organization it is crucial to have assessments and performance measurements that observe multiple variables during the lean implementation patch. The objective of this paper is to demonstrate a research method focused on lean performance measurement assessments from previous works, summarizing and organizing the existing evaluation standards in a way to allow different industrial segments to replicate the screening steps for a literature review construction. As a result, the existing lean performance measurements and methods from the last 23 years were refined in order to highlight opportunities and insights for future researches to be developed on the lean field.

A well defined manufacturing company focuses on lean practices along the whole product development process, not exclusively during the manufacturing and production phases. This study focuses on the application steps to be adopted for productivity improvement trough lean methods assessments in a product development company for the aeronautical industry. It also aims to provide insights for decision makers along the whole lean transformation patch, and to reduce the waste generation by eliminating the non–value–added activities resulted by a bad execution of the lean implementation tools and methods. By deploying the proposed study, the assessed enterprise increased its overall lean engagement level and production outputs.