Characteristics of Inventory Systems Demand:patterns and characteristics Constant versus variable; ·Known versus random 图Lead Time Ordered from the outside; ·Produced internally Review patterns Continuous-supermarket; Periodic-regular stock-taking for a grocery store; Excess demand-demand that cannot be filled immediately from stock; backordered or lost. 国 Changing inventory Limited shelf life-perishability; Become obsolete-obsolescence;Characteristics of Inventory Systems Demand: patterns and characteristics • Constant versus variable; • Known versus random Lead Time • Ordered from the outside; • Produced internally Review patterns • Continuous-supermarket; • Periodic-regular stock-taking for a grocery store; Excess demand-demand that cannot be filled immediately from stock; backordered or lost. Changing inventory • Limited shelf life- perishability; • Become obsolete- obsolescence;