supplylogisticmanagement-ch72016.ppt
Download
Report
Transcript supplylogisticmanagement-ch72016.ppt
Supply Chain Management; Chapter 7
Department of Business Administration
SPRING 2015-2016
Chapter 7: Supply Chain and Logistics Management
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Outline: What You Will Learn . . .
Define supply chain and logistics management
Discuss the nature and importance supply chain and
logistics management
Discuss the goal of the Supply Chain Management.
Discuss the Value Chain
Describe fhe five major Supply Chain drivers
Define Global Supply Chain
Discuss the concept of Ethics and Supply Chain
Define Strategic Responsibilities and Supply Chain...
2
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Same old same old-Supply Chain
The practice of supply chain management is guided by some
basic underlying concepts that have not changed much over the
centuries.
Clerchus of Sparta in 401 B.C., recognized the value of supply
in his speech to the small Greek army. In other words survival
of the Greek army depended not only on its discipline, training,
and morale but also on its supply chain.
Alexander the Great based his strategies and campaigns on his
army’s unique capabilities and these were made possible by
effective supply chain management.
In the spirit of the saying, “amateurs talk strategy and professionals
talk logistics,”
Alexander was a master of supply chain management and he could
not have succeeded otherwise.
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
3
Supply Chain Management; Chapter 7
Same old same old-Supply Chain
The practice of supply chain management is guided by some
basic underlying concepts that have not changed much over
the centuries.
Several hundred years ago, Napoleon made the remark,
“An army marches on its stomach.
Napoleon was a master strategist and a skilful general
and this remark shows that he clearly understood the
importance of what we would now call an efficient
supply chain. Unless the soldiers are fed, the army cannot
move.
4
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Supply Chain
A supply chain represents all the stages at which value is
added in producing and delivering a product or service from
suppliers (and their suppliers) to customers (and their
customers).
supply chain is a term that describes how organizations
(suppliers, manufacturers, distributors, and customers) are linked
together
Supply Chain Management has an important role to play in
moving goods more quickly to their destination.
Supply Chain Management is a total system approach to
managing the entire flow of information, materials, and
services from raw-material suppliers through factories and
warehouses to the end customer.
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
5
Supply Chain Management; Chapter 7
A Typical Supply Chain
Manufacturing Supply Chain
Mfg, storage, distributing, Retailer, and Customer
Service Supply Chain
Storage, Service and Customer
Supply Chain Flow
Good and services flow clockwise
Cash flows counter-clockwise
6
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
A farm to market supply chain
A farm to market supply chain shows key suppliers at each stage
7
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Value Chain
Supply chains are sometimes called value chains.
This means that value is added as goods and services progress
through chain.
Value Chain Components
Supply
o This starts at the begining of the chain and ends with the
internal operations of the organization.
Demand
o It starts at the point where the organization’s output is delivered
to its immediate customer and ends with the final customer in
the chain.
o The demand chain is the sales and distribution portion of the
value chain.
8
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
The goal of the Supply Chain Management
Determining the appropriate level of outsourcing
Managing procurement
Managing Suppliers
Managing customer relationships
Being able to quickly identify problems and respond to them
9
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
The Five Major
Supply Chain Drivers
Inventory
Production
Information
Trasportation
Location
10
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Trends in Supply Chain Management
Measuring supply chain ROI
This enables manager to incorporate economics into outsourcing and other
decisions, giving them a rational basis for managing their supply chains.
Greening the supply chain
This generating interest for variety of reasons including corporate
responsibility, regulations and public pressure i.e. Reducing pollution and
choosing green suppliers.
Reevaluating outsourcing
This is a second chance looking at outsourcing, especially global suppliers. i.e
lower labor costs, converting fixed costs to variable costs, freeing up capital
to devote to other needs etc...
11
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Trends in Supply Chain Management
Integrating IT
This produces real time data that can enhance strategic planning and help
business to control costs, measure quality and productivity, respond quickly
to problems and improve supply chain operations...
Managing risks
This develops strategies to manage risks. i.e. risk avoidance, risk reduction,
risk transfer etc...
Adopting lean principles
This improves the performance of their supply chains. i.e. It can easily
eliminate traditional supply chain. In other words, eliminate non value added
processes, improving product flow by using pull system...
