Validation of lean transformation sustainability assessment tool for manufacturing industry: Experts’ insights

Transformation from traditional mass and batch manufacturing into lean manufacturing has helped many organisations to become more successful in their business. However, there are facts and figures that show most manufacturing organisations have failed to sustain this success in the long run. One of the reason is, the lack of effective measurement criteria to assess their progress in lean transformation. The purpose of this article was to develop a valid assessment tool that measures manufacturing organisations’ lean transformation sustainability level. An assessment tool in the form of survey questionnaire was developed and tested for content validity using a panel of ten experts. An item content validity index was calculated for each indicator measuring lean transformation sustainability. Items with content validity indexes greater than 0.80 were retained and item with lower content validity index were discarded. The assessment tool has evidence of content validity and will need further test using statistical techniques to determine construct validity and reliability.