The purpose of this study is to provide an ordering strategy for commodities that deteriorate over time using ramp-type demand rates, shortfalls, and deterioration rates. The ramp-type demand function moves up and down through duration up to a particular point before becoming constant. It is predictable. The three-parameter Weibull deterioration rate, which considers both things that have recently deteriorated while being received into an inventory system and items that may deteriorate in the future, shows the changes in deterioration rate over time. Owing to the inclusion of uncertainty, model factors such as deterioration, ordering, carrying, and shortage costs are examined by a fuzzy approach and defuzzy by the GMI method, which optimises the entire average cost for the model. This seems to be applicable for seasonal items as well as newly introduced high-tech items like computers, tablets, and smart phones.

Weibull deterioration, Graded mean integration (GMI), Fuzzification