HBM Operations CMD
-
Upload
knoxbusiness -
Category
Education
-
view
1.125 -
download
0
Transcript of HBM Operations CMD
1
Operations Management
Higher/Int 2 Business Management
2009 - 2010
2
OperationsA memory aid!
Think of what happens in an operating theatre
3
Operating SystemAn Operating System is a
configuration of resources to provide a product or service
Raw Materials Machinery Workers
4
Operating SystemWhat could we make?
Paper, Scissors, People
5
Operating SystemWe need to be organisedWe need to develop procedures
6
Operations ManagementOperations Management is a
transforming process turning inputs (resources) into outputs (goods and services)
The key here is efficient management of resources
7
Operations ManagementA Transformation Process
PROCESSINPUT OUTPUT
InformationFinancePeople
MaterialsMachinery
GoodsServices
Customer/Employee Satisfaction
8
THE PRODUCTION PROCESS FOR BREAD
THE PRODUCTION PROCESS FOR BREAD
INPUT Raw Materials (LAND) eg flour, yeast, water
Human Resources (LABOUR) the workers and managers
Man-made Resources (CAPITAL) eg ovens and baking trays
PROCESS The process for the manufacturing of bread will include measuring, sifting, mixing, kneading the bread, heating and cooling.
OUTPUT
The finished product, loaves of bread, distributed to the consumers
9
10
11
12
13
14
15
16
Some Product Thoughts Deluxe Double Chocolate Chip Cookies
Freddie’s Fish
Collette’s Computer Manufacture
Krazy Kazz’s Cars
17
Input IssuesBest PriceReliability of SuppliersDelivery TimesQualityQuantities AvailableStorage Space (Raw Materials)
18
Process Issues Average Demand per Week Production Capacity Available Working Procedures (eg H&S) Storage Space (Finished Product) Efficiency/Productivity Payment Systems Quality Stock Control
19
Output IssuesPackaging Individual/Groups of
ItemsNature/Size of ContainersStorage Space (Before Dispatch)Organising Customer OrdersTransportation (Storage/Customers)Customer Requirements
20
A Complicated FunctionOperations Management is a complex
area which can be further broken down into the following key areas:
A) planningB) productionC) purchasingD) storage and stock controlE) distribution/logistics
21
PlanningTo be most efficient production
should take place at a constant level
22
Planning In reality this is not possible:
Consumer Demand Staff Shortages Machinery Breakdowns Maintenance
23
Production Systems How will the manufacturer produce goods?
Start with the factory layout - where will each part of production take place? Who will complete?
The splitting up of production into a number of different jobs is called the division of labour
A successful system will need a flow of stocks from one job to another to make sure that there are no delays due to shortages or bottlenecks
24
What Production System?The Nature of the Product
Washing Machines Bread House Atlas Farming New Bridge
25
What Production System? Market Size
Where the firm is producing large numbers of standard products the production can be simplified eg Irn Bru
Customised products for individual clients need a great deal of client input eg customised software or stained glass windows
26
What Production System?Resources
Materials People Buildings Machinery/Tools Finance Time
27
What Production System? Business Development
Small firms, small productions, production system limited eg Wallace & Gromit Cheese
As firms grow they can increase their capacity and produce a greater variety of goods
28
What Production System?Labour Intensive Systems
A labour intensive system is one which relies more heavily on its workforce than machinery
‘Tattie Holidays’ Strawberry Picking Clothing Promotion
29
What Production System?Labour Intensive Systems
Labour is cheaper than machinery Skill in craftsmanship required Can’t use machinery - working
environment Ability required to think/reason/use
initiative/make decisions Flexibility in production
30
What Production System? Capital Intensive Systems
A Capital Intensive System is most common when:
Supply of labour is limited Production benefits from machine efficiency
and consistency Production is routine and repetitive
31
Automation CAM (Computer Aided Manufacture) CAD (Computer Aided Design) Robotics
Allows firms to design, develop and produce products with high quality
Ability to make a wider range of similar products to appeal to different segments of the market
32
Automation Advantages
Complicated tasks completed quickly High accuracy Less waste Quality consistent
Disadvantages Machinery is more likely to break down Narrow range of tasks
33
Sony WalkmanAt present, Sony has at least 12 different versions of the Sony Walkman on the market. Each has the same basic features, all of which are made on the same production line
Using technology in the design and production of the Walkman, Sony can add different features to each model to appeal to different consumers
Prices vary as more advanced features are added
34
Activities
Wallace & Gromit - Stinking Bishop
Research and produce a short report on the production of the cheese Stinking Bishop and the Wallace & Gromit effect
35
Activities
Sony Walkman Research
The Sony Walkman has evolved over the years resulting in products unconceivable 20 years ago
Create a short report detailing the current range of ‘Walkmans’, their features and what market they would appeal to
36
PurchasingThis varies according to the size/nature
of the organisation:
Services - very little purchasing, ‘production’ depends on staff skills
Manufacturing - may have a purchasing department
37
Purchasing DepartmentTeam of specialists with the aim to:
Purchase the best quality materials At the lowest cost With the correct quantities At the correct time
Purchasing Mix
38
The Importance of PurchasingObjectives:
Quantity and quality that the firm requires Purchase at the most competitive prices Ensure speedy delivery Arrange delivery to a suitable point eg site
or gate Choose reliable suppliers and maintain
good relations with them
39
Stages in Purchasing Process
Requisition
Negotiation
PlaceOrder
ChaseDeliveryClear
Invoice
40
The Purchasing MixDecisions on quantity to purchase:
Stock of raw materials available Time between orders placed Amount of raw materials to meet output
demand Availability and cost of storage space
41
The Purchasing MixChoice of Supplier:
Price: lowest? discounts? credit terms? Quantity: acceptable? continuity of
supply? Availability: sources? delivery systems?
