Based on the precedence diagram below, please design a production line that 1) balances the workload; 2) increases the production efficiency. 

1.1. Please draw rectangular shapes to group tasks that belong to one workstation. You can draw directly on the diagram.     

1.2. Based on your grouping above, please list work elements for each workstation.   Work Station #1 Work Station #2 Work Station #3 Work Station #4     

1.3. Based on your grouping above and the cycle time of 72 seconds, what is the sum of task time for the line you have created? 

1.4. Based on your grouping above and the cycle time of 72 seconds, what is the total amount of idle time in this production line you have created? 

1.5. Based on your grouping above and the cycle time of 72 seconds, what is the efficiency of this production line you have created? 

1.6. What is the effective cycle time of the production line you have created?  

 

A 50 30 20 D E 45 20 F G 25 10 35