12
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
The effect of Global Supply Chain
Global Logistics
It was so easy to deal with supply chain management in the past.
Good and services were used to flow from developed countries
to under-developed countries. Flow of raw-materials was other
way around.
Difficulties in Global Logistics
Claim 50% shares in a firm’s partnership
An increase in labor wages
New opportunities in India, China and Russia
Some trade agreement organizations make international trade
easier; such as NAFTA or EU
13
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Global Supply Chain
Make use of outsourcing
Pursue opportunities beyond their domestic market
Products should be design globally
Low labor and material cost
Some services may be outsourced to the countries such as
China and India...
Well and young educated people
Language and cultural differences
Technological improvement
14
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Global Supply Chain
Outsourcing is defined as the act of moving a firm’s internal
activities and decision responsibility to outside providers.
Reasons to Outsorcing
Organizationally-driven
Improvement-driven
Financially-driven
Revenue-driven
Cost-driven
Employee-driven
15
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Global Supply Chain:Supply Network
16
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
The Wal-Mart supply Chain
Supply Chain Management; Chapter 7
To succeed in the competitive
markets that make up today’s
economy, companies must
learn to align their supply
chains with the demands of
the markets they serve.
Supply chain performance is
now a distinct competitive
advantage for companies
who excel in this area.
One of the largest companies in North America is a testament to the power of effective
supply chain management. Wal-Mart has grown steadily over the last 20 years and
much, if not most, of its success is directly related to its evolving capabilities to
continually improve its supply chain.
17
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Measuring Supply-Chain Performance
One of the most commonly used measures in all of operations
management is “Inventory Turnover”
Cost of goods sold
Inventory turnover
Average aggregate inventory value
In situations where distribution inventory is dominant, “Weeks
of Supply” is preferred and measures how many weeks’ worth
of inventory is in the system at a particular time
Average aggregate inventory value
52 weeks
Weeks of supply
Cost of goods sold
18
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Example of Measuring Supply-Chain
Performance
Suppose a company’s new annual report claims their costs of
goods sold for the year is $160 million and their total
average inventory (production materials + work-in-process)
is worth $35 million. This company normally has an
inventory turn ratio of 10. What is this year’s Inventory
Turnover ratio? What does it mean?
19
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Example of Measuring Supply-Chain
Performance-Answer
Inventory turnover
Cost of goods sold
Average aggregate inventory value
= $160/$35
= 4.57
Since the company’s normal inventory turnover ration is 10,
a drop to 4.57 means that the inventory is not turning over as
quickly as it had in the past. Without knowing the industry
average of turns for this company it is not possible to
comment on how they are competitively doing in the
industry, but they now have more inventory relative to their
cost of goods sold than before.
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
20
Supply Chain Management; Chapter 7
Ethics and Supply Chain
Bribing government or company officials
Ignoring health, safety, and environment standards
Violating basic rights of workers
Mislabeling country of origin
Selling goods abroad that are banned at home.
21
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Strategic Responsibilities and Supply Chain
Supply Chain strategy alignment
How is outsorcing employed
Network configuration
Location of supplier, production facilities, distrubution center
Information Technology
Integrating system, monitoring inventory sytem, tracking of shipments
Product and services
New product design and service selection
Capacity planning
Long term needs for the capacity are assessed
22
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Strategic responsibilities and Supply Chain
Strategic partnerships
Choices are made carefully
Distribution strategy
Use centralized or decentralized distribution
Deciding to use own facilities and equipment or not
Uncertainty and risk reduction
Potential source of risk should be identified or acceptable
23
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Creating an effective Supply Chain
Strategic sourcing
is a term that plays an important role for an effective SC
Analysing the procurement process to lower costs by reducing
waste and non value added activities, increasing profits, reduce
risks, and improve supplier performance.
Trust
Information velocity
Supply Chain visibility
Event management (unplanned activities such as delayed shipment)
Performance metrics (Fill rate: % demand on stock, late deliveries,
inventory turnover response time etc...)
24
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Purchasing Interfaces- Functional Areas
Accounting
Operations
Purchasing
Design and engineering
Receiving
Supplier (vendor)
Excluded from the exam topics
25
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Purchasing Cycle
Excluded from the exam topics
Purchasing Cycle: Series of steps that begin with a request for purchase and
end with notification of shipment received in satisfactory condition.
