<–Scope Go to ToC References–>
(Tentative)
Capitalised Terms used in PGM-AUA have the meaning defined in Table 1. Non-capitalised terms letter have the meaning commonly defined for the context in which they are used. The full set of MPAI-defined Terms is available online.
Table 1 – Terms used in PGM-AUA
| Terms | Definitions |
| Action | The impact on an M-Instance caused by an A-User. |
| Affordance | Action possibilities offered by a scene or its objects. |
| A-User | A User with a significant degree of autonomous operation specified by PGM-AUA and having a conversation with another User. |
| Canvas | The geometric container that contains the AV Scene providing the coordinate system, the dimensions, and Audio-Visual Scene used by the Geometry Parser and the Spatial Reasoning Engine rely on. |
| Constraints | Geometric, Topological, Space-Time, Intent-driven rules or limitations that govern spatial relationships and interactions. |
| H-User | A User directly operated by a human. It is the typical – but not exclusive – type of conversational partner of the A-User specified by |
| Modulation | The process of adapting and aligning a response to the User’s Personal Status and to the A-User’s Personality Profile, respectively. |
| Personality | The expressive identity of the A-User system – defined by a coherent set of traits, communicative preferences, and behavioural tendencies that shape how responses are produced and adapted. |
| Process Action | The request of a Process to another Process to perform an Action (Request) and the response of the requested Process (Response). |
| Referent | Any entity – physical, conceptual, or contextual – that is semantically pointed to or implied by the User’s input, gesture, gaze, or interaction. |
| Response scaffolding | The structured, layered approach an AI agent uses to provide a response reflecting its reasoning. |
| Salience score | A value between 0 and 1 – computed based on Loudness, Spatial Proximity, Frequency uniqueness, Temporal Onset, and Semantic Role – that quantifies the perceptual prominence of an Audio Object within a given time window and, therefore reflects how likely the A-User is to attend to or prioritise that sound. |
| User | The conversational partner of the A-User. |
<–Scope Go to ToC References–>