confidence? Location: transport? insurance?
42
McDonalds Purchasing McDonalds do not have contracts with any
of their suppliers
They can change suppliers without notice
Size of McDonalds makes them an attractive customer
Must meet very strict quality standards
43
Centralised PurchasingOne department carries out purchasing
for the whole businessEconomies of Scale (lower
rates/market power)Quality and Standard materials setDistribution and Warehousing better
planned
44
Decentralised PurchasingReduces the cost and burden of
administration If each store manager (in retail) takes
responsibility - needs of the store better catered for
Managers get additional responsibility - increasing motivation
45
Nature of Stocks (1)Raw materials and components –
saves delays in production (from stores)
Work in Progress – partially completed
Finished Goods – changes in demand (from stock holdings)
46
Nature of Stocks (2)A stock take will be performed at least
annually to record the amount/value of stock. This is a physical count.
Stock is listed as a current asset on the balance sheet.
47
Costs of Holding Stock Stock improves business performance but:
too much means capital is unproductive too little means that there could be delays in
production
Opportunity cost Spoilage costs Administration/Finance costs Out-of-Stock costs
48
Stock Levels Decisions on how much stock to hold depend on:
Demand – cover growth in sales and unexpected demand
Stockpile – eg Christmas (toys) Costs of Stock holding – if expensive less held
eg furniture retailers Working capital – if limited can’t purchase more
stock Type of stock – perishable eg bread/cakes, out-
of-date eg new models Lead time – time to place and receive new order External factors – fear of future shortages
49
Stock Control Issuing stock Monitoring Stock levels Quantities of Stock held
Economic Stock Level Minimum Stock Level Re-order level Re-order Quantity
(see student notes)
50
Stock Control Diagram
51
Computerised Stock Control Most organisations use computer stock control systems Computer automatically orders more stock at the
reorder level May use barcodes (30 yrs old in 2007) or RFID tags Physical checks to ensure discrepancies accounted for:
Theft Natural wastage Deterioration
Management make decisions with regard to popular products and adjust stock levels as necessary (local tastes)
Information useful when dealing with large orders – judge delivery date possible
52
Just-in-Time (JIT) Limits stock holding to almost zero Close relationship between manufacturer and
supplier (need reliability) Stock brought to factory only when needed In a JIT system stock holding costs paid for
by supplier: Capital tied up in stock Storage costs Stock loss/wastage
Nothing produced unless there are customers ready to buy
53
Just-in-Time (JIT) - ExampleJust-in-Time was first developed in Japan by Toyota, the car manufacturer. In order to reduce the costs involved in holding stocks of materials and work-in-progress, Toyota devised a card ordering system known as Kanban.
Toyota devised a policy that no components would be made, or supplies ordered, unless the instruction appeared on a Kanban.
For example, if a worker fitted six steering wheels, a Kanban card would be sent to the production team to order another six steering wheels. These would arrive just-in-time before the worker ran out of steering wheels.
54
Just-in-Time (JIT) - ExampleIn order for this to be successful. Toyota had to ensure that its suppliers understood the system and were able to supply on demand. When it opened its UK plant it trained its suppliers in operations and quality procedures to make sure that they delivered the exact product at the right time.
In some cases the suppliers had their factories next door to the Toyota plant to ensure that they could operate with the JIT production system. To secure long term contracts with Toyota, suppliers had to deliver, at short notice, small quantities of high-quality goods.
The suppliers had to be completely reliable and would have to pay the costs of lost production if they could not deliver, or if they delivered faulty materials.
