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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.

Synthesis note · 2026-02-22 · sourced from Conversation Architecture Structure

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.

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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