MIDTERM EXAM II Flashcards
vendor
a supplier
wholesaler
purchase goods in large amounts and at discounted prices
dropshipper
a company that takes customer orders
franchise
owns the rights to a company and the name
last mile
between final inventory holding facility and end consumer
planogram
a map of where every product goes on a retail store shelf
vendor managed inventory (VMI)
vendors monitor inventory
scan-based trading
inventory on retail store shelf is owned by supplier
omni-channel retailing
unified shopping experience across platforms
chargebacks
retailer fees for supplier failures
the goal of waiting line management
balancing customer time and company costs
3 parts of a waiting line system
input source, waiting line, service facility
input source
might want service
waiting line
wait for service
service facility
receive service
managerial considerations in a waiting line system
customers, waiting lines, employees, service facilities
queue
line
channel
line availability at each step
phase
a single step in a process
infinite population of customers
high or unlimited customer potential
finite population of customers
limited customer capacity
balking
customers discouraged by long lines
reneging
customers frustration leads to line abandonment
jockeying (line jumping)
customers switch lines for efficiency
arrival rate
lambda; number of customers arriving per unit of time
service rate
mu; number of customers that will be served per unit of time
percentage of time server is busy
rho; service utilization factor
average number of customers in line
n(l)
average amount of time a customer waits in line
t(l)
average number of customers in the system
n(s)
average amount of time a customer spends in the system
t(s)
probability there are “N” customers in the system
P(N)
probability the system is empty
P(0)
multiple server queuing models
supply chain integration
supply chain partners collaboration and coordinated
obstacles to integration
poor communication, unwillingness to share, and lack of trust
push system
inventory is “pushed” toward the consumer in anticipation of consumer demand
push system characteristics
- effective in stable high-demand scenarios
- customers expect immediate availability
- companies leverage quantity discount opportunities
- ideal for standardized, non-customized items
- susceptible to inventory obsolescence
- slow-selling items to high holding costs
- inaccurate forecasts lead to stockout or overstock
pull system
a system that is activated by consumer demand
pull system characteristics
- requires ready access to high raw materials inventory
- capable of producing customizable items
- vulnerable to sudden increases in demand
- inaccurate forecasts can disrupt production planning
costs of miscalculations
postponement
hybrid system blending push-pull elements
bullwhip effect
inventory grows upstream with stability
supply chain goal trade-offs
cost, quality, speed, and flexibility
causes of the bullwhip effect
order batching, forward buying, rationing, short gaming
order batching
infrequent large orders from suppliers