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Strategic Criteria
Focuses on the financial implication or impact of a requirement
Risk reduction
Other Needs
access to new technology, access to new markets, assurance of supply in tight markets
Traditional Criteria
Quality
Quantity
Delivery
Price
Service
7 categories of need
resale
Raw and Semi-Processed Materials
Parts, Components and Packaging
Maintenance repair and operating (MRO) Small Value Purchases (SVP)
capital
services
Every organization acquires a variety of services
other:
Anything not covered by the above categories falls into this last one. Major requirements could be energy and water
This category would also include unusual and infrequent requirements, probably better dealt with on an ad hoc or project basis.
Resale (Trading Goods)
A category of needs comprised of retailers and wholesalers who purchase goods to sell to others
Raw and Semi-Processed Materials
Most users of materials are converters, such as factories, and this category includes commodities, agricultural and industrial.
Parts, Components and Packaging
Assemblers use parts and components produced by their suppliers to create a finished product
Parts and components may be standard or special depending on the decision of the designer of the finished product.
Maintenance repair and operating (MRO) Small Value Purchases (SVP)
Every organization has MRO requirements and SVP’s. The availability of MRO suppliers is critical to maintain continued uninterrupted operation of the office, factory, facility, etc
Because many MRO requirements are relatively small in dollar value, SVP’s are also included in this category.
For SVP’s assuring availability at minimum acquisition cost is a challenge.
capital
Any requirement that accountants classify as capital, and, therefore, an investment, becomes a capital item.
Equipment, IT, real estate and construction are included in this category.
Capital items can be depreciated, are often bought under a separate budgetary allocation and may require special financing arrangements
Total Cost of Ownership (TCO) Analysis
A source selection tool for capital goods where initial price may only represent 30% to 50% of the lifetime cost
Opportunity to Affect Value
A concept stating the ability to add value is highest during need recognition and description and lowest at payment
Quality
The ability of a supplier to provide goods and services in conformance with specifications
Item or service performs per original requirements
Suitability
Ability of material to meet its intended function
Often referred to as fitness for use
Reliability
The mathematical probability that a product will function as intended for a stipulated period of time
Useful to recognize varying reliabilities of components and products acquired
Eight Dimensions of Quality service
Performance
The primary function of the product or service
Features
The bells and whistles.
Reliability
The probability of failure within a specified time period.
Durability
The life expectancy.
Conformance
The meeting of specifications.
Serviceability
The maintainability and ease of fixing.
Aesthetics
The look, smell, feel, and sound.
Perceived quality
The image in the eyes of the customer
Appraisal Costs
(cost of good quality)
costs associated with the evaluation of purchased materials, processes, products, and services to ensure that they conform to specifications
They include costs for:
Testing, evaluating, and inspecting the quality of incoming materials, process setups, and products, against agreed upon specifications.
Quality assessment and approval of suppliers.
performing audits to confirm that the quality system is operating properly
Prevention Costs
are related to the design, implementation, and maintenance of the quality management system
They are planned, and experienced before actual products or materials are acquired or produced
They include costs for:
Establishment of specifications for incoming materials, processes, products, and services
Creation of quality plans
Development, preparation, and maintenance of quality training
Creation and maintenance of the quality system
Internal Failure Costs
Costs occurring when a product fails standards and is identified before delivery to the customer
occur when the product or service does not meet the designed quality standards, and are identified before the product or service is delivered to the customer.
They include costs for:
Defective product or material that cannot be used, sold, or repaired, and the costs associated with correction of these defects.
Unnecessary work or inventory resulting from errors.
