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93 Cards in this Set

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  • Back
What is operations and supply management
- the design, operation (internal), and improvement of the systems that create and deliver the firm’s primary products and services
- concerned with the management of the entire system that produces a good or delivers a service
Operations
Manufacturing and service process used to transform resources into products desired by customers (internal factors within the organization)
Supply
Processes that move information and material up and down the supply chain (external function moving supplies/products to facilities, ect.)
Supply Chain Processes
Planning: Determine how anticipated demand will be met with available resources
Sourcing:involoves the selection of suppliers that will deliver the goods and services needed to create the firms product.
Making:Where the major product is produced or the service provided
Delivering: logistics process, carriers picked to move the product.
Returning:involved the processes for receiving worn-out, defective, and excess products back from the customers and support for customers who have problems with delivered products.
Differences between goods and services
1. Service is an intangible process that cant be weighed or measured while a good in a tangible output
2. service requires some degree of interaction with the customer
3. services are inderently heterogeneous (they vary day to day as a function of the attitudes of the customer and the servers)
4. services as a process are perishable and time dependent
5. specifications of a service are defined and evaluated as a package of features.
Page 12 exhibit1.4
Look in book
pure goods (food products, chemicals, ect)->Core goods (appliances, automobiles ext)->Core services (hotels, airlines ect)_>pure services (teaching, medical advice, ect)
Servitization
a company building service activities into its product offerings for its current users
efficiency
doing something at the lowest possible cost
Effectiveness
doing the right things to create the most value for the company
value
quality/price
careers
-major challenges is the field:
1. coordinating the relationship between mutually supportive but separate organizations
2. Optimizing global supplier, production, and distribution networks
3. managing customer touch points
4. raising senior management awareness of operations as significant competitive weapons
5. sustainability/triple bottom line:
sustainability: ability to maintain balance in a system.
Productivity Ratio
Productivity=outputs/inputs
Triple Bottom Line
Evaluating the firm against social (fair and beneficial business practices toward labor, community and the region), economic (compensate shareholders who provide capital) and environmental criteria.
Competitive Dimensions
-Cost or price
-Quality--design quality=set of features the product or service contains and process quality=reliability of the product or service
-delivery speed
-delivery reliability
-coping with changes in demand
-flexibility and new-product introduction speed
-Support it
Tradeoffs
An operation cant excel simultaneously on ALL competitive dimensions
Straddling
occurs when a company seeks to match the benefits of a successful position while maintaining its existing position
Order Winner
criteron that differentiated the products or services of one firm from those of another
Order Qualifier
screening criteria that permits a firms products to even be considered as possible candidates for purchase.
Capacity utilization Rate
Capacity Used/best operating level
Capacity time Durations
Long range:greater than one year
intermediate range:monthly or quarterly plans for the next 6-18 months
short range: less that one month (daily or weekly scheduling process; making adjustments to eliminate the variance between planned and actual output)
Strategic capactiy Planning
provide an approach for determining the overall capacity level of capital-intensive resources that best support the companys long range competitive strategy
-if capacity is excessive, company may have to reduce process to stimulate demand
Focused factory
a production facility works best when it focuses on a fairly limited set of production objectives
plant within a plant
PWP-separate sub-organizations, equipment and process policies ect, for different products (even under the same roof)
Capacity flexibility
having the ability to rapidly increase or decrease production levels or to shift production capacity quickly from one product or service to another
-flexible plants, processes, workers
Decision Tree
schemative model of the sequence of steps in a problem and the conditions and consequences of each step
Planning service capacity
-Service capacity is more time and location dependent
-Time:capacity must be available to produce a service when it is needed
-Location:service capacity must be located near the customers
-Volatility of Demand:volatility of demand is high for service
1. services cant be stored
2. customers interact directly with the production system
3. serice demand is directly affected by consumer behavior
Inventory Calculation
inventory=throughput rate X flow time
Work in process inventory calculation
