As a Group Member,
So that I can communicate tasks,
I would like to be able to add a task.

As a Group Member,
So that I can tell more about the task,
I would like to be able to add a priority and a completion date to a task.

As a Group Member,
So that I can discuss tasks,
I would like to be able to comment on the task.

As a Group Member,
So that I can know what the tasks are,
I would like to see a list of tasks.

As a Group Member,
So that I can see tasks added to the Calendar,
I would like to be able to see the Calendar.

As a Group Member,
So that group can see my task in the Calendar,
I would like to be able to add task to the Calendar to the date when it should be completed.

As a Group Member,
So that group can see details of my task in the Calendar,
I would like to be able to see task priorities in different colours in the Calendar.

As a Group Member,
To keep track of the completed tasks,
I would like to be able to mark a task as completed.

As a potential user,
So that I can join a Group,
I would like to be able to sign up, sign in, sign out and log back in.

As a Group Member,
So that I can discuss all that matters to me with the group,
I can chat with other group members.