XDM, xdm, or similar can refer to:
Computing
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X display manager
In the X Window System, an X display manager is a graphical login manager which starts a login session on an X server from the same or another computer.
A display manager presents the user with a login screen. A session starts when a user su ...
, a part of the X Window System architecture
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XDM (display manager)
The X Display Manager (XDM) is the default display manager for the X Window System. It is a bare-bones X display manager. It was introduced with X11 Release 3 in October 1988, to support the standalone X terminals that were just coming onto t ...
, the default display manager included with the X Window System
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XDM (file format), the Extensible Device Metadata open format for including depth maps and other metadata in standard image files
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XQuery and XPath Data Model
The XQuery and XPath Data Model (XDM) is the data model shared by the XPath 2.0, XSLT 2.0, XQuery, and XForms programming languages. It is defined in a W3C recommendation.Anders Berglund, ''et al.''XQuery 1.0 and XPath 2.0 Data Model W3C, 2010, re ...
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Cross-document messaging
Web Messaging or cross-document messaging, is an API introduced in the WHATWG HTML5 draft specification, allowing documents to communicate with one another across different origins, or source domains while rendered in a web browser. Prior to HTML5, ...
, that works around the limits set by the same origin policy in a web browser
Firearms
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Springfield Armory XD-M
The Springfield Armory XD is a series of semi-automatic pistols sold by Springfield Armory, Inc., in the United States along with follow-on variants: XD-M, XD-S, and XD-E. Polymer-framed and predominantly striker-fired, the series is manufact ...
, a pistol series sold in the United States by Springfield Armory, Inc.
Gaming
* ''
XDM: X-Treme Dungeon Mastery'', a role-playing game supplement by Tracy Hickman, Curtis Hickman and Howard Tayler.
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