WIP inventory=throughput rate X Flow time
Total Inventory Calculation
Total inventory= WIP=raw material inventory
Flow Time Calculation
flow time=inventory/throughput
Production Processes:Lead Time
The time needed to respond to a customers order
Production Processes: Make to Stock
firms that serve customers from finished goods inventory
Production Processes:Assemble to Order
Combine a number or preassembled modules to meet a customers specifications
Production Processes:Make to Order
Make the customers product from raw materials, parts, and components
Production Processes:Engineer to order
works with the custoemr to design the product, and then make it from purchased materials, parts and and components
Inventory Turn
COGS/Average inventory Value
Days of Supply
The inverse of inventory turn scaled to days (Ex: if a firm turns inventory 6 times a year, the dats of supply=1/6 times per year or apprx every 61 days)
Little's law
says there is a long-term relationship between the inventory, throughput, and flowtime of a production system in a steady state
Throughput
long term average rate that items are flowing through the process
Flow Time
Time that it takes a unit to flow through the process from beginning to end
How production processes are organized:Project layout
the product remains in a fozed location (high degree of task ordering)
How production processes are organized:workcenter
job shop, where similar equipment of functions are grouped together
How production processes are organized:manufacturing cell
dedicated area where products that are similar in processing requirements are produced (group parts into families)
How production processes are organized:Assembly Line
where work processes are arranged according to the progressive steps bu which the product is made
How production processes are organized:Continuous Process
similar to an assembly line;production follows a predetermined sequence of steps, but the flow is continuous
How production processes are organized:product-process matrix
the first dimension relates to the volume of a particular product or group of standardized
Splitting tasks (if we need to increase capacity in a manufacturing setting, what do we do>)
-Split the task
-share the task
-use parallel workstations
-use a more skilled worker
-work overtime
-redesign (last resort)
Utilization Calculations (p 116-118)
??
Customer Contact
The physical presence of the customer in the system
-service systems with a high degree of contact are more difficult to control and more difficult to rationalize than those with low degree of contact
Service system design matric (p. 102 exhibit 5.1)
See book:
Degree of customer server contact:
-buffered core (no contact
-permeable system (some contact)
-reactive system (much contact)

Sales opportunity vs production efficiency
Virtual Service:Pure virtual customer contact
companies enable customers to interact with one another in an open environment
Virtual Service:Mixed virtual and actual customer contact
where customer to interact one with another in a server-moderated environment such as product discussion groups.
Service Blueprint
Flowchart to emphasize the importance of process design distinguishing between high and low customer contact
Line of visibility
high customer contact aspects of the service (the parts of the process that the customer sees) vs. those activies that the customer does not see
Poka-Yoke
procedures that block the inevitable mistake from becoming a service defect; avoid mistakes
managing cues
-segment the customers
-train your servers to be friendly
-inform you customers of what to expect
-try to divert the customers attention when waiting
-encourage customers to come during slack periods
Line structures: Single channel, single phase
simplest type of waiting line structure ex: one person barbershop
line structures: single channel, multiphase
series of services performed in a fairly uniform sequence;car wash--multiple services--washing, rinsing drying ect
line structures:Multi channel, multi phase
two or more services are performed in sequence
ex:admission of patients into a hospital (specific sequence of steps usually followed with several servers so more than one patients at a time can be processed
Line structures: Mixed
Multiple to single:merge
Alternative path structures:two structures that differ in direction
DPMO:defects per million opportunities
DPMO=(# of defects/(#of opporunities for error X #of unites)) X 1,000,000
Six Sigma
Philosophy and methods companies use to eliminate defects in their products and processes
Total Quality Management
managing the entire organization so that it excels on all dimensions of products and services that are important to the customer
-two goals (1) careful design of the product or service and (2) consistency product the design
Malcom Baldrige Award (1987)
To help companies review and structure their quality programs
The Quality Gurus Compared (exhibit 6.1 pg 135)
-Look at book:
Definition of quality:
-Crosby:conformance to requirements
-Deming-predictable defree of uniformity and dependability at low cost and suited to the market
-juran-fitness for use (satisfies customers needs)
Design Quality
the inherent value of the product in the marketplace
conformance quality
