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.
The purpose of the functional orthotic is to accurately and precisely position the foot throughout the gait cycle so as to promote proper function. Its function is not merely to support the arch, as is often the case with commercial appliances or arch supports purchased in retail stores.