decomposing-tasks

Task decomposition splits large features into 1-2 day, testable tasks with acceptance criteria. Use vertical slicing to build end-to-end feature pieces (API, UI, tests) or horizontal slicing to isolate layers. SPIDR workflow sequences dependencies and bounded scope aligned to your definition of done.

Vertical slicing delivers complete feature segments across all layers—API, UI, tests, docs—in one task. Horizontal slicing isolates single layers (backend only, then frontend, then tests). Vertical slicing produces shippable increments faster; horizontal slicing clarifies layer-specific dependencies and risk.

Decomposition produces bounded task sets with explicit dependencies and sequencing. Each task includes testable acceptance criteria and definition of done. SPIDR workflows order tasks by dependency flow, ensuring earlier work unblocks downstream items and estimation reflects actual, manageable scope.

Task decomposition handles both sprint and roadmap planning. Break strategic goals into feature-level decompositions, then slice each feature into 1-2 day sprints. Acceptance criteria and dependencies scale from individual sprints to multi-sprint roadmap sequencing.

Acceptance criteria define testable outcomes—specific API responses, UI states, test coverage thresholds. Definition of done includes code review, test coverage, documentation, and deployment readiness. Decomposition templates align criteria to both acceptance and done standards before task execution.