Systems under test can grow to encompass hundreds, if not thousands
of user stories. To make this manageable at scale, we break down
each user story like this:
Name : Starts as a free user with 10 USD in credit
Category: Billing User Stories
Group : User States
The 'name' is the summary text of the user story itself, which
should be no longer than a single sentence, please.
The 'category' is the general group that the user story belongs to.
These are the top-level groups, such as 'Registration', 'Billing'
and so forth.
The 'group' is the specific group _inside_ the category that the
user story belongs to. The groups are specific to the category.
