subtask

A subtask is a unit of work that forms part of a larger task. It is used to break complex work into smaller, more manageable pieces. Subtasks typically carry their own estimates, assignees, and due dates, while contributing to the completion of the parent task.

In project management and software development, subtasks support a work breakdown structure by enabling more precise planning and tracking. Decomposing work helps distribute resources, monitor progress at a component level, and identify bottlenecks. Subtasks can also improve accountability by assigning specific individuals to distinct activities.

In issue trackers and project boards, a parent task or feature often contains multiple subtasks such as design, implementation, testing, and documentation. This structure allows teams to reflect partial progress while the overall objective remains in view. Subtasks have their own statuses and can be completed independently, though many systems consider the parent complete only after all subtasks are finished.

In workflow and automation contexts, subtasks support parallel execution and clearer sequencing. Subtasks may have dependencies both on the parent and on other subtasks, enabling more flexible scheduling and error handling. If a subtask fails or is delayed, it can trigger notifications or halting of downstream work.

A subtask contrasts with a standalone task by its relationship to a larger objective. While useful for clarity and assignment, excessive subdivision can increase administrative overhead and complicate coordination. Properly scoped subtasks balance granularity with maintainability and alignment to the parent goal.