The notion of "traing room" (sometimes used as a synonym of "trading floor", see below) is widely used in financial markets to refer to the office space where market activities are concentrated in investment banks or brokerage houses. Financial trading rooms often consists of open-space large offices where financial workers (often referred to as "traders") monitor the markets, develop financial products, or engage into trading activities with other counterparties (through the telephone or through electronic interfaces). Contemporary trading rooms are highly technological spaces. The different trading or sales desks are equipped with financial data technologies such as the ones provided by companies such as Bloomberg or Reuters.