Hi @Tatyana,
The main difference in my opinion is that Epic > Story is at a higher level than Story > Sub-tasks, which means that Epic > Story is meant for defining, planning and tracking the work to do (at a higher level), while Story > Sub-task is for planning/executing the work within a story (at micro level).
Some differences are:
- The stories are higher in hierarchy than sub-tasks. In Jira, issue category is Epics > Story, Task, Bugs > Sub-Tasks
- An epic can have stories from multiple projects, while a story can have only its own sub-tasks (from the same project the story belongs to)
- Stories are visible in backlog when means you can plan/rank them; sub-tasks are not visible in backlog
- Jira progress reports (sprint burndown, velocity) do not count sub-tasks and their estimates; they only track stories.
Hope this helps.
Danut.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.