What is Forecasting Forecasting is the art and science of predicting future events. Forecasting is a statement about the future. “Operations management is designed to support forecasted performances and events. Specifically, operations managers allocate personnel, time, and resources in order to meet the demands of forecasts. The most successful companies achieve their results by assuming just such a proactive vice reactive posture.” (Forecasting) While forecasting is widely used, it does not fit into one model; multiple methods and models exist. Forecasting Future Time Horizons According to Heizer & Render, a forecast is usually classified by the future time horizon that it covers. Time horizons fall into three different categories: short-range forecast, medium-range forecast, and long-range forecast. Short-range forecast is from three months to one year. It is used for planning purchasing, job assignments, job scheduling, workforce levels, and production levels. Medium-range forecast ranges from three months to three years. It is used for planning, budgeting and production planning, cash budgeting, and analysis of various operating plans. Long-range forecast is generally three or more years in time. It is used in planning new products, capital expenditures, facility location or expansion, and research and development.
Types of Forecasting Most organizations use three types of forecasts in planning operations for
References: Delphi Method. (n.d) Retrieved May 30, 2008, from http://www.fratfiles.com.essays.94348.html Heizer, J. & Render, B. (2008). Operations Management. Upper Saddle, NJ: Prentice Hall Forecasting. (2006). Retrieved May 27, 2008, from http://www.oppapers.com.essay.ForecastingPaper.76591 MarketingProfs. Smart thinking…pass it on. (n.d.) Retrieved May 30, 2008, from http://www.marketingprofs.com/Tutorials/Forecast/judgementmodels1.asp Sales Forecasting. (n.d.) Retrieved May 30, 2008, from www.westga.edu/~brutherf/Sales%20Forecasting.ppt Sales Force Composite. (n.d.) Retrieved May 30, 2008, from http://en.mimi.hu/marketingweb/sales_force_composite.html