the degree to which the product or service design specs are met
quality at the source:
the person who does the work takes responsbility for making sure that his or her output meets specs
dimensions of quality
performance, features, reliabiltiy, serviceability, asethics, perceived quality
Costs of Quality
costs that are the difference between what can be expected from excellent performance and the current costs that exist
appraisal costs
costs of the inspection, testing aand other tasks to ensure that the product of process is acceptible
prevention costs
the sum of all the costs to precent defects
internal failure costs
costs for defects incurred within the system
external failure costs
costs for defect that pass through the system (ie customer warranty replacements, product repair, complaints)
ISO 9000
based on 8 quality management principles; international reference for quality management requirements in a B2B dealing
ISO 14000
primarily concerned with environmental managemen; three pronged approach for dealing with environmental challenges
6 sigma methodology
DMAIC:
define
measure
analyze
improve
control (dumb managers always ignore customers)
-focus is understanding and achieving what the customer wants (key to profitability)
variation
as variation is reduced, quality is improved
-it is impossible to have 0 variability (therefore there are design limit\s about the target that the process must fall into)
Statistical Process control
involves testing a random sample of output from a process to determine whether the process in producing items within a preselected range
-sampling attributes
-sampling variables
p calculation
p=total #defects from ALL samples/(number of samples X Sample size)
Standard deviation (s)
=square root of p(1-p)/n
**Do example 6.3
UCL-upper process control limit
p+(3 X S)
LCL:lower control limit
p-(3 X S)
EVM
Step 1: Calculate the Budgeted Cost of Work Scheduled (value or cost of the project that is expected given the project at time “X”)
Step 2: Calculate the Budgeted Cost of Work Performed (actual value of the project to date at point “X”)
Step 3: Obtain the Actual Cost (from the accounting records for the project)
Step 4: Calculate key performance measures for the project
- schedule variance
- schedule performance index
- cost variance
- cost performance index
* EXAMPLE 7.1
Types of development projects
(pg 181 exhibit 7.1)
Look in book
project management
planning, directing and controlling resources to meet the technical cost and time constraints of the project
Structuring Projects:Pure project
"skunkworks" a self containted team works full time on the project
advantages: project manager has full authority over the project, team members report to one boss, lines of communication are shortened, team pride, motivation and commitment are high
disadvantages: duplication of resources, organizational goals and policies are ignored, organization falls behind in its knowledge of new technology, worry about life-after-project
Structuring Projects:Fuctional Projects
Project within a functional division
advantages;team members can work on several projects, technical expertise maintained even if individuals leave, functional area is home eve after the project is completed, synergistic solutions to a projects technical problems
disadvantages:asepects of the project that arent directly related to the functional area are shortchanged, weak team motivation, needs of the clients are secondary and are responded to slowly
Structuring Projects:Matrix Project
Attempts to blend properties of functional and pure project sturctures-each project utilizes people from different functional areas;project manger decides what tasks and when they will be performed;functional manager controls which people and technologies are used.
-advantages:communication between functional divisions enhanved project manager held responsible for project completion duplication of resources in minimized, team members have a functional home after project completion, policies of parent prganization are followed
Disadvantages:there are two bosses, doomed to failure unless project manager has strong negotiating skills
Work breakdown structure
defines the heiarchy of project tasks, subtasks, and work packages;breaks down project into manageable pieces.
Gantt Chart
"bar Chart" shows the amount of time involved and the sequence in which activities can be performed
EVM: Earned value management
technique for measuring project progress in an objective manner; combine measurements of scope, cost, and schedule of project; measures relative success of a project at a point in time
-need a project plan that identigies the activities to be done
-need a valuation of each activity work (planned value)
-need the predefined costing rulers (metrics)
-EXAMPLE 7.1
Critical path method
1. identify each activity to be done in the project and estimate how long it will take to complete each activity
2. determine the required sequence of activities and construct a network reflecting the precedence relationships
3. determine the critical path (form the longest chain in terms of their time to complete)
4. determine the early start/finish and late start/finish schedule
*Look at graphs and descriptions in book for more clarification