Selection of best product end-of-life scenario using digraph and matrix methods

This paper presents a methodology for the selection of a best product end-of-life (EOL) scenario using digraph and matrix methods. An 'EOL scenario selection index' is proposed to evaluate and rank the alternative product EOL scenarios. The index is obtained from an 'EOL scenario selection attributes function' obtained from the 'EOL scenario selection attributes digraph'. The digraph is developed considering EOL scenario selection attributes and their relative importance for the considered product. An example is included to illustrate the approach.