Assigning a story in Uclusion means it shows up in the swimlane of the assignee, only an assignee can start the story, assignees are automatically notified of story changes and must provide progress reports or an estimated completion date in the ‘Not Ready for Feedback’ stage.
A story can be assigned to multiple collaborators.
Todos within a story do not have individual assignees. All tracking happens at the story level so Todos are just the responsibility of all assignees (unless something untracked by Uclusion is written in the Todo).
Everyone who votes on a story or creates a comment within it is a collaborator on that story. Collaborators are visible inside the story and also on the swimlanes.
Being a collaborator can also affect Notifications.