# Computer Architecture for Industrial Training Evaluation
## 6 Discussion  
Considering the reference studies of information technology architectures, it is important to highlight their contributions, such as the work by [PERSON] and [PERSON] [39] where they used four layers: (1) Business Layer: focused on the needs and business processes of smart cities; (2) Information Layer: management and governance of the data needed for urban digitization; (3) Applications Layer: applications that support business processes and information management; and (4) Technology Layer: technological infrastructure that supports applications and data management. [PERSON] et al. [40] present their architecture with three layers: (1) Presentation Layer: user interface and augmented reality devices; (2) Applications Layer: training software and interactive guides for operators; and (3) Data Layer: storage and management of operator training and performance data. The study by [PERSON] et al. [41] describes a four-layer architecture: (1) Control Layer: Satellite control systems and ground operations; (2) Communication Layer: Communication infrastructure between satellites and ground stations; (3) Data Layer: Satellite data management and processing; (4) Security Layer: Security measures to protect data and communications. \begin{table}
\begin{tabular}{c l l l l} \hline \hline  & \multicolumn{2}{c}{**Null Hypothesis**} & \multicolumn{1}{c}{**Test**} & \multicolumn{1}{c}{**Sig.****a,b**} & \multicolumn{1}{c}{**Decision**} \\ \hline
1 & The medians of \%Efficiency are the same & Independent-Samples & 0.000 \({}^{\text{c}}\) & Reject the null hypothesis. \\  & across group categories. & Median Test & & & \\
2 & The distribution of \%Efficiency is the & Independent-Samples & 0.000 & Reject the null hypothesis. \\  & same across group categories. & Mann–Whitney U Test & & & \\
3 & The medians of Effectiveness are the & Independent-Samples &.d & Unable to compute. \\  & same across group categories. & Median Test & & & \\
4 & The distribution of Effectiveness is the & Independent-Samples & & & \\  & same across group categories. & Mann–Whitney U Test & 0.005 & Reject the null hypothesis. \\  & The medians of Satisfaction are the same & Independent-Samples & & & \\  & across group categories. & Median Test & & \\
6 & The distribution of Satisfaction is the & Independent-Samples & & & \\  & same across group categories. & Mann–Whitney U Test & & & \\ \hline \hline \end{tabular}  
* The significance level is 0.050. \({}^{\text{b}}\) Asymptotic significance is displayed. \({}^{\text{c}}\) Yates’ Continuity Corrected Asymptotic Sig. \({}^{\text{d}}\) All test field values are less than or equal to the median.  
\end{table} 
Table 14: Summary of hypothesis testing. Figure 39: Mean test for Satisfaction. [PERSON] et al. [42] present an architecture composed of (1) Sensor Layer: Wearable devices and sensors that collect motion data and physiological signals; (2) Data Layer: Data management and storage in the cloud; (3) Applications Layer: Augmented reality applications for training and monitoring; and (4) Communication Layer: Communication between wearable devices and data infrastructure. The FDIC--EA framework reference architecture [43] is composed of five layers: (1) Business Architecture that describes the activities and processes performed by the corporation to fulfill its mission and achieve its objectives; (2) Data Architecture that focuses on the management and organization of the data necessary to support the corporation in-formation needs; (3) Applications Architecture that defines the applications and systems that support business processes and data management; (4) Technical Infrastructure Architecture that includes the technological infrastructure that supports applications and data, such as hardware, software, and networks; and (5) Security Architecture that emphasizes the security aspects which must be integrated into all other architectures to protect the organization's information and systems.