Activities required to establish the root causes of product or service failures
Lean history
Starting in the 1910’s, Henry Ford’s mass production line was a first breakthrough by using continuous assembly systems that made parts find their way into finished products
In the 1940’s, Taichii Ohno and Shigeo Shingo created the Toyota Production System (TPS), which incorporated Ford’s production system and other techniques to form the basis of it
The term was first coined by John Krafcik in 1988 and the definition was expanded in the 1990 book, The Machine that Changed the World
Total Quality Management (TQM)
A philosophy focused on satisfying customer needs by integrating quality throughout all activities
Quality must be integrated throughout the organization’s activities
There must be employee commitment to continuous improvement
The goal of customer satisfaction, and the systematic and continuous research process related to customer satisfaction, drives this
Suppliers are partners in the process
Lean
goal is the elimination of waste and the minimization of the amount of all resources used in the operation of a company
it is philosophy / culture
is NOT a tool box of methods, ideas, or methodologies
is standard in many industries
regularly results in:
Large cost reductions
Improved quality
Increased customer service
Six Sigma
focuses on improving the quality of process outputs by identifying and removing the causes of defects (errors) and minimizing variability in manufacturing and business processes
goal is for <3.4 Defects Per Million Opportunities (DPMO)
structured and data-driven approach to drive a near-perfect quality goal, i.e., “Zero Defects”
DMAIC
(The core Six Sigma improvement tool)
Define:
define the problem
What is the customers’ expectation of the process?
measure:
map out current process
What is the frequency of defects?
analyze
analyze the cause of problem
Why, when and where do defects occur?
improve:
implment & improve situation
How can we fix the process?
control
maintain the solution
How can we make the process stay fixed?
ISO 9000
An international consensus on good quality management practices regarding process control
ISO 14000
Quality standards focusing specifically on environmental management issues
3 internal Inventory stock Levels held by companies to:
(3 levels = strategic, safety, cycle stock)
Meet customer demand
Buffer against uncertainty in demand and/or supply
Decouple supply from demand
Decouple dependencies in the supply chain
pipeline Inventory
inventory in transit.
Inventory held / owned by suppliers, or by wholesalers, distributors, retailers, and customers
(considered external inventory)
Economic Order Quantity (EOQ)
A model determining optimal order quantity by minimizing the sum of annual carrying and ordering costs
is a fixed-order quantity model
The model seeks to determine an optimal order quantity
Order Costs (Setup Costs)
Costs incurred each time an order is placed
ex: Order preparation costs, Order transportation costs, Order receipt processing costs, Material handling costs
Carrying Costs
Costs incurred for holding inventory
Cost of capital
specified by senior management
Taxes
on inventory held in warehouses
insurance
based on estimated risk or loss over time and facility characteristics
Obsolescence
deterioration of product during storage, and shelf-life
Storage
facility expense related to product holding rather than product handling
ABC System
Classifies inventory by importance
steps:
Determine annual usage or sales for each item.
Determine % of total usage or sales that each item represents.
Rank items from highest to lowest %.
Classify items into groups:
A: Highest Value
A' items represent 20% of items but 80% of total cost
B: Moderate Value
require closer management since they are relatively more expensive (per unit), require more effort to purchase / make, & may be more prone to obsolescence
C: Least Valuable (lowest priority)
Enterprise Requirements Planning system (ERP)
information system connecting all functional areas and operations of an organization, and in some cases suppliers and customers, via common software infrastructure and database
provides a means for supply chain members to share information so that scarce resources can be fully utilized to meet demand, while minimizing supply chain inventories
Materials Requirement Planning (MRP)
A system designed to get the right materials to the right place at the right time
Creates schedules identifying the specific parts and materials required to produce end items
Determines exact numbers needed
Determines the dates when orders for those materials should be released, based on lead times
Kanban
A 'sign' or 'instruction card' used as a visual signal to trigger inventory replenishment based on consumption
importance of Logistics (Costs)
May account for 40% of total cost and is often over looked for savings
Increasingly more important with Global Sourcing
Not just a cost issue…service levels and reliability are critical
Outsourcing to 3PLs is very common
Firm still needs to manage the design and modeling of the logistics networkGenerally, costs increase as distance, quantity and speed increase
choosing free on board (FOB) Point determines 4 things
Who pays the carrier
When legal title to goods being shipped passes to the buyer
Who is responsible for preparing and pursuing claims with the carrier
