| Function | Ref. Model | I/O Data | SubAIMs | JSON MData | Profiles | Ref. Software | Conformance | Performance |
1. Function
The Perceptual Domain Access (PGM‑PDA) AIM is a Sub-AIM of Domain Access (PGM‑DAC). It serves the Context Description AIM, which requires situational, single‑turn semantic grounding during perceptual processing.
PGM‑PDA:
- Receives the AUC-DAC Request from A‑User Control and the Domain Requests from Context Description via the Directed Semantic Query Interface.
- Resolves each Domain Request with reference to the relevant external domain knowledge source.
- Obtains Interaction History from the Private Storage of the Module by sending a DAC Interaction History Request and receiving the DAC Interaction History Response.
- Returns the Domain Response appropriate to the Subject of the Request (audio, visual, user or ava).
- Reports the outcome, including any failure of an external domain knowledge source, with an AUC-DAC Response.
Each request is stateless and self‑contained: no session continuity is preserved across successive requests. PGM‑PDA does not perform perception or reasoning and does not modify the descriptors produced by other AI Modules.
2. Reference Model
Figure 1 depicts the Reference Model of the Perceptual Domain Access (PGM‑PDA) AIM.
Figure 1 – The Perceptual Domain Access (PGM‑PDA) AIM
3. Input/Output Data
Table 1 specifies the Input and Output Data of the Perceptual Domain Access (PGM‑PDA) AIM.
Table 1 – I/O Data of the Perceptual Domain Access (PGM‑PDA) AIM
| Input | Description |
|---|---|
| AUC-DAC Request | Instructions from the A‑User Control AIM specifying the operational scope, access rights, and session constraints for domain knowledge retrieval. |
| Domain Request | A single‑turn semantic grounding request from the Context Description AIM via the Directed Semantic Query Interface. |
| DAC Interaction History Response | Interaction History elements returned by the Private Storage of the Module in reply to a DAC Interaction History Request. |
| Output | Description |
| Domain Response | Structured domain knowledge returned to Context Description, appropriate to the Subject of the Request (audio, visual, user or ava). |
| DAC Interaction History Request | Request to the Private Storage of the Module for Interaction History elements that support the grounding of the Domain Requests. |
| AUC-DAC Response | Response describing the execution and outcome of the processing, including any external service access failures. It is reported to the A‑User Control AIM. |
4. Sub-AIMs
No Sub-AIMs.
5. JSON Metadata
https://schemas.mpai.community/PGM1/V1.0/AIMs/PerceptualDomainAccess.json
6. Profiles
No Profiles.
7. Reference Software
Not part of this specification.
8. Conformance Testing
Table 2 provides the Conformance Testing Method for the Perceptual Domain Access (PGM‑PDA) AIM.
If a schema contains references to other schemas, conformance of data for the primary schema implies that any data referencing a secondary schema shall also validate against the relevant schema, if present, and conform with the Qualifier, if present.
| Receives | AUC-DAC Request | Shall validate against the AUC-DAC schema, with Mode RQ. |
| Domain Request | Shall validate against the Domain schema, with Mode RQ. | |
| DAC Interaction History Response | Shall validate against the Interaction History schema, with Mode RS. | |
| Produces | Domain Response | Shall validate against the Domain schema, with Mode RS. |
| DAC Interaction History Request | Shall validate against the Interaction History schema, with Mode RQ. | |
| AUC-DAC Response | Shall validate against the AUC-DAC schema, with Mode RS. |
9. Performance Assessment
Not part of this specification.
