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| Criteria | Index | Definition | Index type |
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| Basic situation of components (A1) | Used years (a11) | The degree that the used years of the component is suitable for these restoration methods | Benefit |
| Material properties (a12) | The degree that the material properties of the component is suitable for these restoration methods | Benefit |
| Structural rationality (a13) | The degree of rationality that the structure of the component is suitable for these restoration methods | Benefit |
| Cause of damage (a14) | The cause of damage of the component is suitable for these restoration methods | Benefit |
| Severity of damage (a15) | The degree of severity that the damage of the component is suitable for these restoration methods | Benefit |
| Impact on neighboring components (a16) | The degree of impact on neighboring components using these restoration methods | Cost |
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| Restoration process (A2) | Restoration expense (a21) | The cost spent for the restoration | Cost |
| Material acquisition (a22) | The degree of difficulty in obtaining materials for the restoration | Cost |
| Process complexity (a23) | The degree of process complexity in the restoration | Cost |
| Requirements for equipment (a24) | The level of requirements for equipment in the restoration | Cost |
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| Restoration outcomes (A3) | Probability of authenticity restoration (a31) | The probability of fixing the components without changing the original materials and processing methods of the component | Benefit |
| Degree of preservation of historical information (a32) | The probability that historical information shall not be destroyed during restoration | Benefit |
| Probability of irreversible effects on the original component (a33) | The probability that the original component could not be returned to the prerepair state after restoration if an error occurred during the repair process | Cost |
| Possibility of reversible effects on the original component (a34) | The possibility that the original component could be returned to the prerepair state after restoration if an error occurred during the repair process | Benefit |
| Service life after restoration (a35) | The length of time that the component may be used after restoration | Benefit |
| Difficulty of maintenance (a36) | The difficulty in maintenance of the component after restoration | Cost |
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| Situation of commissioned restoration company (A4) | Teamwork capacity (a41) | The cooperation efficiency of the restoration team | Benefit |
| Proficiency (a42) | Restoration team professionals’ degree of skills | Benefit |
| Advanced restoration equipment (a43) | The performance of the restoration equipment | Benefit |
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