Who routes the freight Shipping Terms and responsibilities covered by INCOTERMS (International Commercial Terms)
FOB Destination
seller:
responsible for goods until destination
bears freight costs
counted in sellers inventory unless received by buyer
buyer:
ownership of goods transferred after receiving the goods
records transaction & increase in inventory after goods were received
not responsible for any damages or loss in transit
Fair Price
The lowest price that ensures a continuous supply of the proper quality where and when needed
Direct Costs
Can be specifically and accurately assigned to a given unit of production of a product or service
Most costs are “variable”
Ex: 10 pounds of steel, 30 min of labor on machine
Indirect Costs
incurred in the operation of a production plant or service process, but normally cannot be related directly to any given unit of production of a product or service
Often referred to as “overhead”
Ex: Rent, property taxes, power, machine depreciation
Variable Costs
Costs that vary directly and proportionally with the number of units produced
Fixed Costs
Costs that remain the same regardless of the number of units produced
Sherman Antitrust Act (1890)
Any combination, conspiracy, or collusion with the intent of restricting trade in interstate commerce is illegal
It is illegal for suppliers to collectively engage in price-fixing
Robinson-Patman Act (1936)
Suppliers must sell the same item, in the same quantity, to all customers at the same price
aka “one price law”
Some exceptions: lower price for larger purchase quantities, distressed & obsolete product, meeting the lower price of local competition in a particular geography
Firm-Fixed-Price (FFP)
A contract pricing option where the price set is not subject to change under any circumstances
Ex: The contractor must construct an office building for 1,000,000 USD in six months
Cost-Plus-Fixed-Fee (CPFF)
A contract where the buyer reimburses all reasonable costs plus a specified profit amount
A maximum amount may be specified for the cost
Ex: software development company hired to build a new application for:
fixed fee (for profit) + other costs (e.g. licenses, hardware, time
Cash Discounts
A discount granted by sellers to secure prompt payment
ex: 2% discount w/ payment terms of 10 days
Granted by virtually every seller of industrial goods
Trade Discounts
Granted by a manufacturer to a distributor
Purpose is to grant discount for the cost of doing business to move goods through distributor channel
Special Problems of Equipment Purchasing
Strategic considerations and high cost of failure
Substantial amounts of money for a single purchase
Long life and infrequent purchases
Difficulty estimating the total cost
Technology forecasting
Dedication of time and resources during start-up
Coordination with existing processes and operations
reasons to purchase capital goods
Capacity
Economy in operation and maintenance
Increased productivity
Better quality
Dependability in use
Savings in time or labor costs
Durability
Safety, environmental and emergency protection
Source Selection Criteria for Capital Goods Purchases
(ex: buildings, machinery, equipment, vehicles, and tool)
Total cost of ownership (TCO) analysis
Purchase cost may only represent 30 to 50 percent of TC)
Engineering Service
Presale and post sale service
Design and R&D capabilities and costs
Legal considerations
Patents, health & safety
Disposal at end of useful life
Reasons for Lack of Supply Involvement in Service Acquisition
Complexity of specifying service needs and analyzing potential service provides means that the user has greater expertise than purchasing
The buying of services involves more of a personal relationship between the supplier and user.
The demand for the service is not always easy to forecast
The Four Integrated Stages of Quality Function Deployment
can only be done through strategic alliances with suppliers:
Product planning
to determine design requirements
Parts deployment
to determine parts characteristics
Process planning
to determine manufacturing requirements
Production planning
to determine production requirements
control charts
is a graph used to study how a process changes over time.
Statistical “tests” & visual graphics
Delineate common cause from special cause
Stable vs. unstable
Process breaks
Quantify process data parameters
common cause
(type of variation)
always present to some degree in the process
special cause
outside, non-random problems
ex: machine breakdown
Out of Control: 1 or more points above or below 3-standard deviations from the centerline
Trends: 6 or more points in a row increasing or decreasing
Process Shift: 8 or more points in a row above or below the centerline
The Malcolm Baldrige National Quality Award
Annual award for U.S. organizations in business, health care, education and nonprofit
Recognizes excellence in quality achievement and quality management
quantity and Timing: How much to acquire and when? – Impacted by…
Forecasts
managers must make purchase decisions long before actual requirements are known
Costs
order costs, inventory carrying costs, shortage
Availability
paying higher prices or delivery charge for products or services not available
Price-Volume Relationship
reduced prices for buying larger quantities
Shortages: may cause serious disruptions
Qualitative Forecasting Techniques
based on opinion and intuition.
Generally used when data are limited, unavailable, or not currently relevant.
