# Developing a Recommendation Model for the Smart Factory System
## 4 Result of SFS Development
### Result of Analyzing Alternatives Evaluation of SFS by Indicator Weight
#### 4.4.2 Weights Construction
\begin{table}
\begin{tabular}{c c c} \hline \hline \multirow{2}{*}{**Dimension**} & **Dimension** & **Indicator** \\  & **Weight** & **Weight** \\ \hline \multirow{6}{*}{\begin{tabular}{c} Perceived \\ Value \\ \end{tabular} } & \multirow{6}{*}{0.083} & SFS can bring greater benefits far more than costs. & 0.171 \\ \cline{3-3}  & & SFS can bring better performance in production. & 0.157 \\ \cline{3-3}  & & SFS’s benefit is expectable. & 0.150 \\ \cline{3-3}  & & SFS’s quality is professional and reliable. & 0.143 \\ \cline{3-3}  & & SFS’s input cost is reasonable. & 0.143 \\ \cline{3-3}  & & SFS’s benefit make all operators happier. & 0.129 \\ \cline{3-3}  & & SFS suppliers’ prestige is the reference for purchase. & 0.107 \\ \hline \multirow{6}{*}{\
\begin{tabular}{c} Perceived \\ Risk \\ \end{tabular} } & \multirow{6}{*}{0.111} & Enterprise managers worry that selecting inappropriate or wrong SFS will \\  & & decrease the trust of staff and their production efficiency. & 0.219 \\ \cline{3-3}  & & Enterprise managers worry about the uncertainty of the selected SFS that can \\  & & bring unexpected results. & 0.200 \\ \cline{3-3}  & & Enterprise managers worry that selecting inappropriate or wrong SFS will \\  & & make them spend more time adjusting and maintaining. & 0.181 \\ \cline{3-3}  & & Enterprise managers worry that selecting inappropriate or wrong SFS will \\  & & cause decision-making confidence burden in future business decisions. & 0.171 \\ \cline{3-3}  & & Enterprise managers worry about selecting inappropriate or wrong SFS that \\  & & will cause financial loss. & 0.124 \\ \cline{3-3}  & & Enterprise managers worry about selecting inappropriate or wrong SFS that \\  & & will cause staff harm due to operational accidents in the process of production. & 0.105 \\ \hline \multirow{6}{*}{
\begin{tabular}{c} UI Design \\ \end{tabular} } & \multirow{6}{*}{0.061} & SFS’s UI enables users to finish tasks more efficiently. & 0.293 \\ \cline{3-3}  & & SFS’s UI is easy to learn. & 0.227 \\ \cline{3-3}  & & SFS’s UI can reduce manual errors and easily recover from errors when \\ \cline{3-3}  & & they occur & 0.200 \\ \cline{3-3}  & & SFS’s UI enables users reduce memory burden. & 0.160 \\ \cline{3-3}  & & SFS’s UI can obtain user satisfaction. & 0.120 \\ \hline \hline \end{tabular}
\end{table} 
Table 7: Cont. SFS supplier should be trustworthy; if SFS suppliers cannot solve customers' problem, this might lead to more problems, financial losses, or low production efficiency. (4) \"SFS Function characteristics\"  
\"SFS can automatically predict the relevant production demand information (e.g., time consumption, ingredients, cost, and expected sales revenue) based on past sales data\" and \"SFS can automatically schedule\" are the top two most important items. As prediction and production schedule are cores of SFS, these are significantly different from the traditional factory. The prediction part uses big data analysis by analyzing past production and sales information, which can be used as references when proposing production strategies. The schedule part applies sensor technology and cloud management system, which can improve production productivity. (5) \"Information Security\"  
\"SFS ensures entered data is secure\", \"SFS can regularly back up data in different places\" and \"SFS ensures all information is accessed as it is allowed\" are the top three most important items. SFS transmit, store, and analyze information by the cloud; although this allows for high efficiency in information sharing, more security issues must be considered, including the CIA, information privacy, and cybersecurity. (6) \"Perceived Value\"  
\"SFS can bring greater benefits far more than costs\" and \"SFS can bring better performance in production\" are the top two most important items. SFS can automatically handle production procedures to improve efficiency and mitigate human forces, costs, and alleviate human errors.