42 consulting and engineering services in the fields of design, selection and use of computer networks, terminals and interconnected peripherals, software, telecommunication links and platforms used in connection with transfer for value transactions, transfer payments and data and information transfer related thereto for banks, financial institutions, businesses, retail merchants and their customers; custom design of computer software for back office and internal operations of banks, financial institutions, businesses and merchants in the field of transfer for value transactions via telecommunication links, preparation of instructional manuals