Examples: new product, new market segment
Forecast depends on skill and experience of forecaster(s) and available information
The five ____models used are:
1. Personal Insight
2. Jury of Executive Opinion
3. Delphi Method
4. Sales Force Estimation
5. Customer Survey
Quantitative Forecasting Techniques
uses mathematical models and historical data to make forecasts
It is generally recommended to use a combination of quantitative and qualitative techniques
Time Series:
based on the assumption that the future is an extension of the past.
Historical data is used to predict future demand
The most frequently used among all the forecasting models.
Cause and Effect
assumes that one or more factors (independent variables) predict future demand
e.g: seasonality in retail markets
obsolete inventory
Stock that is expired, out-of-date or no longer needed
safety stock
also known as “buffer stock,” is inventory that is above and beyond what is actually needed to meet anticipated demand.
A quantity of stock planned to be in inventory to protect against fluctuations in demand or supply.
Companies operating in a make-to-stock environment will generally maintain some amount of this stock whether based on a management decision, or based on a safety stock determination formula.
fixed order quantity system
If the review determines that an order should be placed, then the order for a pre-defined quantity for that item is placed.
Two main variables to calculate:
Reorder Point (ROP)
Order Quantity (Q)
Assumptions:
A constant demand (d) rate
ex: not erratic, seasonal, etc.
Inventory position (IP) is reduced
(i.e., consumed/used) by a rate of (d).
Replenishment order placed when reorder point (ROP) is reached.
When inventory is received, (IP) increases by the order quantity (Q).
(Q) computed using the economic order quantity (EOQ) model.
Lead time (L),
the time between placing an order and receiving delivery of the order, is known and constant.
Inventory position (IP) is reviewed on continual basis
forms of inventory
Raw materials, purchased parts and packaging
Work-in-progress
Finished goods
MRO items
Resale items
functions of inventory
transit or pipeline inventories
Cycle inventories (sell in lots)
Buffer or uncertainty inventories or safety stock
Anticipation or certainty inventories (for well defined future needs, seasonal)
Decoupling inventories (method to create independence)
mode & selector criteria
Required delivery time
Reliability and service quality
Available services
(warehousing, inventory mgmt.)
Type of item being shipped
(hazardous material)
Shipment size
Possibility of damage
Carrier financial situation
Handling of claims
just in time (JIT)
strive to eliminate waste
Waste includes: inefficient set-up procedures, inventories
Focus on all aspects of the production system: human resources, supply, technology, and inventories
is based on the logic that nothing will be produced until it is needed
When a unit is sold, the system pulls a replacement unit from the last position in the system
This process continues throughout the system
is characterized by providing the exact quantity needed at the precise moment it is required —> Same objective as MRP
However, to be able to support __ firms require certain capabilities:
short production lead times
flexible resources (labor, material and equipment)
exacting quality
air (cargo)
fastest but also most expensive
Paired with trucks for door-to-door delivery
Cannot carry extremely heavy or bulky cargo.
Ideally, items with a high cost to weight ratio
Shipments involve very light, high-value goods that need to travel long distances quickly including; jewelry, fine wines, pharmaceuticals, racehorses, etc.
Half of the goods transported by air are carried by freight–only airlines
e.g., FedEx. Other half in passenger planes with luggage
rail
is slow and inflexible but it has the most capability
competes for transportation when distance long
Paired with trucks for door-to-door delivery.
As a result, carriers have begun purchasing motor carriers and can now offer point-to-point pickup and delivery service
Shipments involve building materials, construction equipment, coal, gravel, sand, lumber, etc.
Aging infrastructure and equipment are an issue
truck
(motor freight)
Most flexible mode of transportation
Carries > 80% of U.S. Freight —> (most common)
Carries nearly anything from packaged household goods, to
building materials, to liquid petroleum, etc
water
(marine= inflexible and slow, needed for int’l containers)
Inexpensive
Very slow and inflexible
Includes inland waterways, coastal and intercostal, and deep-sea cargo shipments
Primarily used for heavy, bulky, low value materials like coal, grain, sand, and petroleum.
