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.
DEFINITION of 'Forecasting'. The use of historic data to determine the direction of future trends. Forecasting is used by companies to determine how to allocate their budgets for an upcoming period of time.This is typically based on demand for the goods and services it offers, compared to the cost of producing them.orecasting is used by companies to determine how to allocate their budgets for an upcoming period of time. This is typically based on demand for the goods and services it offers, compared to the cost of producing them.