Transcript Slide 1

Slides for Chapter 10
Strategic Capacity
Honda on July 18 announced two new plants. In Argentina, Honda will spend
$100 million on a new compact-car plant. The facility will be located in
Buenos Aires and initially have a capacity of around 30,000 units. In
Thailand, Honda will add a second plant that, from the second half of 2008,
will double production to 240,000 units. Meanwhile, in India, Honda will
triple auto production, to 150,000 units, by 2009. And in China, where Honda
will produce 530,000 cars this year, the company announced it and partner
Guangzhou Auto have established a new research and development venture to
launch a new vehicle in 2010.
Even in Japan, where the auto market is shrinking, Honda has new production
facilities in the pipeline. Among them, a new auto plant in Yorii, outside
Tokyo, will be Honda's most advanced plant anywhere when it opens in 2010.
Honda says the plant will be used as a testing ground for new technologies
that will eventually filter through to overseas plants.
Source: “Honda Hits the Gas on Capacity”
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Business Week 19 July 2007
Strategic Capacity
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Guangqi Honda Automobile, a Honda automobile production and sales joint venture in
China, has announced plans to expand its annual production capacity from the current
360,000 units to 480,000 units in China.
Guangqi Honda's current overall production capacity of 360,000 units includes 240,000 units
at the HuangPu plant and 120,000 units at the ZengCheng plant. The company has decided to
double the annual capacity of the ZengCheng plant to 240,000 units by the later half of 2011.
To expand its production capacity, the ZengCheng plant will add new equipment. In addition,
Guangqi Honda aims to enhance the plant's standing as an environmentally-responsible plant
through various improvements including further advancement of the complete wastewater
recycling system, which was introduced to this plant in 2006.
The total investment for this expansion is expected to be approximately RMB930 million.
Guangqi Honda's total employment is expected to be increased from the current 6,800 to
8,000 associates.
Combining Guangqi Honda's capacity expansion and the addition of Dongfeng Honda's
second plant, scheduled to begin operations in the later half of 2012 with annual production
capacity of 60,000 units, Honda's overall annual automobile production capacity in China will
be expanded from the current 650,000 units to 830,000 units by the later half of 2012.
Source: “Honda to expand automobile production capacity in
China” Published by Datamonitor on 26 May 2010
Strategic Capacity
AUTOS
Carmakers are expanding at home, where nimble, high-tech plants offer more
flexibility. In the midst of a dramatic earnings slump, Toyota, Nissan, and
Honda are ramping up production fast. Not in the U.S., their most profitable
market, but back in Japan, where domestic auto sales just hit a 25-year low.
Every major Japanese automaker is building plants at home or adding capacity
to existing ones. A Toyota subsidiary is constructing a 120,000-car plant in
Miyagi, north of Tokyo. It's Toyota's first such plant in Japan since 1993.
Nissan, which not so long ago was slashing production in the country, is
expanding capacity by 22% at its Kyushu factory. Honda is spending $1.5
billion on a new factory and engine plant in Saitama, just outside Tokyo.
"The time has come for our Japan operations to once again take the
initiative," Honda President Takeo Fukui told reporters on May 21.
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Business Week; 9 June 2008 p64
Strategic Capacity (cont)
Volkswagen (VOWG.DE) has selected Chattanooga as the site
for a new U.S. assembly plant ….. For Volkswagen, the
Tennessee plant is the cornerstone of an audacious plan to
build up to 1 million in U.S. sales by 2018 [the figure covers
both the VW and Audi brands]. The Chattanooga operation
will have an initial capacity of 150,000 vehicles and will
include body production, a paint shop, and assembly
operations, Volkswagen said. Most plants are built to
expand to between 200,000 to 300,000.
Volkswagen Waltzes Into Tennessee. Business Week 16th July 2008
Strategic Capacity
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The global consumer electronics market (including OEM and retail sales) was valued at
approximately $681bn in 2009, a decrease of 1.7% over 2008. Growing at a CAGR of 8.4% during
2005–10, Business Insights anticipates that the size of the global consumer electronics market will
remain flat at $681bn in 2010. This flat growth owes to the weakness in the global economy.
The fastest-growing products of 2010 will be LED and OLED displays, Ethernet-enabled TVs and
receivers, eBook readers, and 3D TVs. Cloud computing and virtualization emerging as the new
growth engines.
