Delphi (pronounced DEHL-FAI) from Borland competes with Visual Basic as an offering for an object-oriented, visual programming approach to application development. Based on object Pascal programming language, the latest version of Delphi includes facilities for rapidly building or converting an application into a Web service. It provides interfaces for the programmer to build an application using the Extensible Markup Language (XML), Extensible Stylesheet Language (XSL), Simple Object Access Protocol (SOAP), and Web Services Description Language (WSDL).
In ancient Greece, Delphi was the seat of the famous oracle that powerful people consulted for advice. When Borland's developers expanded their popular version of Pascal into an application builder with interfaces to databases such as Oracle, they chose Delphi as the code name for the project. News media and early users liked the name so it was marketed as Delphi.