Pairwise comparison regarding maintenance and life cycle
| Sustainability | Cleaning | Element replacement | Operation maintenance | Eigenvector | |
|---|---|---|---|---|---|
| Sustainability | 1 | 4 | 9 | 3 | 0.536 |
| Cleaning | 1/4 | 1 | 7 | 1/3 | 0.144 |
| Element replacement | 1/9 | 1/7 | 1 | 1/9 | 0.034 |
| Operation maintenance | 1/3 | 3 | 9 | 1 | 0.284 |
| Sustainability | Cleaning | Element replacement | Operation maintenance | Eigenvector | |
|---|---|---|---|---|---|
| Sustainability | 1 | 4 | 9 | 3 | 0.536 |
| Cleaning | 1/4 | 1 | 7 | 1/3 | 0.144 |
| Element replacement | 1/9 | 1/7 | 1 | 1/9 | 0.034 |
| Operation maintenance | 1/3 | 3 | 9 | 1 | 0.284 |
Note(s): Consistency ratio (CR) = 0.09258
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