Medical Definition of melena. : the passage of dark tarry stools containing decomposing blood that is usually an indication of bleeding in the upper part of the digestive tract and especially the esophagus, stomach, and duodenumâcompare hematochezia.
A forecast analyst's job is to research how to capitalize on existing trends as well as identify new and developing trends and sales opportunities in the market. A bachelor's degree is necessary for most forecast analysis positions, and a master's degree is often preferred for higher-level roles. Source: *U.S.
A key function for planning operations and production in companies is estimating demand by forecasting sales. This function is especially important for small businesses because losses due to unsold inventory may threaten the company's survival.Forecasting reduces uncertainty but replaces it with the risk of excess inventory, reduced profit or other specific risks.orecasters estimate the level of demand and supply, set their own price levels and develop plans for competitors' approach to the market. The risk of this type of forecasting is that estimates may be wrong because some of the underlying data is inaccurate or unavailable.