PGM-AUA V1.0 AIMs - CXC-AUS Interface

Function
Ref. Model
I/O Data
SubAIMs
JSON MData
Profiles
Ref. Software
Conformance
Performance

1 Functions

The CXC-AUS Interface (PGM‑CAI) AIM is the coordinating SubAIM of Context Capture. It holds the judgement that the directed describers do not: it receives the CXC Directive from A‑User Control, decides what stored context is needed to satisfy it, and obtains that context from the Interaction History. Having retrieved the relevant prior Scene Descriptors, it supplies them to the directed describers so that they refine the current capture against remembered context; it collects the Scene Descriptors the describers produce, emits them as the Context Capture outputs, writes the result back to the interaction history, and produces the consolidated CXC Status.

The Directed Audio Scene Description and Directed Visual Scene Description SubAIMs are pure describers: each receives its modality’s Object and the corresponding interaction‑history Scene Descriptors and produces refined Scene Descriptors. The decision of what to retrieve and store, and the correlation with A‑User Control’s Directive, rest entirely with the CXC-AUS Interface. A‑User Control issues a single CXC Directive to Context Capture; the CXC-AUS Interface derives from it the per‑modality work the describers perform, and never instructs the describers to access the interaction history themselves.

The PGM‑CAI AIM:

Receives	CXC Directive	Goal and subjects of the capture, from A‑User Control.
	Interaction History RS	Response carrying the requested stored context, including prior Scene Descriptors.
	Audio Scene Descriptors	Refined audio descriptors produced by Directed Audio Scene Description.
	Visual Scene Descriptors	Refined visual descriptors produced by Directed Visual Scene Description.
Produces	Interaction History RQ	Request for stored context, and the write‑back of produced descriptors, to the interaction history.
	IH Audio Scene Descriptors	Interaction‑history audio descriptors supplied to Directed Audio Scene Description.
	IH Visual Scene Descriptors	Interaction‑history visual descriptors supplied to Directed Visual Scene Description.
	Audio Scene Descriptors	Audio Scene Descriptors emitted as a Context Capture output.
	Visual Scene Descriptors	Visual Scene Descriptors emitted as a Context Capture output.
	CXC Status	Consolidated decision‑and‑outcome report to A‑User Control.

2 Reference Model

Figure 1 depicts the Reference Model of the CXC-AUS Interface (PGM‑CAI) AIM.

Figure 1 – Reference Model of the CXC-AUS Interface (PGM‑CAI) AIM

3 I/O Data

Table 1 specifies the Input and Output Data of the CXC-AUS Interface (PGM‑CAI) AIM.

Table 1 – Input and Output Data of the CXC-AUS Interface (PGM‑CAI) AIM

Input	Description
CXC Directive	Goal and subjects of the capture, from A‑User Control.
Interaction History RS	Response carrying the requested stored context, including prior Scene Descriptors.
Audio Scene Descriptors	Refined audio descriptors produced by Directed Audio Scene Description.
Visual Scene Descriptors	Refined visual descriptors produced by Directed Visual Scene Description.
Output	Description
Interaction History RQ	Request for stored context, and write‑back of produced descriptors, to the interaction history.
IH Audio Scene Descriptors	Interaction‑history audio descriptors supplied to Directed Audio Scene Description.
IH Visual Scene Descriptors	Interaction‑history visual descriptors supplied to Directed Visual Scene Description.
Audio Scene Descriptors	Audio Scene Descriptors emitted as a Context Capture output.
Visual Scene Descriptors	Visual Scene Descriptors emitted as a Context Capture output.
CXC Status	Consolidated decision‑and‑outcome report to A‑User Control.

4 SubAIMs

No SubAIMs.

5 JSON Metadata

https://schemas.mpai.community/PGM1/V1.0/AIMs/CXCAUSInterface.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 CXC-AUS Interface (PGM‑CAI) 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.

Table 2 – Conformance Testing Method for the CXC-AUS Interface (PGM‑CAI) AIM

Receives	CXC Directive	Shall validate against CXC Directive schema.
	Interaction History RS	Shall validate against Interaction History schema.
	Audio Scene Descriptors	Shall validate against Audio Scene Descriptors schema.
	Visual Scene Descriptors	Shall validate against Visual Scene Descriptors schema.
Produces	Interaction History RQ	Shall validate against Interaction History schema.
	Audio Scene Descriptors	Shall validate against Audio Scene Descriptors schema.
	Visual Scene Descriptors	Shall validate against Visual Scene Descriptors schema.
	CXC Status	Shall validate against CXC Status schema.

9 Performance Assessment