# Remanufacturing Shoemaking Machine: Feasibility Study Using AHP and DEMATEL Approach
## 3 Methodology
### Analytic Hierarchy Process (AHP)
\begin{table}
\begin{tabular}{|p{56.9 pt}|p{56.9 pt}|p{56.9 pt}|p{56.9 pt}|} \hline
**Clusters** & **Nodes** & **Graphic** & **Normals** & **Limiting** \\ \hline \multirow{3}{*}{1. Goal} & Shoemaking machine machine & & \multirow{3}{*}{0.0000} & \multirow{3}{*}{0.000000} \\  & remanufacture & & & \\ \hline \multirow{6}{*}{2. Criteria} & 2.1 High corporate image & & \multirow{3}{*}{0.03535} & \multirow{3}{*}{0.014139} \\ \cline{2-2} \cline{5-5}  & 2.2 Good business model & & & \\ \cline{2-2} \cline{5-5}  & 2.3 Complete recycle system & & & \\ \cline{2-2} \cline{5-5}  & 2.4 Appropriate product design & & & \\ \hline \multirow{6}{*}{3. Sub-criteria} & 3.1 High market share & & \multirow{3}{*}{0.00589} & \multirow{3}{*}{0.001178} \\ \cline{2-2} \cline{5-5}  & 3.2 Trusted certification & & & \\ \cline{2-2} \cline{5-5}  & 3.3 Attractive price & & & \\ \cline{2-2} \cline{5-5}  & 3.4 High system share & & & \\ \cline{2-2} \cline{5-5}  & 3.5 High reverse logistics & & & \\ \cline{2-2} \cline{5-5}  & 3.6 Short downtime & & & \\ \cline{2-2} \cline{5-5}  & 3.7 Easy disassembly material & & & \\ \cline{2-2} \cline{5-5}  & 3.8 High modular components & & & \\ \hline \multirow{6}{*}{4. Alternatives} & 4.1 Surface production equipment & & & \\ \cline{2-2} \cline{5-5}  & 4.2 Self making equipment & & & \\ \cline{2-2} \cline{5-5}  & 4.2 Forming equipment & & & \\ \cline{2-2} \cline{5-5}  & 4.2 Setting equipment & & & \\ \hline \end{tabular}
\end{table} 
Table 7: The priority analysis of each cluster and node. Source: Researcher extract from Super Decision software (v3.2). the decision-making process facilitated by the ANP. While the ANP can be employed independently, it is most used as part of a multicriteria or integrated decision-making approach. This often involves combining the ANP with other methods, such as the AHP and the DEMATEL, to leverage the strengths of each technique. The flexibility of the ANP, particularly in facilitating stakeholder participation, makes it a valuable tool for evaluating complex, sustainable projects [61]. In Figure 3, the x axis represents the weight ratio of the variables selected for the criterion. The y axis represents the weight ratio of priority decisions. According to the AHP and ANP sensitivity analysis, sole-making equipment is also the most likely to be applied in remanufacturing, followed by surface production equipment and forming equipment. Figure 3: AHP and ANP sensitivity for alternatives. Source: Researcher extract from Super Decision software (v3.2). Red: 4.1 surface production equipment; green: 4.2 sole making equipment; blue: 4.3 forming equipment. (**a**) AHP sensitivity for alternatives; (**b**) ANP sensitivity for alternatives. The findings reveal that sole-making equipment presents the most favorable opportunity for remanufacturing within the shoemaking machinery sector, followed by surface production and forming equipment. Furthermore, the study highlights the paramount importance of appropriate product design for developing effective remanufacturing strategies. Easy disassembly and the use of high modular components emerged as crucial design considerations. A complete recycling system also plays a significant role, fostering a more sustainable approach.