The S.I.T.B., sub-contractor for a third of French Stockbrokers commissioned me to the creation and development of a monetary Exchange Department and to that effect sent me for 1 month to the USA to observe the functionment of WALL STREET Exchange, to contact the west-coast American Bankers where I had the opportunity to meet the french speaking professor André MELKHANOFF specialist in data bases (subsequently I developed a specific algorithm of research in a data base).