Split oversized features, epics, and stories into thin, demonstrable, deployable slices through progressive admission: start with a closed end-to-end skeleton, then admit one case at a time. Use to choose or sequence delivery slices, including message, schema, import, API, form, path, rule, persona, or channel rollouts. Do not use merely to format an already-chosen split as user-visible outcomes; that belongs to user-pov-sliced-stories.