55
Storage of Stock (Centralised) Advantages
Security Specialist Staff
Supervise Agreed Procedures Cheaper Efficient Distribution
Disadvantages
Time Wasting Cost of Specialist
Staff Cost of Dedicated
Storage Area
56
Storage of Stock (Decentralised) Advantages
Stock at Hand Order as Required
(Depends on Production)
Fast Turnover of Small Quantities of Stock
Disadvantages
Less Control Theft Loss
Space in Production Area Required
57
Storage of Stock (Kanban) Advantages
Exactly Meets Production Requirements
Savings on Purchase/Storage
Production Delays Prevented
Close Links with Suppliers
Disadvantages
Dependency on Suppliers
Suppliers must be Willing to Participate
58
Methods of ProductionYou need to know:
Job Production Batch Production Flow Production
and advantages and disadvantages of each
59
Job Production
Simpleorganisation
‘One-offs’Customer Needs
Specifications Changed
WorkersMotivated
Production Costs High
Time-ConsumingProduction
VersatileEquipment
Each job is completed in full before another is started.
INDIVIDUALITY
60
Job ProductionA single product is custom-made to a
customer’s own specifications
Examples: Boat Building Bridge Building Wedding Cakes/Dresses
61
Job Production
Advantages
“One-off” orders accommodated
High price Specifications can
be changed Motivated
workforce
Disadvantages
High labour costs Wide variety of
equipment needed Each job will require
individual design (time)
Lead times lengthy
62
Batch Production
Flexibility
Stock of Partly Finished Goods
Scope for Specialisation
Delays:Change/Clean
Equipment
Small Batch =High Cost
Co-ordinationRequired
All stages in production completed at the same time – possibly different ingredients.
EACH IN BATCH SAMEVARY FROM BATCH TO BATCH
63
Batch ProductionThe production of a group of similar
products. No item in a group goes to the next stage until all are ready.
Examples: Tinned Foods Bakery Houses in an Estate
64
Batch ProductionAdvantages
Flexible production Partly finished goods
can be stockpiled and completed later
Reduced need for highly skilled staff
Machinery can be standardised
Disadvantages
Higher costs per unit (small batches)
Needs careful planning
High stock levels Less motivated staff Delays in
changing/cleaning equipment
65
Flow Production
Economies of Scale
Reduced Stockholding
eg JIT
Automation
Start-up Costs High
Standardised – All Customers? Work is
Repetitive
Use of a production line – component parts added at each stage.
STANDARDISATION
Quality Systems Built In
System Failure?
66
Flow Production Production items move continuously from
one operation to the next. Products are produced to a standard specification.
Examples: Cars Computers White goods eg washing machines
67
Flow ProductionAdvantages
Economies of Scale Automated production
lines save time and money – 24/7
Large quantities produced
Reduced stockholding eg JIT
Quality systems can be built in/standard products
Disadvantages
Large investement required
Mass consumption required
If one part of the system fails – shutdown
Lack of worker motivation - repetitive
68
Choice of Production Method Nature of the Product - eg bridge, sewers (job); arable
farming (batch)
Size of Market - eg fast moving consumer goods such as soap/canned drinks have a large market (flow)
Stage of Business Development - eg when starting up (job or batch) may then move to flow as sales increase
Technology - new materials/machinery eg computers and robotics in car manufacturing - also different models on same production line
69
Labour vs Capital Intensive Nature of the Product - eg everyday high
demand mass produced, large quantities of machinery (newspapers)
Relative Prices - if labour costs are rising might use more capital
Size of Firm - as firm grows scale of production increases employing more capital
70
Marginal Output Productivity rises as each additional worker is
added to a production process
The marginal output is the increase in production by adding the extra worker
As more workers are added eventually marginal output will fall as workers can no longer specialise this is called the Law of Diminishing Returns
71
What is Quality? Physical appearance (style) Reliability and Durability (lifespan) Special features (eg play MP3 CDs?) Suitability (what the customer requires) Availability of spare parts Ease of repair (service centres) After care service (prompt delivery?) Image of manufacturer (brand name?) Reputation of the product
72
Quality Control Historic concept assuming a degree of
waste - 25% Quality checks take place at the end of the
manufacturing process Often goods need destroyed or re-worked Psychological implications - assumes
failure by denying the assumption that things can be done right
Friday Car Syndrome
73
Quality Assurance Assumes that wastage caused by Quality
Control can be prevented Quality checked at every stage of the
process instead of just at the end Reduces waste to levels as low as 5% In a highly competitive market:
Increased profits Reduced costs Increased customer satisfaction
74
Quality Standards (1) Quality is often defined as conformity with a
standard: Fit for purpose, Appearance, Safety, Availability,
Value for money, Ease of use, After sales, Reputation, Customer service
British Standards Institute on Quality Assurance: “an all embracing concept involving all stages and
all people in the production process”
75
