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DITA Introduction
In this section, DITA and the technologies in the background are explained.
Who is using DITA
This list shows the companies who voted for the DITA 1.3 specification.

DITA Introduction
In this section, DITA and the technologies in the background are explained.
- What is XML?
  DITA is based on the Extensible Markup Language (XML). XML is a meta-language for creating new languages. To understand what DITA is, it is important to understand what XML is and how it works.
- What is DITA?
  This section explains the basic principles of DITA.
- The History of DTA
  This is a short summary of the DITA history. The detailed history can be looked up at http://dita.xml.org/book/history-of-dita.
- Simple project hierarchy
  A DITA project usually contains a DITA Map with multiple <topicref> elements that reference DITA Topics.
- Why using DITA?
  This section lists benefits of DITA.
- Who is using DITA
  This list shows the companies who voted for the DITA 1.3 specification.
- DITA at SAP
  SAP presented their worldwide DITA environment at the DITA-OT-Day 2016 in Munich/Germany.

Who is using DITA

This list shows the companies who voted for the DITA 1.3 specification.

AT&T
Adobe
Alcatel-Lucent
Cisco Systems
Deutsche Boerse AG
Deutsche Telekom AG
EMC
Ericsson
Fujitsu Limited
Hewlett Packard Enterprise (HPE)
Huawei Technologies Co., Ltd.
IBM
M.I.T.
Microsoft
Nokia Solutions and Networks
Oracle
PTC
Red Hat
SAP SE
SDL
Siemens AG
TYPO3 Association
The Boeing Company
US Department of Defense (DoD)
VMware, Inc.