Chapter 20. XML Web Services
Over the years, there have been numerous attempts to create a standard protocol for remote procedure calls (RPC), a way for one computer program to call a procedure in another program over a network such as the Internet.
Often these protocols are completely language agnostic, enabling a client program written in a language such as C++ to call a remote database server written in Java or something else without either side knowing or caring about the implementation language of its partner.
RPC efforts are being driven at breakneck speed by web services, networking programs that use the Web to offer data in a form easily digested by other software. Web services are being employed to share password authentication information ...