ocr: Figure 3. An Example Object Model in Rumbaugh Notation Person name address phore Session Cashier Store startDate number name starttime password getitemForUPC endlate currentSession: authorizationlevel getcasnhierforNumber CashDrawer endlime isAuthorized operationalState assessrenuverinterval position balance howwanyUveriatervar howwuchovenaterval Register open number updateBalance howManyoveriaterval howwuchUverinterval TaxCategory category rate Sale Item: effectiveDate date number time descrption Payment calcSublotal shortDescription ameunt. calcDiscount, getPeiceForDate UPC calcTax howmanyuv ...