TwoTurn

TwoTurn is a term used in various fields to describe mechanisms or concepts that require two sequential turns or steps to complete a task. The two-turn model is typically applied to workflows, protocols, or interactions where the first turn initiates or prepares, and the second turn completes, confirms, or finalizes the action. The general idea is to partition a process into two distinct stages to balance speed, clarity, and security.

In computing and networks, a two-turn protocol often involves an initial message from a requester followed by a second message that delivers the final result or a confirmation. This structure can reduce premature execution, enable intermediate validation, and allow for error handling before finalization. Implementations vary by context, with differences in what is exchanged, how trust is established, and where failures are handled.

In user interface and product design, two-turn interactions separate initiation from confirmation. For example, a first action may preview or set up parameters, while a second action confirms and executes. This approach can reduce accidental operations and improve user control, especially in critical tasks such as data changes or financial transactions.

In games, puzzles, and decision-making contexts, TwoTurn can describe scenarios where outcomes are determined by two explicit moves or stages. This framing helps designers analyze strategic planning over two turns and creates opportunities for anticipation and counterplay.

The term remains domain-specific and lacks a universal standard. Users should consult relevant domain documentation to understand how TwoTurn is implemented and evaluated within a given system, as practices and terminology vary. See also two-step processes, handshake protocols, and staged workflows.