What are the standards around having multiple owners assigned to a sub task?

[Sara Creenan (M&T)]

Does anyone assign multiple users to sub tasks? Does Jira allow it? Is there confusion around who owns the tasks?

[Ryan]

To further on Joseph's response, and provide an anecdote, at my org, we use the Assignee on the Jira issue to determine who fully owns the solution / feature / problem. Then, sub-tasks might be the delegated work to other BAs or devs to help get the issue to completion. Reporter is always the stakeholder or "owner" of the request. Think of it in terms of a RACI model. The Reporter is the person that can sign-off or say the feature meets the need. Then, the Assignee is the actor to get the work to completion for a given issue (story or sub-task).

[Joe Pitt]

JIRA issues don't have owners. Issues have a Reporter who put in the issue and could be considered the owner. However the Reporter usually doesn't do the work on the issue. There can only be one Reporter

The Assignee could be considered the 'owner' of the issue while they are working on it. The assignee can, and often does, as the issue flows through the workflow. Issues (sub tasks included) can only have one assignee at a time.