## 4 Results and Discussion  
### Research Results  
#### 4.1.1 Establishment of Integrated Evaluation System  
As shown in Table 3, a total of 76 indicators were deleted and 47 were retained by applying a principal component analysis in a factor analysis in order to reduce the indicators. The four subscales include 16 indicators in the \"functionality\" dimension with an alpha coefficient of 0.912, 16 indicators in the \"ease of use\" dimension with an alpha coefficient of 0.923, 7 indicators in the \"system performance\" dimension with an alpha coefficient of 0.931, and 8 indicators in the \"safety\" dimension with an alpha coefficient of 0.929. The alpha coefficients of the four subscales are all above 0.80, and the alpha coefficient of the whole scale is as high as 0.952, which shows a high degree of reliability. The results of factor analysis are shown in Tables 4 and 5. Functionality has four subscales with sixteen indicators: subscale 1 contains a1211, a1210, a124, a127, and a126, totaling five indicators with an alpha value of 0.927, named \"image restoration function\"; subscale 2 contains a152, a156, a155, and a154, totaling four indicators with an alpha value of 866, named \"image editing function\"; subscale 3 contains a117, a116, a114, and a113, totaling four indicators with an alpha value of 915, named \"style conversion and migration function\"; and subscale 4 contains a1214, a1212, and a158, totaling three indicators with an alpha value of 0.802, named \"multi-layer image restoration\". Their eigenvalues are 7.709, 4.706, 3.147, and 2.163, respectively. The five subscales of ease of use have a total of sixteen indicators: subscale 1 contains a232, a237, a239, a242, a251, and a255, with six indicators and an alpha value of 0.926, named \"Visual Harmony\"; subscale 2 contains a242, a245, and a244, with three indicators and an alpha value of 0.931, named \"Service Quality\"; subscale 3 contains a224, a226, a222, with three indicators and an alpha value of 0.811, named \"Interaction\"; subscale 4 contains a234, a233, and a235, with three indicators and an alpha value of 0.854, named \"Media Suitability\"; subscale 5 contains a216, a215, and a217, with three indicators and an alpha value of 0.881, named \"Pattern Recognition\". The eigenvalues were 5.006, 4.248, 2.310, 1.915, and 1.538, respectively. The two subscales of system performance have seven indicators: subscale 1 contains four indicators, a326, a324, a333, and a321, with an alpha value of 0.922, which is named \"Service Stability\"; subscale 2 contains three indicators, a322, a332, and a323, with an alpha value of 0.947, which is named \"System Response Time\". The eigenvalues are 3.573 and 1.538, respectively. The two subscales of security have eight indicators: subscale 1 contains four indicators, a412, a413, a411, and a414, with an alpha value of 0.932, which is named \" Access Security\"; subscale 2 contains four indicators, a417, a418, a416, and a423, with an alpha value of 0.911, which is named \"Privacy Security\". Their eigenvalues are 3.186 and 2.623, respectively. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**No** & **Subscale of Factors** & **No. of Items** & **Cronbach’s \(\mathbf{\alpha}\)** & **Cronbach’s \(\mathbf{\alpha}\) of Subscale** \\ \hline
1 & Image repair function & 5 & 0.927 \\ \hline
2 & Image editing function & 4 & 0.866 \\
3 & Style conversion and transfer function & 4 & 0.915 \\ \hline
4 & Multi-layer image repair & 3 & 0.802 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Reliability analysis of the second questionnaire.