This product is very good, with that being said it had one glaring hole that forced us as a team to pick a different backlog tool.
We needed to be able to assign team members to stories (tasks assignment is even better allowing more than one person to work on a high priority story, but I can live without the task breakdown in a story). Story ownership is also good when you have more than one person on the product team submitting backlog items.
Assigning developers/users to stories provides several different things:
1. as a scrum master i need to manage resources and make sure i know who is working on what and what their workload velocity looks like for a given sprint
2. product owners need to know who to talk to regarding a story
3. team members need to be able to see at a glance the stories assigned to them
Agile purism says that always the top story is what is being worked on and all people are interchangeable and can work on all things... this is however not always a reality in organizations big or small and certain tasks or stories fall naturally to certain people.
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