Core meaning
- Capability purpose
- Let work remain an independently manageable action whether standalone or contained by broader execution.
- Meaningful outcome
- A task has a clear current state, context, responsible actor, and resolution record.
- Boundaries — includes
- capture, clarification, assignment, parent/context linkage, due or schedule metadata, state transitions, completion, reopening, and archival.
- Boundaries — excludes
- project management, routine definition, reminder triggering, task-list organization, and executing domain-specific action logic.
- Terms and concepts
- A
task is the general actionable unit. A to-do is a task surfaced in standalone context.
Interaction Contract MLEs
Maintain task lifecycle
- Actor
- An authorized owner, participant, or coordinating agent.
- Command / intent
- Create or update one actionable unit of work.
- Current state
- A work need or existing task is available.
- Policies / invariants
- Context and parentage are explicit; completion is attributable; detaching or moving a task preserves identity and history; a due date does not imply a reminder was delivered.
- Transition
- Capture or revise action, context, responsibility, timing metadata, and execution state.
- Result
- A current actionable task with durable lifecycle history.
- Events / effects
- Completion may update a parent, create a result/update, or feed History.
- Unknowns
- Universal task status vocabulary and subtask depth are not established.
Rules and defaults
Rules / invariants
- Standalone and contained tasks may share a model without losing their context.
- Completion and reopening must remain distinguishable.
Recommended defaults
- Keep the action wording, responsible actor, parent/context, next state, and relevant time constraints explicit.
Unknown / unresolved
- The minimum metadata for very lightweight capture may vary by surface.
Statement provenance
| Statement | Semantic class | Evidence status | Source / note |
|---|
| Task is the general actionable unit; To-do is its standalone context. | rule/invariant | sourced | B11. |