# Defining SMEs' 4.0 Readiness Indicators
## 6 The Synthesis of SMEs 4.0 Readiness Indicators  
This research defines essential indicators in Industry 4.0 readiness for SMEs by using the bibliometric method. Methodology is keywords-occurrence analysis and clustering. The database is 1541 publications form Web of Science and Scopus database. Then, the research found 34 aspects from analyses. After that, the finding of dimension, there are validation by using [PERSON]'s correlation and [PERSON]'s alpha. The dimensions have [PERSON]'s alpha equal to 0.926 and a significant positive [PERSON]'s correlation. The result from analysis shows all the aspects and dimensions that are important to assess SMEs' 4.0 readiness in preparing for Industry 4.0. The output shows the important 23 aspects were grouped into five dimensions. The example of indicators presents in Table 7, the SMEs readiness indicators defined from the dimension and aspects by systematic literature and Industry 4.0 approach. The SMEs can also identify the indicator to accord their activity and operation in the context of the 23 aspects and five dimensions. \begin{table}
\begin{tabular}{c c c} \hline \hline
**Dimensions** & **Cronbach’s Alpha** & **N of Items** \\ \hline
**Data Transformation** & 0.740 & 4 \\ Cloud Manufacturing & & \\ Data Acquisition & & \\ Data Connected & & \\ Real Time Data & & \\
**Digital Technology** & 0.840 & 5 \\ Big Data Analytics & & \\ Information System & & \\ Tracking System & & \\ Predictive Maintenance & & \\ Cybersecurity & & \\ \hline \hline \end{tabular}
\end{table} 
Table 6: _Cont._ \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Dimension** & **Aspects** & **Readiness Approach** & **Example Indicators** \\ \hline \multirow{8}{*}{Business Strategy} & Business Model & Digital business model and service which implications Industry 4.0 [59]. & \# Level of ability to achieving to digital platform \\  & & & \\ \cline{2-4}  & Business Model & A strategy, plan, and plan for long-term business & \% of achieving a strategy goal \\  & & competition [72; 73]. & \# Level of ability to implement Industry 4.0 strategy across the business \\ \cline{2-4}  & & & \\ Digital Transformation & Digital in designing to formulate creating marketing products [74]. & \# Level of ability to create digital product value \% of customer from digital marketing \\ \cline{2-4}  & & & \\ Leadership & An awareness of SME leadership [75]. & \# Level of ability to lead achieve a goal \% of Industry 4.0 expertise leadership \\ \cline{2-4}  & & & \\ Organizational Structure & The organizational structures open and flexible, environment and culture [76] & \# Level of adjustment for a change \% of worker achieve Industry 4.0 goal \\ \hline \multirow{2}{*}{Supply Chain Management} & Co-creation value of internal and external stakeholders [77]. & \# Level of cooperation with stakeholders \% of real-time integrated planning \\ \cline{2-4}  & & & \\ \end{tabular}
\end{table} 
Table 7: SMEs 4.0 readiness indicators. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Dimension** & **Aspects** & **Readiness Approach** & **Example Indicators** \\ \hline \multirow{6}{*}{**Dimension**} & Infrastructure & An equipment infrastructure is an important requirement [78]. & \% of capital in infrastructure assets \\ \cline{2-4}  & Financial Resource & Financial and investment capital & \% of capital R\&D \\  & and Investment & improve products or processes [79]. & \% of capital allocated in Industry 4.0 project \\ \cline{2-4}  & Standardization & Standardizations in operation, product and process [80]. & \% of standards for digital communication channels \\  & & product and process [80]. & \% of Standard equipment \\  & & product and production \\ \hline \multirow{6}{*}{**Dimension**} & Logistics System & The transport system in different operation area [81]. & \% of automated the material containers and carriers at workstations \\ \cline{2-4}  & Collaborative Robot & Industrial robots working alongside humans to share their workload [82].