Real-time collaboration on Agile board

As a scrum team member, I would like to see other members changes to the board without having to refresh the page.

Note: For scrum teams in which members are scatters in different locations, a lot of overhead will be eliminated if team members can see each other's changes on the board without asking each other to refresh the page.

A/C:

• All viewers of a board should automatically see the below items in agile board as the board content is getting updated by other users:
  • updated order of stories
  • newly created sprint
  • stories added to a sprint/backlog
  • stories removed from a sprint/backlog
  • updated title of a story
  • updated attributed of a story (priority, type, etc.)
  • updates to epics (add, remove, order, color, etc.)
• Changes should be applied no later than 2 seconds from original update