Conversational AI Systems Language Understanding and Pragmatics

What six problems must every conversation solve?

Schegloff's Conversation Analysis identifies six universal organizational challenges that speakers navigate in all talk-in-interaction. Understanding these helps explain why current AI dialogue systems fall short of human fluency.

Note · 2026-02-22 · sourced from Conversation Architecture Structure
Where exactly does language competence break down in LLMs? Why do AI conversations reliably break down after multiple turns? How should researchers navigate LLM reasoning research?

Schegloff's Conversation Analysis identifies six "generic orders of organization" — problems that every conversation must solve for orderly interaction to proceed:

  1. Turn-taking — who should talk next and when? How does this affect the construction and understanding of turns themselves?

  2. Action-formation — how are the resources of language, body, environment, and position fashioned into recognizable actions (requesting, inviting, complaining, agreeing, rejecting) in a class of unknown size?

  3. Sequence-organization — how are successive turns formed to be "coherent" with prior turns, and what is the nature of that coherence?

  4. Trouble-handling — how to deal with problems in speaking, hearing, and understanding so that interaction doesn't freeze, intersubjectivity is maintained or restored, and the sequence can progress?

  5. Word-selection — how are the components of a turn selected, and how does that selection shape understanding by recipients?

  6. Overall structural organization — how does the overall composition of an interaction get structured, and how does placement inform the construction and understanding of talk?

These are not theoretical constructs — they have empirical support and appear to be language-universal. Properties of sequence organization also generalize to text-based chats, though digital interaction may follow slightly different patterns.

The practical relevance for AI: current dialogue systems explicitly address only turn-taking (who responds) and action-formation (intent classification). Sequence-organization is partially addressed through context windows. Trouble-handling (repair) is almost entirely absent — since Do language models actually build shared understanding in conversation?, models skip the repair sequences that humans use to maintain intersubjectivity. Word-selection receives some attention through style control. Overall structural organization is ignored.

This means current AI dialogue addresses roughly 2 of 6 fundamental conversational requirements. The other 4 represent a design space that remains largely unexplored.

Since What three layers must discourse systems actually track?, Schegloff's six orders provide the conversational-level complement to Grosz & Sidner's discourse-level framework. The two are not competing — they describe different levels of the same phenomenon.


Source: Conversation Architecture Structure

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Original note title

sequence organization in talk-in-interaction has six generic orders that all conversation must solve — turn-taking action-formation sequence-organization trouble-handling word-selection and overall structure