Against the backdrop of the global recession, cost competitiveness, technological innovations and
emerging markets are the key drivers of the industry's transformational growth. The emergence of
South Korean giants - Samsung and LG - as market leaders is commoditizing the industry.
The fall-out of this fierce competition is that companies such as Sony are struggling to retain a
foothold in the industry, while other Japanese rivals are diversifying into new growth areas such as
environment, energy and infrastructure in order to survive. On the other end of the spectrum there
is Apple, which is able to earn huge profits by leveraging on its disruptive innovations, reinforcing
the necessity of innovation.
Even in the core hardware industry, technology companies are shifting to services and software in
response to the declining margins. Several small M&A deals are facilitating this transition to
emerging technologies such as smartphones and specialized software such as business analytics.
Furthermore, the onset of the global recession is challenging the traditional business model of
selling premium priced products to developed markets. The trend now is to scale down many of the
features of standard models and sell no-frills products at affordable prices to the low and middle
income segments of emerging markets.
Source: “The Top 10 Consumer Electronics Manufacturers”
Business Insights 21 September 2010
Strategic Capacity:
Global Computer Hardware
• The global computer hardware market had total revenue of
$193.2 billion in 2009, representing a compound annual
growth rate (CAGR) of 5.4% for the period spanning 20052009. In comparison, the
• European and Asia-Pacific markets grew with CAGRs of 1.8%
and 8.7% respectively, over the same period, to reach
respective values of $64.3 billion and $44.1 billion in 2009.
• Computers sales proved the most lucrative for the global
computer hardware market in 2009, with total revenues of
$104.9 billion, equivalent to 54.3% of the market's overall
value. In comparison, sales of peripherals and devices
generated revenues of $59.4 billion in 2009, equating to 30.7%
of the market's aggregate revenues.
Source: Datamonitor June 2010
Strategic Capacity (cont)
What the Chinese want now are more bottles of Mountain Dew. At
least that is the hope of PepsiCo, which says it plans to spend $150
million to expand bottling capacity by a third. That will mean 100
million more cases of Pepsi, 7 Up, and the caffeine-charged
Mountain Dew. While the company's annual sales in China have
grown at around 10 percent in recent years, it still has only about
half the penetration of rival Coca-Cola. PepsiCo executives say they
are determined to increase their beverage presence in China, despite
the threat of severe acute respiratory syndrome (SARS).
Business Week, 6th Sept. 2003
Strategic Capacity (cont)
The article reports on Boeing, in light of the Paris air show. The
popularity of its new 787 twin-aisle airliner has helped Boeing
open up a big lead over Airbus in orders this year, with 245 planes
sold vs. 145. Less noticed is that Boeing…… has maneuvered
Airbus into a strategic cul-de-sac that could handicap the European
consortium for years. Boeing's rise represents the latest phase of an
epic dispute between the two companies about what airline
customers want. Boeing is betting passengers will opt for more
frequent trips in smaller planes that fly direct between less-traveled
city pairs like Seattle--Seoul. Both Boeing and Airbus forecast
sales of some 2,600 planes, with capacity between 300 and 450
passengers, over the next 20 years
Fortune 13th June 2005
The Importance of Understanding Capacity – a simple example
When we hire somebody, we have to pay them 52 weeks X 40 hours
=2080 hours
BUT the maximum capacity is vastly different to the actual capacity
We need to deduct:
20 X 8 hours (vacation):
160
5 X 8 hours (sick allowance)
40
8 X 8 hours (public holidays)
64
----264
So we have 2080 less 264 = 1816
THEN we must add the International Labor Organization’s
estimate of 70% utilisation so 1816 X 70% = 1271
The Importance of Understanding Capacity – a simple example (cont.)
Recall: When we hire somebody, we have to pay them 52 weeks X
40 hours =2080 hours
BUT we only have 1271 hours to recover this. We need to
understand the multiplier here:
2080 (maximum)
-----1271 (actual) gives us 1.64
If we hire somebody for 150,000 Dollars per annum we are paying
them 150,000/2080 = 72.12 Dollars per hour
BUT we need to CHARGE OUT at 72.12 X 1.64 = 118.28 per
hour as a BASIC charge (NB: there are no overtime, pensions and
other costs listed here!)
