Hello sir I hope you are doing well. I am uploading the Process simulation assignment. You have to do it in ExtendSim . Please I repeat Extendsim. How you create a model I give one sample model. Who ever will do it tell him to see it. You have to submit two mox file of both questions. I repeat do it in Extendsim to solve the simulation problem. Last time Unifolks disappointed me. In spite of giving the details whoever did it didn't put effort into it. This time don't disappoint me. sample. mox file will open only in Extendsim.
Q1. Investigating the Effect of Pooling Resources—Three types of jobs arrive to a process at a rate that randomly varies between two and five jobs per hour; that is, the interarrival times are governed by a uniform distribution with mean equal to three and a half jobs per hour. The process is currently configured in such a way that each arrival is sent to a team of specialists according to the type of job. Each team consists of three members. A team performs three activities to complete each job, and any team member can work on any of the three activities (A, B, or C). Figure 8.66 shows a flowchart of the process. The arrivals are not equally likely for each job type. Typically, 30 percent of the jobs are Type 1, 35 percent are Type 2, and 35 percent are Type 3. Processing times (in minutes) associated with the activities depend on the job type and are summarized in Table 8.4. Management is concerned with the current performance of the process and is considering cross-training the teams so that team members can work on any job type. a. Develop a simulation model of this process that can be used to model 1 day of operation; that is, one run of the model will consist of 8 hours of operation. b. Use your model to assess performance with the following measures: cycle times, resource use, and overtime (the time needed to finish all jobs after the process closes). Simulate 10 days of operation to collect data for your analysis. c. Assume that the teams are cross-trained and that all nine people can perform any of the activities in the process. Compare this design with the original process using the measures in Part (b) Q 2. Investigating the Effect of Rework Rates—A proposed business process consists of five serial workstations. One caseworker is positioned in each workstation. The processing times at each workstation are exponentially distributed with mean values of 11, 10, 11, 11, and 12 minutes, respectively. The interarrival times are uniformly distributed between 13 and 15 minutes. The workstations have an unlimited queuing capacity, and it is assumed that the downstream transfer time is negligible. The unique aspect of this process is that between Workstations 2 and 5, it is possible that the job will need to be reprocessed by the workstation immediately preceding the current one. For example, after Workstation 3, it is possible that the job will be sent back to the queue in Workstation 2. When this occurs, the transfer requires 3 minutes. The probability of rework remains the same regardless of the number of times a job is sent back for reprocessing. The rework probability is considered to be the same for all workstations and is currently estimated to be between 5 and 10 percent. a. Develop a simulation model of this process that is capable of running 10,000 minutes of operation. b. Run 10,000 minutes of operation for rework probabilities of 5, 6, 7, 8, 9, and 10 percent. Collect cycle time data for each run. c. Construct a plot of the average cycle time (y-axis) versus the rework probability (x-axis). Also, construct a plot of the maximum cycle time versus the rework probability. d. Assume that the processing times are constant. Rerun the simulation six times with the rework probabilities in Part (b). e. Construct plots of average cycle time and maximum cycle time versus the rework probability. Compare these plots with the ones obtained in Part (c).