Could someone point me in the right direction. If three different web applications all rely on knowing when a piece of data changes, how does webapp #1 who makes the update, notify webapp #2 and webapp #3 that they need to make a request to update their view?
For example: User of webapp #1 updates the status of something in a database and needs to inform the users of webapp #2 and webapp #3, who are updating other data yet watching for that status to change, that they need to update their view (fetch updated data from a database, or call some other method based on the changed status value). It sounds like the Observer pattern, but I don't know. Leo
