User Story Cards help plan and prioritize functional requirements of an lean offering / MVP or prototype. They are the "natural" extension" of the Lean Offerings template allowing to describe every user story in a simple structure. A user story is always written from the perspective of a specific user using an lean offering / MVP or prototype in a special context. It starts with the description of what a user would like to to with the system in order to achieve a certain goal. The structure is as follows: <role><action>[<outcome>]
Finally, the user stories should be rated according to the level of DNA fit as well as their ease of implementation. This helps decide whether a user story is going to be implemented in the first place or not.