Quality Standards (2) BSI Kitemark - eg safety goggles, independently
tested to a specific standard BS5750 / ISO9000 - mark of quality worldwide
CE mark an EU award - eg armbands, won’t deflate and need supervision warning
ABTA Wool Mark - pure new wool, Wool Marketing Board IIP - Investors in People - provide training and
development of staff Warranties - manufacturer will undertake work
arising out of a defect ‘free of charge’
76
UK - Toilet TestOperations folder on server …
77
Japanese - Toilet TestOperations folder on server …
78
ISO 9000 Can help business to:
Examine and improve systems, methods and procedures to lower costs
Motivate staff to gets things right first time Assure that orders are delivered on time Highlight product or design problems - identifying
improvements Record and investigate all quality failure and customer
complaints Give a clear signal to customer - “we take quality
seriously” Produce a documented system for recording and
satisfying the training needs of staff in terms of quality
79
ISO 9001a set of procedures that cover all key processes in the business;
monitoring processes to ensure they are effective;
keeping adequate records;
checking output for defects, with appropriate and corrective action where necessary;
regularly reviewing individual processes and the quality system itself for effectiveness; and
facilitating continual improvement
80
Total Quality Management (1) Culture shift:
‘we know what quality is’ ‘You tell us what you want and that will be our
definition of quality’ TQM assumes quality to your client or
customer, even if that is the next worker in the assembly line - your work should be of the highest standard and quality
Costly to establish TQM Wastage can be reduced to around 3%
81
Total Quality Management (2) TQM requires:
A whole-company focus on quality A commitment from each individual in the
company Consultation with every employee at every level
of the organisation in setting standards A focus on teamwork Viewing TQM as a long term concept The creation of a plan for quality Training for employees Constant checking and review of performance Constant checking for improvement
82
Total Quality Management (3) Four (4) key elements need managed:
The definition of quality at each stage of production - lies with customer
The commitment of all - mission statement, handbook, responsibilities, procedures, quality audits, quality circles, benchmarking etc
System in which quality can be assured - checking, monitoring, documentation, appraisals, targets etc
A measure of the ability to meet quality requirements - quantitatively or qualitatively
(see student notes for more detail)
83
Benchmarking A process of Quality Assurance Compare your performance with the market
leaders (efficient producers) Customers Industrialists Business Analysts Journalists
Could be resistance to obtaining information
May continue to benchmark when you become the market leader
84
Quality Circles Groups of employees who meet regularly to
identify, discuss and resolve problems in the production process Shop floor workers know production problems
best Workers will be motivated by involvement in
problem solving process
Team will then present ideas and solutions to management
First established in Japanese car industry
85
Payment Systems (1)Used to:
Motivate Reward; and Control Labour
A variety of Payment Systems have been designed to achieve this.
86
Payment Systems (2)Time-Rate Payment SystemsOvertimePiece-Rate Payment SystemsPiece rate plus Fixed ElementCommission PaymentsFringe BenefitsBonuses
87
Payment Systems (3) Incentives to ProfessionalsContract EmploymentProfit-Sharing Schemes
88
Payment Systems (4)Employers’ objectives:
Motivation Cost Prestige
Employees’ objectives: Purchasing Power Recognition and Fairness How Payments Are Made Up
89
Distribution and DeliveryWarehouse Planning:
Design and Layout – ground level, readily accessible and stock rotated
Mechanical Handling – specialist equipment (inc pallets)
Transportation – owned or hired, owning is expensive but complete control, careful route planning (see BBC Box)
90
Transportation
Road – 80% of goods transported, specialist vehicles, door-to-door delivery
Rail – shortage of lorry drivers, restrictions on driving time, road congestion, haulage to final destination
Air – Prestwick highest freight in Scotland, expensive, quick delivery
Sea – Forth Estuary, petrol/minerals/coal, lengthy delivery times
91
Distribution Mix Image of ProductThe Product itselfManufacturer’s Distribution CapabilityReliability of Other OrganisationsLegal RestrictionsFinance Available
92
SchedulingProduction Plans will show where the
Factors of Production are needed at any point in time.
The aim being to eliminate idle time
May use a Gantt Chart
93
Efficiency of Production A work study shows how tasks are currently
done with a view to improvement:
Select the task to be analyses Record how it is currently done Examine the information collected Develop a better method of doing the task Install the new method Maintain the new method
Method Study
94
Efficiency of Production A work study shows how tasks are currently
done with a view to improvement:
Establishing how long tasks should take so that standard times can be identified
Actual times then judged on the standard
Work Measurement
95
CongratulationsYou have completed
Operations
in
Higher/Int 2 Business Management