Output Capacity Measures
Organization
Measure Of Capacity
Automobile Plant
Law Firm
Oil Refinery
Electric Company
Paper Producer
Number Of Autos/Hour
Number Of Cases Handled/Week
Barrels Of Oil/Day
Megawatts Of Electricity/Hour
Tons Of Paper/Week
Input Measures
Organization
Measure Of Capacity
Jet Engine Plant
Airline
Hotel
Grocery Store
Warehouse
Tennis Club
Department Store
Machine Hours/Month; Labour Hours/Month
Number Of Seats/Flight
Number Of Rooms, Number Of Beds
Number Of Checkout Lines
Cubic Feet Of Space
Number Of Courts
Number Of Square Feet
Service Capacity:
“DON'T LET HOTELS 'WALK' ON YOU!”
"You're never going to believe this," a top executive from a major hotel chain told me,
"but I just got walked from our hotel to this dump near Central Park." It seems even hotel
executives aren't immune from the recent surge of travelers showing up at hotels and
being told there's no room for them. (Hotel folks call it "getting walked.") It happens
because, like airlines, hotels tend to overbook their rooms when demand is high for fear
of not achieving full occupancy. Sometimes big-city hotels can overbook by as much as
20% (the average is about 10%). That means even with a confirmed reservation, the frontdesk clerk will send you to another hotel at the first one's expense--a headache for a busy
traveler. So how do you avoid this? Besides checking in early and being a member of the
hotel's loyalty program, ask for a written or e-mailed confirmation when you book and
bring it with you. Then call to confirm two or three days before you arrive, get the agent's
name, and ask to have your call noted in the reservation. And ask for a better room while
you're at it--you have nothing to lose.
Source: Fortune 7th August 2006, p102
The Curse of Bottlenecks
The
bottleneck
– a BIG
PROBLEM
2 streams or lanes of
operations – not a
problem
4 streams or lanes of
operations – not a
problem
The Curse of Bottlenecks
Flow of Operations – people, information, inventory etc
10
8
12
6
8
An Operations System like this is almost DESIGNED (!) to
be a problem – and is very common in both manufacturing
and services!!
Three Capacity Management Strategies
Three strategies that are used across organisations to manage
fluctuations in demand and supply are:
•Providing the same level of supply, no matter what demand
level. This strategy may be called demand smoothing in service
operations, or level production in manufacturing operations.
•Exactly matching the level of supply to the level of demand.
This strategy is usually called chase demand.
•Adjusting demand to better match supply. This strategy is called
demand management.
Level Capacity Strategies.
One strategy that organisations use to match demand and supply is
to produce and store outputs in advance of demand. These
strategies rely on building inventory. Other types of operations -such as service operations -- have only limited recourse to
inventory-building strategies. In many service organisations,
mismatches between supply and demand will result in queues.
A level capacity strategy
Units of output
Capacity
Demand
Chase Strategies.
Organisations that use chase strategies adjust their activity
levels to reflect the fluctuations in demand
A chase capacity strategy
Units of output
Demand
Capacity
Time
Demand Management Strategies. Organisations that use
demand management try to change demand to smooth high
and low periods.
Units of output
Demand
Adjusted
demand
Hierarchy Of Company Plans In Operations
Business Planning (years)
Type
of
Plans
Yearly Sales Forecasts
Master Operations Schedule (MPS) - monthly
Daily Scheduling
LOADING
TIME
Scheduling Rules
"GOOD IDEAS ...."
* Schedule First Those Jobs With The Shortest First Operation Or
* Schedule First Those Jobs With The Shortest Last Operation Or
* Schedule Jobs According To Their Total Work Content Or
* Schedule Jobs According To Their Date Of Receipt Or
* Prioritise Jobs By Customer
Shortest First Operation
1
2
Job
3
If the RED line is the
shortest FIRST
operation, what would
be the sequence of
jobs??
4
5
Time
Shortest LAST Operation
1
Job
2
If the BLUE line is
the shortest LAST
operation, what would
be the sequence of
jobs??
3
4
5
Time
Total Work Content
1
Job
2
3
On the basis of the
Total Work Content,
what would you
chosse as the
sequence of jobs??
WHY??
4
5
Time
Scheduling Rules
More "GOOD IDEAS ...."
•First come, first served (FCFS)- the first job or customer to arrive at a workstation will
be the next one processed. This is a fair rule when people or jobs arrive randomly and
have similar requirements. All customers are treated equally in the sense that priorities are
assigned in order of arrival, but no allowance is made for the fact that some jobs or
customers are more important or need to be finished sooner than others
•Earliest due date (EDD) - the job or customer with the earliest due date will be processed
next. This minimises the total lateness of all jobs or customers being processed. This rule
highlights the importance of due dates, and therefore may be more in line with customer
needs. On the other hand, where service is unreliable or consistently late customers often
learn to "play the system" and submit jobs with artificially early due dates.
