Patent ID: 8060539

Claim:
A method of notifying at least one invitee device of changes to an initial event, the changes being received at a user device connected to the at least one invitee device by at least one server in a communications network, the method comprising: receiving at the user device the initial event comprising a plurality of initial event elements and sending the initial event to the at least one invitee device; receiving at the user device an updated event comprising a plurality of updated event elements, each updated event element corresponding to a respective initial event element, the updated event elements comprising at least one changed event element that differs from the respective at least one initial event element; automatically providing, at one of the user device, the at least one invitee device, and the at least one server, an explicit notification of the at least one changed event element by: automatically identifying the initial event elements from the initial event; automatically identifying the updated event elements from the updated event; automatically comparing each of the updated event elements to each of the respective initial event elements to determine the at least one changed event element; automatically generating the notification, including text indicating that the at least one changed event element is changed from the respective at least one initial event element; and automatically adding the notification to the updated event; and displaying the updated event including the explicit notification on the at least one invitee device.