Day 20. XML Web Services
Over the years, numerous attempts have been made to create a standard protocol for remote procedure calls (RPC). These are 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. This allows 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 its partner’s implementation language.
Web services—networking programs that use the Web to offer data in a form easily digested by other software—are being employed to share account authentication between sites, facilitate e-commerce transactions between stores, ...
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