Consider that you have a situation that the notification is created by the Production / Quality or other person in the Plant when they want to report any incident. Once the notification is created then the Next status to be managed by next set of people may be the Plant maintenance Personnel only. As all of them will be using the same notification type one of the easiest way is to mange with the User status and authorization group.
1) We need to create a Status profile with the required status. And also we can create different authorisation code.
2) The authorization code is the key factor ie) if the user has that authority then it can be maintained.
2) Now the Status has to be to be attached to the Notification type.