•Shortest processing time (SPT)- the job or customer that will take the least time to
process is the next processed. This minimises the total waiting time, but long jobs or more
urgent jobs may not be processed quickly. This rule maximises the throughput measured
as number of jobs processed, and is therefore commonly used by operations whose goal is
to maximise cash flow, since these flows come earlier in the process and therefore are
discounted less.
Scheduling Rules
Even More "GOOD IDEAS ...."
•Last arrived, first processed (LAFP) - the opposite of first come, first served. This is
seldom an efficient rule , because it means that jobs currently in the system will have to wait
even longer to be processed. However, overworked administrators often apply this rule
since the job that has arrived latest is usually associated with a living, breathing customer!
•Least slack time - the job with the least time between the time it will take to process the job
and the due date (slack or float time) will be processed next.
•Start the job with the shortest first processing time – This is managed by breaking up the
total work content into the operations that are required. The operations manager then
chooses the job with the shortest first operation. The rationale for this is to ‘get up and
running’ with jobs and this ploy may be used where firms have invested recently in new
technology. The problem with this approach is that, like others we have discussed, this rule
pays no attention to customer requirements. The other problem is that although firms may
wish to be ‘busy’ and to utilise technology this may simply encourage work in process and
not result in finished goods. This in turn may mean that the firm cannot invoice and so cash
may be drained.
Scheduling Rules
Even More "GOOD IDEAS ...."
• Longest processing time (LPT)- this is the opposite of shortest processing time.
This rule may be applied when the operation is not concerned with early cash
flows, but can be associated with interim (stage) payments for partly completed
work.
• Start the job with the longest last operation - This is quite difficult to execute
but some companies do this. The reason for this is that the last thing that a firm
wants is to progress jobs and then have them held up at the last process. What
this rule tries to do is to avoid bottlenecks occurring at the last stage (which is
the most expensive stage of the overall job because all other costs have been
accrued by this stage).
• Critical ratio (CR) - is a more sophisticated version of least slack time, since it
computes the ratio of time remaining to the work remaining, so that jobs or
customers with varying processing times can be compared more easily.
Scheduling
Operations
A good idea is to schedule operations based upon dependencies –
and try to ‘decouple’ operations as much as possible.
An example:
Activity
A
B
C
D
E
Dependency?
A
B
A, B, C, D
Listing Activities by
Dependency
A
C
E
B
Task
A
B
C
D
E
F
G
H
I
G
F
H
D
Description
Machine Engine Parts
Machine Transmission Parts
Assemble Engine
Assemble Transmission
Assemble transmission and engine into one unit
Mount unit in car frame
Make front-wheel drive connection to transmission
Connect fuel lines
Make electrical connections
I
Listing Activities by
Dependency
8
8
10
C
10
A
E
B
D
8
7
F
2 Questions:
1. What is the earliest time that Activity E can begin?
2. What is the shortest overall process time?
G
7
H 6
I
4
10
A
Listing Activities by
Dependency
8
8
10
C
E
B
D
8
7
The Critical Path
F
G
7
H 6
I
4
Johnson's Algorithm
If The Shortest Time For A Job Is On The First Facility,
Schedule The Job As Early As
Possible.
If It Is On The Second Facility,
Schedule It As Late As Possible.
Delete That Job And Repeat The Procedure
Key Points
Capacity management is based on
understanding the specific
characteristics of volume, variety,
variation, variability, predictability
and perishability.
Key Points
Early operations management
approaches to capacity were based on
order sequencing, scheduling activities,
and process control; whilst materials
management was based around
economic order quantities, standardised
components, and inventory control.
Key Points
There have been major transitions from craft to
mass through to the current era of Mass
Customization, Agility, Lean and Strategic
Manufacturing. Each of these has represented a
major, world-wide innovation, with implications
for strategy formulation and profoundly
changing the way people work. In each case,
the new paradigm has made the previous one
largely, but not totally, redundant.
Key Points
There are some ‘good rules of
scheduling’ that can be used as a
guide.
Key Points
It is always vital to remember that there is
no such thing as a perfect solution when
scheduling and the process has to be based
on sound business reasons and not driven
purely by software calculations.