## 4 Research Methodology
### Analysis and Results
PROMETHEE II results for \"Healthcare FM KPIs for Maintenance and Repair\" are given in Table 13. According to analysis results, \"Preventive maintenance ratio (M6)\", \"Schedule compliance (M13)\", and \"Manpower efficiency (M4)\" are the most important FM KPIs for maintenance and repair in healthcare facilities, respectively. PROMETHEE II results for \"Physical Aspect of Healthcare Facilities\" are given in Table 14. According to analysis results, \"Condition index (P5)\", \"System-equipment availability (including lift, and fire services system) (P1)\", and \"Identification of annualized failure rate for equipment (P3)\" are the most important FM KPIs for physical aspect of healthcare facilities, respectively. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Indicator** & **Phi Values** & **Indicator** & **Phi Values** \\ \hline M6 & 0.7817 & M5 & \(-\)0.1014 \\ M13 & 0.7541 & M16 & \(-\)0.1910 \\ M4 & 0.7448 & M22 & \(-\)0.2921 \\ M3 & 0.6605 & M14 & \(-\)0.3184 \\ M12 & 0.5740 & M18 & \(-\)0.3298 \\ M20 & 0.5046 & M10 & \(-\)0.3808 \\ M23 & 0.4616 & M15 & \(-\)0.4695 \\ M2 & 0.3882 & M24 & \(-\)0.4787 \\ M21 & 0.3333 & M1 & \(-\)0.5318 \\ M19 & 0.1146 & M17 & \(-\)0.5415 \\ M8 & 0.0272 & M11 & \(-\)0.8437 \\ M9 & 0.0272 & M7 & \(-\)0.8933 \\ \hline \hline \end{tabular}
\end{table} 
Table 13: PROMETHEE II results for maintenance and repair in healthcare facilities. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Indicator** & **Phi Values** & **Indicator** & **Phi Values** \\ \hline U2 & 0.8919 & U5 & \(-\)0.1218 \\ U1 & 0.7219 & U10 & \(-\)0.1622 \\ U14 & 0.6815 & U9 & \(-\)0.2169 \\ U3 & 0.2585 & U4 & \(-\)0.2347 \\ U7 & 0.2335 & U15 & \(-\)0.3060 \\ U16 & 0.1943 & U18 & \(-\)0.3119 \\ U11 & 0.1610 & U17 & \(-\)0.4652 \\ U8 & \(-\)0.0303 & U6 & \(-\)0.5389 \\ U13 & \(-\)0.1052 & U12 & \(-\)0.6494 \\ \hline \hline \end{tabular}
\end{table} 
Table 11: PROMETHEE II results for user aspect in healthcare facilities. PROMETHEE II results for \"Healthcare FM KPIs for Lifecycle Cost Management\" are given in Table 15. According to analysis results, \"O&M cost (including depreciation and amortization costs) per building area/per patient bed (L17)\", \"Resource/Energy expenditure per building area/per person (L25)\", and \"Maintenance cost per building area/per patient bed/by functional area (L5)\" are the most important BI&A areas in lifecycle cost management, respectively. In the GAIA plane, the same direction of criteria represents similar preferences. If directions of criteria vectors are opposite to each other, it means these criteria are conflicting criteria. The length of criteria vectors is used to measure the power of criteria on actions. Additionally, GAIA planes are obtained as a result of principal component analysis. In other words, n-dimensional space of criteria is converted into two-dimensional space. This conversion can cause loss of information, which is measured by delta value [59]. The loss of information cannot exceed 40% [180]. The convergence of action points to vector pi on the GAIA plane (red vector) shows the most important actions. The GAIA analysis results are given in Figure 3. Additionally, the GAIA analysis shows that when conversion from 3D to 2D is performed, the conversion process causes:  
* Approximately 8% data loss for environmental aspect FM KPIs,
* Approximately 21% data loss for user aspect FM KPIs,
* Approximately 9% data loss for emergency and safety management FM KPIs,
* Approximately 9% data loss for maintenance and repair FM KPIs,
* Approximately 2% data loss for physical aspect, and
* Approximately 17% data loss for lifecycle cost management.