#A.2.9:11 — SoTA‑Echoing (informative; post‑2015 alignment)

Preface node heading:a-2-9-11-sota-echoing-informative-post-2015-alignment:5329

#Content

Informative. Alignment notes; not normative requirements.

• Adopt — ISO 24617‑2:2020 / multi-dimensional communicative functions. Modern dialogue‑act standards treat communicative behavior as potentially multi‑functional. A.2.9 mirrors this by allowing actTypes to be a set and by supporting shared carriers across multiple acts.
• Adapt — commitment-based semantics for communication (multi-agent/protocol practice, 2015+). A pragmatic way to avoid mental-state modeling is to track communication by its social/institutional effects, especially on commitments and protocol states. A.2.9 reflects this via institutes.commitments and explicit links to U.Commitment without modeling sincerity or intention.
• Adopt (warning) — illocutionary pluralism in multiparty discourse (2015+). One utterance commonly performs multiple recognizable functions. A.2.9 avoids the “single force” trap by permitting multi‑type acts and/or multiple acts sharing the same utterance and carriers.