Two important parameters in this D/D/1 queuing system are the arrival rate and service rate. The reciprocals of these rates are the duration between successive entities and the duration of service for each entity. To examine these durations, do the following:
1. Double-click the Time-Based Entity Generator block to open its dialog box:
2. Observe that the Distribution parameter is set to Constant and that the Period parameter is set to 1. This means that the block generates a new entity every second.
3. Double-click the Single Server block to open its dialog box:
Observe that the Service time parameter is set to 1. This means that the server spends one second processing each entity that arrives at the block.
4. Click Cancel in both dialog boxes to dismiss them without changing any parameters.
The Period (Time-Baset Entity Generator) and Service time (Single Server) parameters have the same value, which means that the server completes an entity's service at exactly the same time that a new entity is being created.
