Providing information to buyers for ordering goods and services in a wide variety of fields by means of a global comptuer information network, and ordering services to buyers and sellers for ordering goods and services in a wide variety of fields by means of a global computer information network including ordering order transaction routing, multiple protocol support for exchaning content and transaction information, and converting an order into the supplier's preferred tranaction protocol and catalogue development and maintenance services; providing service of automated work-flow for aging goods and services to sellers by means of a global computer information network