In: Operations Management
CASE 4: SHORT-TERM SCHEDULING
Stan's Furniture Refinishers has 7 items of furniture to
sand first and...
CASE 4: SHORT-TERM SCHEDULING
Stan's Furniture Refinishers has 7 items of furniture to
sand first and then varnish using the sending and varnishing
machines, respectively. The items and their times on these two
machines are shown in the table:
Item
Sanding time,
hrs.
Varnishing time, hrs.
A
8
7
B
6
4
C
5
8
D
8
12
E
10
14
F
12
8
G
4
6
Questions.
- Using the Johnson’s rule, identify the optimal
sequencing of these jobs. The jobs must go through the machines in
the same order starting with the sanding machine.
- Identify the cumulative flow time for the initial
sequencing and for the sequencing based on the Johnson’s rule.
Provide the existing sequence chart and Johnson’s rule
charts.
- Compare and explain your results.