Supplier
Requisition
Purchasing Cycle
Monitor orders
Order with a vendor
Receiving orders
26
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Purchasing Cycle
Purchasing Cycle: Series of steps that begin with a request for purchase
and end with notification of shipment received in satisfactory condition.
Requisition
A description of the item
The quantity and quality
Desired delivery dates
Supplier
They should have the capability of supplying the desired goods
Order with a vendor
Large and expensive one-time purchase of equipment
A vendor need to be used for small purchase
Excluded from the exam topics
27
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Purchasing Cycle
Purchasing Cycle: Series of steps that begin with a request for purchase
and end with notification of shipment received in satisfactory condition.
Monitor orders
They follow up on orders, especially larger orders with lengthy lead
time.
Receiving orders
It must notify purchasing, accounting, and the operating unit that
requested the goods.
Excluded from the exam topics
28
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Purchasing Strategies
Plans to help achieve company mission
Affect long-term competitive position
Strategic options
Many suppliers
Few suppliers
Keiretsu network
Vertical integration
Virtual company
Plan
© 1995 Corel Corp.
29
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Supply-Chain Strategies
Negotiate with many suppliers; play one supplier against
another
Develop long-term “partnering” arrangements with a
few suppliers who will work with you to satisfy the end
customer
Keiretsu - have your suppliers become part of a company
coalition.
Vertically integrate; buy the actual supplier
Create a virtual company that uses suppliers on an asneeded basis.
30
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Many Suppliers Strategy
Many sources per item
Adversarial relationship
Short-term
Little openness
High prices
large lots
Delivery to receiving dock
© 1995 Corel Corp.
Excluded from the exam topics
31
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Few Suppliers Strategy
One or few sources per item
Partnership (JIT)
Long-term, stable
On-site audits & visits
Exclusive contracts
Low prices (large orders)
Frequent, small lots
Delivery to point of use
© 1995
Corel
Corp.
Excluded from the exam topics
32
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Vertical Integration Strategy
Vertical integration is a strategy
and a control mechanism.
In the form of Vertical
integration, the companies in the
same supply chain merge under
the joint management.
Horizontal integration is a
strategy where one company
buys its rival company.
Raw Material
(Suppliers)
Backward
Integration
Current
Transformation
Forward
Integration
Finished Goods
(Customers)
33
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Forms of Vertical Integration
Iron Ore
Silicon
Steel
Automobiles
Farming
Raw Material
(Suppliers)
Flour Milling
Backward
Integration
Current
Transformation
Integrated
Circuits
Forward
Integration
Distribution
Circuit Boards
System
Dealers
Computers
Watches
Calculators
Baked Goods
Finished Goods
(Customers)
34
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Logistics
Logistics is the part of a supply chain involved with the
forward and reverse flow of goods, services, cash and
information.
Logistics is the movement of goods through the supply
chain.
Logistics is the art and science of obtaining, producing, and
distributing material and product in the proper place and in
proper quantities”
35
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Logistics Management
Logistics Management includes management of inbound
and
outbound
transportation,
material
handling,
warehousing, inventory, distribution and reverse logistics.
First time, the word of Logistics was used for military
purposes in 1905. Military staffs and personnels were
transported from one point to another.
36
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Logistics Functions
People prefer to use the Logistics Functions or the concept
of Logistics becomes popular because of;
An increase in transportation and distance costs
An increase in production
An increase in use of JIT and Lean system
An increase in type of products
An increase in use of technology
An increase in use of recycling materials
An increase in number of international companies
37
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Logistics Organization
Purchasing System
Production System
Distribution System
Examples for logistics companies
Craft Inc. :
o Sales of volume is 10 billion per annum for food staffs.
Bayer AG:
o Sales of volume is 25 billion per annum for food staffs...
3000 distribution points... Logistics budget is 5 billion dollar
per annum...
Excluded from the exam topics
38
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Logistics Organization
Examples for logistics companies
Canon Inc.:
o It is the 100th biggest company about photograph machines.
FedEx:
o Sales of volume is 12 billion per annum for delivery staffs...
3 billion parcels distributed... Number of customers is 2
million..
