I am not sure when you would break story into stories or into tasks.
Let's say you have a story that talks about bringing down a service, and to do that you have to analyze and depreciate 5 api where each one takes one week
How would you do that ?
1) break story into 5 stories and this way every story is less than a sprint and can be owned by someone (but cant be demoed)
2) break a story into tasks but then multiple people is working on a single story and one story is lasting more than sprint
Other? Thank you
Why are you doing that? Who is going to benefit from it?
That information will help you to create the story associated with the work item.
As a [person that benefits from this work] I want the service brought down so that [reason]
Now, once you have defined the user story you can then add sub-tasks to it that describe how the work will be done. e.g.