Question number (1):
a) For the part-machine matrix shown below, apply a clustering technique to form the GT cells of
machines.
b) Three machines from the seven above will constitute a GT cell. The From-To data for the machines
are shown in the table below.
TO
FROM
A
B
D
A
0
0
70
B
10
0
0
D
0
85
0
1. Determine the most logical sequence of machines for this data, according to Hollier Method 1,
and construct the flow diagram for the data, showing where and how many parts enter and exit
the system.
2. Repeat (1) using Hollier Method 2.
3. Compute the percentage of in-sequence moves and the percentage of backtracking moves in the
solution for the two methods. Which sequence is better, according to these measures?
Question number (2):
a) For the part-machine matrix shown below, apply the rank order clustering technique to form the GT
cells of machines.
Parts ‘Number’
1
2
A
Machines
1
5
6
1
1
1
1
D
E
4
1
B
C
3
1
1
1
1
1
1
b) If we suppose that the previous five machines will constitute a GT cell. The From-To data for the
machines are shown in the table below.
FROM
1
2
3
4
5
1
0
0
0
100
0
2
40
0
0
0
105
TO
3
110
0
0
50
0
4
0
115
0
0
50
5
0
0
0
0
0
1. Determine the most logical sequence of machines for this data, according to Hollier Method 1,
and construct the flow diagram for the data, showing where and how many parts enter and exit
the system.
2. Repeat (1) using Hollier Method 2.
3. Compute the percentage of in-sequence moves and the percentage of backtracking moves in the
solution for the two methods. Which sequence is better, according to these measures?