Name several entities, attributes, activities, events, and state variables for the following systems: a$.$ A fast$-$food restaurant b$.$ A taxicab company c$.$ An automobile assembly line $2.$ Consider the following manufacturing system where two distinct types of parts are processed on two distinct machines located at the first station and then inspected by an inspector at a second workstation. Type $1$ parts are processed only on machine $1$ but type $2$ parts can be processed on both machine $1$ and machine $2.$ A part enters the system and waits until it is turn to be processed on its corresponding machine. For type $2$ parts, if both machines are idle, then the part is processed in machine $2.$ After processing on a machine is completed, they continue to the second workstation where they are inspected. At the inspection station, the parts are classified as Good, or Repair. Good parts depart the system; and Repair parts are recycled back to the machines where they are reworked. $($Use the given scenarios below to classify the status of a particular inspected part$).$ The waiting parts are ordered at both the machine and the inspection station. Assume that there is a single queue for the machine; whenever the machine becomes idle the part with the highest priority in the queue seizes the machine $($same holds for the inspector$).$ The Type $1$ parts have priority over the Type $2$ parts within the queue. The first portion of the queue contains any Type $1$ parts, ordered according to arrival at the queue. The Type $2$ parts follow the Type $1$ parts, again ordered according to their sequence of arrival. The priority scheme is non$-$preemptive; that is$,$ if a Type $2$ part is being processed when a Type $1$ part arrives, processing is not interrupted. The repairable parts returned to the machine$$s queue have the lowest priority. These parts wait behind any regular Type $1$ and $2$ parts and are ordered according to the time at which they re$-$enter the queue. This same priority scheme is used for re$-$inspection of the reworked parts. Thus, there are three distinct classes of priority at both machine and inspector queues: Type $1,$ Type $2,$ and Repairable. The inspection time for each part, regardless of type or rework status is $2$ minutes.