United Parcel Service:
o Sales of volume is 22 billion per annum for delivery
staffs... 3.1 billion packets distributed to the point...
Number of transportation vehicles is 2 million..
Excluded from the exam topics
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
39
Supply Chain Management; Chapter 7
Related issues in Logistics
How to best transport goods
– Modes of transportation
• Truck, ship, rail pipelines
– Warehouses
• Consolidation
• Cross Docking
• Hub-and-Spoke systems
Facility Location
Excluded from the exam topics
40
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Related issues in Logistics
Facility Location
•
•
•
•
•
•
•
Proximity to Customers
Business Climate
Total Costs
Infrastructure
Quality of Labor
Suppliers
Other Facilities
41
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Related issues in Logistics
Facility Location
•
•
•
•
•
•
•
Free Trade Zones
Political Risk
Government Barriers
Trading Blocs
Environmental Regulation
Host Community
Competitive Advantage
Excluded from the exam topics
42
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
How to calculate Facility Location-The centroid method
The centroid method is used for locating single facilities
that considers existing facilities, the distances between
them, and the volumes of goods to be shipped between
them
This methodology involves formulas used to compute the
coordinates of the two-dimensional point that meets the
distance and volume criteria stated in the formula.
43
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
How to calculate Facility Location-The centroid method
Cx =
d V
V
ix
i
i
Cy =
d V
V
iy
i
i
Where:
Cx = X coordinate of centroid
Cy = Y coordinate of centroid
dix = X coordinate of the ith location
diy = Y coordinate of the ith location
Vi = volume of goods moved to or from ith location
44
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
How to calculate Facility Location-The centroid method
Example 1a
Several automobile showrooms are located according to
the following grid which represents coordinate locations
for each showroom
Question: What is the best location for a new Z-Mobile
warehouse/temporary storage facility considering only
distances and quantities sold per month?
Y
Q
(790,900)
D
(250,580)
A
(100,200)
(0,0)
MGMT 405, POM, 2014/15. Lec Notes
X
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
45
Supply Chain Management; Chapter 7
How to calculate Facility Location-The centroid method
Example-1a
To begin, you must identify the
existing facilities on a twodimensional plane or grid and
determine their coordinates.
Y
Q
(790,900)
D
(250,580)
A
(100,200)
(0,0)
X
You must also have the
volume information on the
business activity at the
existing facilities.
46
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
How to calculate Facility Location-The centroid method
Solution
You then compute the new coordinates using the formulas:
Cx =
100(1250) + 250(1900) + 790(2300)
2,417,000
=
= 443.49
1250 + 1900 + 2300
5,450
Cy =
200(1250) + 580(1900) + 900(2300)
3,422,000
=
= 627.89
1250 + 1900 + 2300
5,450
47
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
How to calculate Facility Location-The centroid method
Solution
You then take the coordinates and place them on the map:
Y
Q
New
location
of facility
Z about
(443,627)
(790,900)
D
Z
(250,580)
A
(100,200)
(0,0)
X
48
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Calculate Facility Location-Induvidual volume/ distance
d (V)Induvid ual distance/v olume = (X - Cx) 2 (Y - Cy) 2
Where:
Cx = X coordinate of computed location facility
Cy = Y coordinate of computed location facility
dx = X coordinate distance/volume
dy = Y coordinate distance/volume
49
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Calculate Facility Location-The centroid method
d (V)Total distance/v olume = d (v) t
where
d (v) = distance/volume to town or city
t = total annual distance /volume
50
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Calculate Facility Location-The centroid method
Example 1b: Based on the information below:
(1b/1) calculate the distance for each showroom.
(1b/2) calculate the total volume for the new location.
Y
Q
(790,900)
D
(250,580)
A
(100,200)
(0,0)
MGMT 405, POM, 2014/15. Lec Notes
X
Showroom
No of cars sold
A
1250
D
1900
Q
2300
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Calculate Facility Location-The centroid method
Example 1b: Based on the information below:
(1b/1) Individual distance for each showroom.
dA=SQRT((100-443.49)^2+(200-627.89)^2)=548.70
dD=SQRT((250-443.49)^2+(580-627.89)^2)=199.32
dQ==SQRT((790-443.49)^2+(900-627.89)^2)=440.58
(1b/2) calculate the total volume for new location.
d(v)=2077944 cars sold...
