MULTICRITERIA EVALUATION OF AUTOMATED FILLING SYSTEMS - A CASE-STUDY

Much has been written about the use of multiattribute decision models to evaluate manufacturing technologies. This article describes an application to a real problem using a recently developed multiattribute decision tool. The case study involves an evaluation of three candidate technologies for filling packaged food containers. A manual baseline filling method is compared with the two technology investment options of automated weigh filling and automated volumetric filling. In food industries, the cost of material overfill is important but is not the only factor that should be considered. A multiattribute decision model is formulated that considers difficult-to-quantify criteria, such as material conversion, information conversion, and strategic activities. For the given decision scenario, when only directly measurable annual cost savings are considered, the weigh filler option is preferred; however, when the additional criteria are considered, volumetric filling is preferred primarily due to its product and equipment flexibility. It is proposed that the methodology described here will enhance the acceptability of applying multiattribute decision making to manufacturing investment problems.