There are two ways to tell if the timing belt has been replaced. One is obvious-you are looking at a service receipt showing the replacement.
Swimlane diagrams are used whenever you need to show activities, tasks, or process steps which are being performed by different actors/roles. You can use swimlanes to group activities in an activity diagram or process flow by any category what you need: by role, by system, by department, etc.
Usually placed on your mainsail, sail numbers are used for identification in sail boat races as well as if you are in trouble on the water. They can also be used by pirates to identify your boat so be careful! Our standard sail numbers are applied with insignia cloth.