The Currency represents the currency in reality. <br/>CurrencyUnit is measurement unit of a Currency. Currency uses 1 or more CurrencyUnits. For example, Currency (code=CNY, symbol= ￥) uses three CurrencyUnits (Yuan, Jiao, Fen). <br/>Each CurrencyUnit might have a specific name according to the Language (CurrencyUnitName). For CurrencyUnitName Yuan associated to Language (alphabetName=Chinese), CurrencyUnit (rate =1, isStadUnit = True, isMinUnit = False).<br/>Under different languages, a CurrencyUnit has different names, e.g Yuan in English and 元 in Chinese to express the same basic currency unit in Chinese currency. <br/>A Currency might be exchanged with a specific rate. So Currency is associated to many CurrencyExchangeRates with CurrencyUsedAsSource and CurrencyUsedAsDestination relationships.<br/>Currency can be used in many different Countries and for each language a specific name might exist (CurrencyName) such as Renminbi Yuan in English and 人民币元 in Chinese to express the same Chinese currency.<br/>PartyRoleCurrency represents the currency that PartyRole may use.<br/>AccountCurrency represents the currency that might be used for producing bills related to the Account. One of them specifies the default Currency used.<br/>