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Facility Location
Example 2
The
Clayton County Rescue Squad and
Ambulance service which serve five rural town as
in the following table:
Town
Abbeville
Benton
Clayton
Dunnig
Eden
Coordinates
y
x
20
20
35
10
9
25
15
32
8
10
Annual Trips
75
105
135
60
90
53
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Facility Location
Example 2
The Clayton County Rescue Squad and Ambulance
service which serve five rural town try to find out the
best possible garage or facility location among the
towns.
(a) Determine facility location for the system
(b) Calculate individual distance for each town
(c) Compute the total distance for the new locations
that minimizes the total miles from the towns.
(d) Show the figures calculated on a graph
54
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
How to calculate Facility Location-The centroid method
Solution (a) for example 2
You then compute the new coordinates using the formulas:
Cx =
20(75) + 10(105) + 25(135) 32(60) 10(90)
= 18.80
75 + 105 + 135 60 90
20(75) + 35(105) + 9(135) 15(60) 8(90)
CY =
= 16.69
75 + 105 + 135 60 90
55
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
How to calculate Facility Location
Example 2- b/c
d (V)Induvid ual distance/v olume = (X - Cx) 2 (Y - Cy) 2
d (V) total distance/volume = d (v) t
dA=sqroot[(20-18.80)2+(20-16.69)2]=3.52
dB=20.31
dC=9.87
dD=13.30
dE=12.36
D(v)=3.52(75)+....+12.36(90)=5642.20 total distance.
56
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Facility Location for example 2- d
Supply Chain Management; Chapter 7
Rescue Squad Facility Location
57
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Facility Location
Example 3
We have 4 suppliers to transport goods to the Lahma
company and the other information given in the following
table:
City
Izmir
Istanbul
Ankara
Bursa
Coordinates
y
x
200
200
500
100
600
250
300
500
Annual load
65
120
90
75
58
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Facility Location
Example 3
4 suppliers transport goods to the Lahma company
where they try to find out the best possible facility
location among the cities.
(a) Determine facility location for the system
(b) Calculate individual distance for each city
(c) Compute the total distance for the new locations
that minimizes the total miles from the cities.
(d) Show the figures calculated on a graph
59
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Facility Location
Example 3-a
Location centers:
200(65) + 100(120) + 250(90) 500(75)
= 242.85
65 + 120 + 90 60 75
200(65) + 500(120) + 600(90) 300(75)
Cy =
= 427.14
65 + 120 + 90 60 75
Cx =
60
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Facility Location
Example 3- b/c
d (V)Induvid ual distance/v olume = (X - Cx) 2 (Y - Cy) 2
d (V) total distance/volume = d (v) t
dL=sqroot[(200-242.85)2+(200-427.14.)2]=231.14
diz
231.14
dis
491.34
dan
173.00
dbu
286.86
D(v)=231.14(65)+...+286.86(75)=111071.97 total distance.
61
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Facility Location
Example 3- d, e
Location
700
600
600
500
500
427.14
400
300
300
200
200
100
0
0
100
200
300
400
500
600
62
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
How to calculate Incremental holding cost
Example-3
Incremental holding cost= H(d)/365
H=Annual earning potential of shipped item, d= difference
between shipping alternatives.
Determine shipping alternative, one day or three days when
holding cost is $1000 with one day shipping cost is $40 and
three day shipping cost is
a) $35
b) $30
Excluded from the final exam topics
63
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
How to calculate Incremental holding cost
Solution
Incremental holding cost= H(d)/365
H=Annual earning potential of shipped item, d= difference
between shipping alternatives.
H=$1000 per year
with one day shipping, time saving will be 2 days
IHC=1000(2)/365=$ 5.48
a) $40-$35=$5 cost saving is less than incremental cost $5.48
b) $40- $30=$10 cost saving exceeds incremental cost $5.48
Excluded from the final exam topics
64
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.
Supply Chain Management; Chapter 7
Thanks
65
MGMT 405, POM, 2014/15. Lec Notes
© Stevenson, McGraw Hill, 2010- Prof. Dr. Sami Fethi, EMU, All Right Reserved.