**Unformatted text preview: **1 Product-Process Matrix
(a) Process on left or right of the Natural Line of Product-Process Matrix are either less Process flexibil
(b) Manufacturing ops process types are of high volume and low variety
Example: Job Shop are make-to-measure tailor process where the process produce series o
Job Shop is multi-types of flow units such as the application screening
Example: Batch Process are components of car in batches where the process requires speci
(c) Service ops process types are of low volume and high variety
2 Utilisation
(a) Formula: Utilisation = Flow Rate/ Capacity = Ans %
(b) Utilisation < 100%
(c) Two Types of Utilisation:
Process Utilisation = Flow Rate / Process Capacity
Resource Utilisation = Flow Rate / Resource Capacity
(d) Bottleneck has the lowest processing rate but has the highest utilisation 3 Implied Utilisation
(a) Formula: Implied Utilisation = Total Demand / Available Capacity = Total Workload/ Available Cap
(b) Available Capacity is aka Processing Rate
(c) Implied Utilisation can be more than 100% and the highest implied utilisation is the bottleneck either less Process flexibility or more Process flexibiluty than is required, thus have high (excess) operating cost e process produce series of product each differs in its needs
ation screening
the process requires specialised skills with changeover at each stage like doors and headlights Workload/ Available Capacity = Total Requested Capacity/ Available Capacity tion is the bottleneck perating cost Given in Q
Method 1: Flow Unit is one Generic Application
B C D = (C/B) * 60min
Product Flow Activity
Product Mix
File
Contact persons
Contact employees
Grade/school analysis
Confirmation letter Number
Activity
of
Available Capacity
Time (mins) Workers
(apps/hr)
Consulting
3
20
15
8
2 1
2
3
2
1 20
6
12
15
30 1
1
1
0
1 Staf
1
0
1
0
1 Method 2: Flow Unit is one Minute of Work B C D = C * 60min
Product Flow Activity
Product Mix
File
Contact persons
Contact employees
Grade/school analysis
Confirmation letter Number
Activity
of
Available Capacity
Time (mins) Workers
(mins/hr)
Consulting
3
20
15
8
2 1
2
3
2
1 60
120
180
120
60 1
1
1
0
1 Staf
1
0
1
0
1 Lim Winston:
Implied Utilisation =
Total Workload/
Available Capacity E.g. H7 =
H$6 * E7
K
Requested Capacity (applications/hr) oduct Flow Interns
1
0
0
1
1 Consulting
3
3
3
3
0
3 Staf
11
11
0
11
0
11 Interns
4
4
0
0
4
4 Total
18
18
3
14
4
18 E.g. H20 =
H$19 * E20 *
$B20
K
Requested Capacity (minutes/hr) oduct Flow Interns
1
0
0
1
1 Consulting
3
9
60
45
0
6 Staf
11
33
0
165
0
22 Interns
4
12
0
0
32
8 Total
18
54
60
210
32
36 E = K/ D Implied
Utilization
90%
50%
117%
27%
60% Implied Utilitsation =
Total Demand Rate/
Available Capacity
Lim Winston:
Bottleneck is the act
Bottleneck?
whose resource capa
is the lowest (i.e.
(based on
highest implied
utilisation)
utilisation rate). This
also form the proces
capacity <-- bottleneck Lim Winston:
Every Hour, the entire
process would receive
consulting, 11 staff an
internship applications E = K/ D Implied
Utilization
90%
50%
117%
27%
60% Bottleneck?
(based on
utilisation) <-- bottleneck For cell H20 to J20, as
product flow indicate a
types of flow unit will
undergo file activity,
hence, the cell contain
11, 4 CUM multiple b
activity time respect m Winston:
lied Utilisation =
al Workload/
ilable Capacity lied Utilitsation =
al Demand Rate/
ilable Capacity
Lim Winston:
Bottleneck is the activity
whose resource capacity
is the lowest (i.e.
highest implied
utilisation rate). This will
also form the process
capacity Lim Winston:
Every Hour, the entire
process would receive 3
consulting, 11 staff and 4
internship applications.
For cell H20 to J20, as
product flow indicate all 3
types of flow unit will
undergo file activity,
hence, the cell contains, 3,
11, 4 CUM multiple by
activity time respectively Given in Q
Method 1: Flow Unit is one Generic Application
B C D = (C/B) * 60min
Product Flow Activity
Product Mix
File
Contact persons
Contact employees
Grade/school analysis
Confirmation letter Number
Activity
of
Available Capacity
Time (mins) Workers
(apps/hr)
Consulting
#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0! Staf Lim Winston:
Implied Utilisation =
Total Workload/
Available Capacity E.g. H7 =
H$6 * E7
K
Requested Capacity (applications/hr) oduct Flow Interns Consulting Staf Interns 0
0
0
0
0 0
0
0
0
0 0
0
0
0
0 Total
0
0
0
0
0
0 E = K/ D Implied
Utilization
#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0!
#DIV/0! Implied Utilitsation =
Total Demand Rate/
Available Capacity
Lim Winston:
Bottleneck is the act
Bottleneck?
whose resource capa
is the lowest (i.e.
(based on
highest implied
utilisation)
utilisation rate). This
also form the proces
#DIV/0! capacity #DIV/0!
#DIV/0!
#DIV/0!
#DIV/0! Winston:
lied Utilisation =
al Workload/
ilable Capacity lied Utilitsation =
al Demand Rate/
ilable Capacity
Lim Winston:
Bottleneck is the activity
whose resource capacity
is the lowest (i.e.
highest implied
utilisation rate). This will
also form the process
capacity ...

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