## 3 Thematic Analysis of the Literature
### Specific Maturity Model
\begin{table}
\begin{tabular}{c l l l} \hline \hline
**Paper** & **Description** & **Methodologies** & **Instruments** \\ \hline
[48] & Development of Industry 4.0 & The methodology is based on Design & Exploratory research, \\  & maturity model for application in & Science Research (DSR) which consists & literature review, \\  & supply chain delivery processes. & of exploratory research for the & interviews with \\  & & development and application of & practitioners, survey, \\  & & artifacts that can be constructed, models & focus group, case study. \\  & & and methods. In the first step, the scope & focus group, case study. \\  & & of the research is defined based on & \\  & & stakeholder expectations. In the second & stage, the model is designed based on \\  & & the audience, application method, & \\  & & application direction, respondents and & \\  & & application. In the third phase, model & components are defined through a \\  & & literature review or interviews with & \\  & & stakeholders, surveys, focus groups and & \\  & & case studies. In the fourth phase, & \\  & & validity and reliability tests are & \\  & & performed using criteria such as & \\  & & comprehensibility, comprehensiveness, & \\  & & relevance, consistency, systematic & \\  & & structure, detachment, conceptual & \\  & & reliability and applicability, and finally, & \\  & & in the fifth phase, the application. & \\ \hline
[70] & Construction of a roadmap for & Compilation of an extensive and & Literature review. \\  & implementation of the Industry & accurate literature review. & \\  & & & accurate literature review. \\  & & & third phase, the model is designed and \\  & & submitted to a new panel of experts to & \\  & & define the compilation procedures. In & Interviews with experts, \\  & & the fourth and final phase, the model is & \\  & & applied, and with the results an & \\  & & implementation framework is & \\  & & developed and a new expert is created & \\  & & to conclude a generic model. & \\ \hline
[64] & Development of a maturity model & The basis of the model is obtained in a & Literature review and \\  & for evaluating Brazilian & literature review and the validity of the & survey. \\  & companies that adopt a circular & model is evaluated in the return of & \\  & economy business model. & results collected through a structured & \\  & & questionnaire. & \\ \hline
[50] & Definition of a maturity model for & The study collects data through & Interviews with \\  & Industry 4.0 with the objective of & semi-structured interviews, workshops & practitioners, interviews \\  & application in companies in the & and item scoring, incorporated into a & with experts, literature \\  & defense sector. & case study logic, in order to test and & review. \\  & & validate the model. Built from a & \\  & & literature review, the model was & \\  & & presented and validated by expert & \\  & & employees of an English company. & \\  & & Afterwards, specialists from 12 other & \\  & & companies collaborated in the supply of & \\  & & data for benchmark purposes. & \\ \hline
[56] & Construction of a maturity model & The model was conceived from a & Literature review, case \\  & to evaluate the adoption of & literature review and validation of the & study. \\  & intelligent services by German & model in case study. A total of 30 & \\  & companies. & companies participated in interviews & \\  & & and after the interactions a framework & \\  & & was designed which was refined from & \\  & & application in 3 companies. & \\ \hline \hline \end{tabular}
\end{table} 
Table 4: _Cont._The need to cover very specific requirements was identified in the articles that meet the objective of building maturity models, involving factors such as functional areas (e.g., logistics and supply chain), economic sectors (e.g., software industry, machinery builders, construction and mining), and countries (e.g., Italy, Portugal, Germany, Brazil, Mexico, Turkey and Iran). In some situations, these variables appear isolated, and in others they appear combined.