Extensible Access Control Markup Language

What Does Extensible Access Control Markup Language Mean?

Extensible Access Control Markup Language (XACML) is a system for using Extensible Markup Language (XML) conventions to address security and access protocols for the Web or for particular applications. Since 2003, this form of XML has enabled businesses and organizations to control aspects of digital security.

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Techopedia Explains Extensible Access Control Markup Language

XACML is supposed to foster universal interoperability between various types of access control systems. With things like rule-based access control, XACML consolidates authorization and access policies to automate security in key ways. However, there is a lot of controversy about the use of XACML — how widespread it may be, what it can do, and what it is supposed to do, or its intended purposes. Experts contrast XACML other tools like OAuth, which also regard authentication and Web or digital security in similar yet different ways.

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Margaret Rouse

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.