A proposal has been submitted to replace a group of assembly workers, each working individually, with an assembly line. The following table gives the individual work elements.
Element Te(min) Immediate predecessors
1 1.0 ---
2 0.5 ---
3 0.8 1,2
4 0.3 2
5 1.2 3
6 0.2 3,4
7 0.5 4
8 1.5 5,6,7
The demand rate for this job is 1600 units/week (assume 40h/week) and the current number of operators required to meet this demand is eight using the individual manual workers.
a) Construct the precedence diagram from the data provided on work elements.
b) Use the largest-candidate rule to assign work elements to stations. What is the balance delay for the solution?