However, because transport is so cheap almost any item may be shipped by water including: automobiles, produce, containerized cargo, etc
pipeline
Most reliable form & Lowest per unit cost for transportation
Limited variety of commodities
transported in a liquid or gaseous state
petroleum, natural gas, drinking water, gasoline
intermodal transportation
the use of multiple modes of transportation to execute a single transport shipment
sometimes referred to as 6th mode of transportation
growing substantially because it is fairly cost-efficient and cost-effective
the most common combos are:
Rail and Motor Carriers
(i.e., trucks)
Rail and Water Carriers
Roll-on/Roll-off Ships
(for cars, truck, other self-propelled modular transporter)
common carrier
available to anyone at published rates
private carrier
company owned carrier
Contract carriers
for-hire carrier at contractual rates
Exempt carriers
for-hire and exempt from regulation
Originally established for farmers
cost approach
Price is set greater than direct costs, allowing for sufficient contribution to cover indirect costs and overhead, and leaving a margin for profit
Negotiation is a particularly useful tool here
market approach
Prices are set in the marketplace and may not be directly related to cost
If demand is high relative to supply, prices should increase
e.x: commodities, cell phone industry
quick response
the rapid replenishment of a customer's stock by a supplier with direct access to data from the customer's point of sale
Keiretsu relationships
involves companies both upstream and downstream of a manufacturing process, remaining independent but working closely together for mutual benefit
rail & motor carriers (truck)
Offer point-to-point pickup and delivery service known as Trailer-on-Flatcar (TOFC)
rail & water carriers
Offer point-to-point pickup and delivery service known as Container-on-Flatcar (COFC)
competitive bidding
Bidders must be qualified to make the item in question in accordance with the buyer’s specifications and to deliver it by the date required
Bidders must be sufficiently reliable in other respects to warrant serious consideration as suppliers
Bidders must be numerous enough to ensure a truly competitive price
(note: usually at least two suppliers are invited to bid; however, normally three or four are invited)
Bidders must not be more numerous than necessary
(note: number of suppliers to whom inquiries are sent is largely a matter of the buyers’ judgment)
conditions for competitive bidding
There must be at least two, and preferably more, qualified bidders
The suppliers must want the business
a “buyer’s market”
Specifications must be clear
No collusion between bidders
multiple discounts
in some industries and trade, prices quoted on a multiple discount basis – based on a sliding scale
quantity discounts
Applies to particular quantities and vary in proportion to amount purchased
cycle stock
Inventory that a company builds to satisfy its’ immediate demand.
stock depletes gradually as customer orders are received, and is replenished cyclically when supply orders are received.
The amount of stock that a company holds is dependent on actual demand in the immediate time period, supply replenishment lead time and order quantities
strategic stock
Additional inventory beyond cycle and safety stock, generally used for a very specific purpose or future event, and for a defined period of time
Also called anticipation stock, build stock, or seasonal stock
A company may decide to carry strategic stock to:
hedge currency fluctuations take advantage of a price discount protect against a short-term disruptive event in supply
take advantage of a business opportunity
for life cycle changes: seasonal demand, new product launch, transition protection
bin system
inventory system that uses either one or two bins to hold a quantity of the item being inventoried.
It is mainly used for small or low value items.
When the inventory in the first bin has been depleted, an order is placed to refill or replace the inventory.
The second bin is set up to hold enough inventory to cover demand during the replenishment lead time so as to last until the replacement order arrives
mode
refers to the way in which goods are transported
carrier
refers to the company that transports the goods
general freight carriers
A trucking company which handles a wide variety of commodities in standard trailers. Freight is generally palletized.
These can be LTL or FTL carriers. [see next slide for definition]
They carry the majority of goods shipped.
Does not require the use of specialized equipment.
specicalized carriers
A trucking company which handles the movement of cargo that requires specialized equipment for transportation because of the shipment's size, weight and shape.
Transport commodities like liquids, petroleum, household goods, building materials, and other specialized items.
Less-Than-Truckload (LTL)
is the transportation of relatively small freight
i.e., the freight does not require the entire space of a truck.
Advantages:
Can be cost effective
There are more available carrier options.
Ideal for small businesses.
Disadvantages:
Increased risk of theft/damage
Increased shipping times and delays
full truckload (FTL)
is the transport of goods that fill up a full truck, or a partial load shipment occupying an entire truck.
Advantages:
Best way to transport large shipments
Ideal for high risk or delicate freight shipments
Considerably faster than LTL.
Disadvantages: Costs more than LTL