supply chain Flashcards
what is the scor model
supply chain operations reference
- plan
-source
-make
-deliver
4 variables of demand forecasting
-supply
-demand
-product characteristics
-competitive environment
what are the main forecasting methods?
straight line
moving average
weighted moving avg
straight line forecasting
assumes constant growth in the future
moving average (time series)
smoothing technique looking at past data to estimate future values
weighted moving average (time series)
assigns a predetermined weight to data points, greater weighting to more recent
what are the quantitative methods for demand forecasting?
expoential smoothing
regressn
simulation
what is exponential smoothing
smooth out time series data instead of weighting equally, weights decrease exponentially over time
what is regression forecasting
quantitative
based on the assumption that underlying factors influence what is being forecasted
what is simulation forecasting
quantitative
can be very sophistcated often used to compare different forecasting methods
what are the qualitative forecasting methods
executive judgement
sales force composite
market research/study
delphi method
executive judgment
expert opinions from different departments is averaged
sales force composite
forecast based on the opinions of sales people
market research
directly collecting information from consumers about purchases
delphi method
panels of experts individually questioned not as a group, effective fr long ranfe forecasting
cycle inentory
needed to meet demand between normally scheduled orderss
afety stock
necessary to compensate for demand uncertainty and order lead times
seasonal
Produced and stockpiled in anticipation of future demand