Operations Management Individual Assignment 

Assignment Task 

Questions 

1. Draw the precedence diagram of this assembly line, and calculate the workstation cycle time along with the theoretical number of workstations to achieve the demand?

2. Balance the assembly line using the largest number of following tasks as the primary priority rule and the longest-task-time as the secondary priority rule to achieve the demand. Construct tables to show the number of following tasks of each task and to arrange the tasks into workstations. Calculate the idle time of each workstation and the efficiency of the assembly line?

3. Re-balance the assembly line using the longest-task-time as the primary priority rule and the largest number of following tasks as the secondary priority rule to achieve the new demand. Construct a table to arrange the tasks into workstations. Calculate the idle time of each workstation and the efficiency of the assembly line?

4. The restaurant considers another option to reduce customers’ waiting time by using a fully automatic machine that can perform the full service to customers with an average service time of 6 minutes (assuming normal distribution). If the current staff wants to match the average customer waiting time achieved by the automatic machine, what is the average service time that the staff needs to perform? 

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