Labor Assignments In either job or Batch production systems, the problem is to determine the number of workers needed in each station to achieve the required output from a given production line The following example illustrates this problem 22/03/2013 lec# 7 & 8

Labor Assignments (cont..) Consider the production as shown in fig.5.12, requiring 20 stations to complete the assembly For convenience the stations are numbered form left to right in the direction of material flow. Subassemblies 1 & 2 are combined in Station 5, which is also common input station for the three parallel branches 6-9, 7-10, & 8-11 These branches are required in this example bcz of limitations on space, equipment & labor available to work at the stations 22/03/2013 lec# 7 & 8

Labor Assignments (cont..) The output form three branches, i.e, from station 9, 10 & 11- goes into common stage, from which parts for station 12 & 13 are drawn In station 17, two subassemblies are joined in the ratio 2:5. Finally station 18 supplies both station 19 & 20, where the final processing is accomplished Fig.5.12 also show the input / output requirements per worker at each station; for example, in station 18 a worker will require 16 units of input & will produce 12 good units 22/03/2013 lec# 7 & 8

Labor Assignments (cont..) Table 5.11 presents the tabular approach. the information contained in columns 1,2,3,4,5 & 10 is known for the given product By way of illustration consider station 17, production per worker at this location is 9 units, but the next work station, station 18, requires 16 units per worker as its input. The maximum number of workers that can be assigned to station 17 is 8 22/03/2013 lec# 7 & 8

Labor Assignments (cont..) In this example the required output is 16 units from station 20 & 18 units from unit from station 19 After accounting for present inventories by completing column 2, the procedure is to work backword from the last work area (station 20), filling in all the columns for each station . 22/03/2013 lec# 7 & 8