| Function | Ref. Model | I/O Data | SubAIMs | JSON MData | Profiles | Ref. Software | Conformance | Performance |
1 Functions
The Health Front End (AIH-HFE) AIM enables the End User to
- Register with the Health Back End.
- Use Health Devices to collect various types of Health Data.
- Provide a Model Licence to each Health Data collected.
- Request the Health Front End to Process AIH Data.
- Send AIH Data to the Health Back End.
- Request The Back End to Process AIH Data.
The Health Front End
- Stores AIH Data as combination of Model Licence and Health Data.
- Processes AIH Data.
- Adds Anomaly and Risk Alerting (ARA) Data, if present, to each AIH Data.
- Receives requests for trained NN Models from Health Back End.
- Sends its trained NN Models to the Health Back End for Federated Learning.
The End User owning the Front End is not bound by the Model Licence.
2 Reference Model
Figure 2 depicts the Reference Model of the Health Front End (AIH-HFE) AIM.

Figure 2 – Reference Model of the Health Front End (AIH-HFE) AIM
3 I/O Data
Table 1 specifies the Input and Output Data of the Health Front End (AIH-HFE) AIM.
Table 1 – I/O Data of Health Front End (AIH-HFE) AIM
| Input | Description |
| Register Request | Data to request to Register. |
| Register Response | Data in response to a request to Register. |
| Federated Learn Request | Request to provide an NN Model. |
| AIH Data Process Request | End User’s Request to process specific AIH Data |
| AIH Data Process Response | End User’s Request to process specific AIH Data |
| Health Data | Data from End User’s health device. |
| Model Licence | Data Describing End User’s Licensing Terms and Conditions. |
| AIH Data | AIH Data to be stored. |
| Output | Description |
| Register Request | Data to request to Register. |
| AIH Data Process Request | End User’s Request to process specific AIH Data. |
| AIH Data Process Response | Response to End User’s Request to process specific AIH Data. |
| Federated Learn Response | Response to the request to provide an NN Model. |
| AIH Data | AIH Data retrieved. |
4 SubAIMs
4.1 Reference Model
Figure 1 depicts the Reference Model of the Health Front End (AIH-HFE).

Figure 1 – Reference Model of the Health Front End (AIH-HFE) AIW
4.2 Operation
The AIH-HFE AIM operation develops as follows
- End User registers with HFE and HBE.
- End User acquire Health Data with a Health Device.
- End User attaches Model Licence to Health Data.
- Model Licencing stores AIH Data (including Health Data and Model Licence).
- End User process AIH Data locally.
- End User stores AIH Data to HFE.
- End User process AIH Data remotely.
- HFE receives Federated Learn request.
- HFE sends NN Model to HBE.
4.3 Functions of AI Modules
Table 2 specifies the Function of the AIH-HFE AIM’s SubAIMs.
Table 2 – Function of the AIH-HFE AIM’s SubAIMs
| AI Module | Description |
| Model Licensing | Adds Model Licence to Health Data. |
| AIH Data Processing | Processes AIH Data. |
| Anomaly and Risk Alerting | Discovers Anomalies and signals Risks in AIH Data. |
| Storage | Stores and retrieves AIH Data. |
4.4 I/O Data of AI Modules
Table 3 specifies the Function of the AIH-HFE AIM’s SubAIMs.
Table 3 – Functions of AIH-HFE AIM’s SubAIMs
| Acronym | AI Module | Receives | Produces |
| AIH-MDL | Model Licensing | Health Data | AIH Data |
| Model Licence | |||
| AIH-HDP | AIH Data Processing | Federated Learn Request | Federated Learn Response |
| AIH Data Process Request | AIH Data Process Response | ||
| AIH Data Process Response | AIH Data Process Request | ||
| Health Data | |||
| Model Licence | |||
| AIH-ARA | Anomaly and Risk Alerting | AIH Data | ARA Data |
| Register Request | |||
| Register Response | |||
| AIH-STR | Storage | AIH Data Process Request | AIH Data Process Response |
| AIH Data | AIH Data |
4.5 AIMs and JSON Metadata
Table 4 provides the links to the AIM specifications and to the JSON syntaxes. AIM1 indicates the Composite AIM and AIM2 their SubAIMs.
Table 4 – AIMs and JSON Metadata
| AIM1 | AIM2 | Name | JSON |
| AIH-HFE | Health Front End | X | |
| AIH-MDL | Model Licensing | X | |
| AIH-HFP | AIH Data Processing | X | |
| AIH-ARA | Anomaly and Risk Alerting | X | |
| AIH-STR | Storage | X |
5 JSON Metadata
https://schemas.mpai.community/AIH1/V1.0/AIMs/HealthFrontEnd.json
6 Profiles
No Profiles