Plain Old XML

What Does Plain Old XML Mean?

The term “plain old XML” (POX) is a reference to certain types or uses of the eXtensible Markup Language (XML) that are less complex or sophisticated than other versions of the language. In general, POX refers to the simple ways of using XML in projects.

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Techopedia Explains Plain Old XML

One of the more technical definitions of POX is that it is an unadorned XML that is transferred over simple protocols such as HTTP, SMTP or FTP, or through some kind of proprietary middleware product. POX can also be defined technically as a type of XML that is unencumbered by wrappers such as SOAP.

IT Professionals may also use POX in a slightly different context. There is the issue of whether to create a schema or additional documentation for XML code models. The idea is that, although there are situations where schemas and other resources may be necessary for larger projects where many pairs of eyes will be on the XML code, there are other situations that can work well without these kinds of extras.

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Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.