OPERMAN Flashcards
an incorporated in labor demand planning system that matching staffing schedules with anticipated demand
An incorporated in labor demand planning system that matches staffing schedules with anticipated demand
Forecasts
The process of protecting the values of more or more variables into the future.
Forecasting
BASIC IN CONCEPTS OF FORECASTING
a.) Forecasts Planning Horizon
b.) Time Bucket
c.) Date patterns in time series
d.) Forecasts error and accuracy
Forecasts of future demand are needed at all levels of organizational decision-making the planning horizon in the length of which a forecast is based
Forecasts Planning Horizon
Is the unit of measure for the time period used in forecast
Time Bucket
is a set of observations measured at successive points in time or over successive period of time
Data Patterns in time series
All forecasts are subject to error, and understanding the nature and size of errors is important in making good decisions
Forecasts error and accuracy
is based on the assumption that the future will be an extrapolation of the past
Statistical Forecasting
is an average of the most recent “K” observations in a time series.
Simple Moving Average
a forecasting technique that uses weighted average past time series values to forecast the value of the time series in the next period
Single Exponential Smoothing (SES)
a method for building statistical model that defines a relationship between a single dependent variable and one or more independent variables, all of which are numerical.
Regression Analysis
Excel provides a very simple tool to find the best fitting regression model for a time series.
Excel’s Add trendline option
A linear regression model with more than are independent variable is called
multiple linear
regression model.
relies upon opinions and expertise of people in developing forecasts
judgmental forecasting
is asking those who are close to the end consumer, such as salespeople, about the consumer’s purchasing plan.
Grassroots forecasting