## 3 Results
### Service Delivery Model for Health Monitoring and Health Management Systems
An overview of the key sources of information for these services is shown in Table 6. \begin{table}
\begin{tabular}{c c c} \hline \hline
**Service** & \multicolumn{2}{c}{**Sources of Information**} \\ \hline \multirow{4}{*}{Predictive maintenance} & - & Flight data monitoring systems: capture performance data during flights. \\  & - & Maintenance records: historical maintenance actions and outcomes. \\  & - & Sensor data: real-time health data from aircraft components. \\  & - & Environmental data: conditions that might affect component wear and \\  & - & tear, like weather. \\ \hline \multirow{4}{*}{Condition-based monitoring} & - & IoT sensors: collect real-time data on various parameters such as temperature, pressure, and vibration. \\  & - & Aircraft health monitoring systems: system-specific health data. \\  & - & Operational data: usage patterns, flight hours, cycles, etc. \\ \hline \multirow{4}{*}{Fault diagnosis} & - & Diagnostic tools: software tools that analyze error codes and system alerts. \\  & - & Flight crew reports: manual observations and issues reported by the flight crew. \\  & - & Maintenance logs: detailed records of past inspections, issues, and fixes. \\ \hline \multirow{4}{*}{Optimization of maintenance schedules} & - & Historical maintenance data: trends and patterns from past maintenance activities. \\  & - & Operational schedules: planned flight operations and aircraft \\  & - & Utilization data. \\  & - & Component lifespan data: manufacturer data on expected component \\  & - & Ifeecycles. \\  & - & Regulatory requirements: mandatory maintenance intervals. \\ \hline \multirow{4}{*}{Lifecycle management} & - & Component tracking systems: detailed histories of individual parts. \\  & - & Warranty information: data on part warranties and service life. \\  & - & Supplier and manufacturer databases: specifications and advisories on components. \\  & - & Cost records: historical data on repair vs. replacement costs. \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Sources of information for services provided by health management. \begin{table}
\begin{tabular}{c c} \hline \hline
**Service** & **Description** \\ \hline \multirow{4}{*}{Lifecycle management} & Offers comprehensive management of aircraft components’ \\  & lifecycle, from installation through to repair and replacement, \\  & ensuring optimal performance throughout their service life and \\  & informing procurement and inventory decisions. \\ \hline \multirow{4}{*}{Operational decision support} & Provides decision-makers with actionable insights and \\  & recommendations to optimize flight operations, maintenance \\  & planning, and resource allocation, enhancing operational \\  & efficiency and effectiveness. \\ \hline \multirow{2}{*}{Safety analysis and risk management} & Analyzes data to identify potential safety risks and implements \\  & predictive models to mitigate these risks before they impact \\  & operations, enhancing overall safety. \\ \hline \multirow{2}{*}{Regulatory compliance monitoring} & Ensures that aircraft maintenance and operations comply with all \\  & relevant regulations and standards, leveraging data analytics to \\  & streamline compliance processes and reduce the risk of \\  & non-compliance penalties. \\ \hline \hline \end{tabular}
\end{table} 
Table 5: _Cont._These sources of information form a complex data ecosystem that feeds into the AI and analytics tools underpinning aviation HMGT services. By effectively integrating and analyzing data from these diverse sources, HMGT systems can deliver actionable insights, enabling proactive maintenance strategies, operational efficiency, and enhanced safety in aviation operations.