Handheld Device Markup Language

{{short description|Markup language}}

{{Infobox technology standard

| title = HDML

| long_name = Handheld Device Markup Language

| native_name = Handheld Device Markup Language

| native_name_lang = en

| image = Mobile Web Standards Evolution Vector.svg

| caption = Evolution of mobile web standards

| status =

| year_started = 1996{{cite magazine |date=October 7, 1996|title=AllianceRoundup, Redwood Shores, Calif|magazine=InfoWorld|publisher= IDG|issn=0199-6649|volume=18|number=41|page=TW/1}}

| first_published = {{Start date|1997|04|11|df=y}}{{Cite web|url=https://www.w3.org/TR/NOTE-Submission-HDML-spec.html|title=Handheld Device Markup Language Specification|first1=Peter|last1=King|first2=Tim|last2=Hyland|website=W3C|date=1997-04-11|access-date=2021-04-04}}

| version = HDML 2.0

| version_date =

| preview =

| preview_date =

| organization = {{Plainlist|

• World Wide Web Consortium
• Unwired Planet

}}

| committee =

| editors =

| authors = {{Plainlist|

• Peter King
• Tim Hyland

}}

| base_standards =

| related_standards = {{Plainlist|

• HTML
• WML (Wireless Markup Language)

}}

| abbreviation = HDML

| domain =

| license =

| website = {{URL|https://www.w3.org/TR/NOTE-Submission-HDML-spec.html}}

}}

The Handheld Device Markup Language (HDML) is a markup language intended for display on handheld computers, information appliances, smartphones, etc.. It is similar to HTML,{{cite magazine |last=Blass|first=Steve|date=October 11, 1999|title=Ask Dr. Intranet What does HDML stand for and what is its purpose?|magazine=Network World|publisher= IDG|issn=0887-7661|volume=16|number=41|page=41}} but for wireless and handheld devices with small displays, like PDA, mobile phones and so on.

It was originally developed in about 1996 by Unwired Planet, the company that became Phone.com and then Openwave.{{Cite magazine|last=Dragan|first=Richard V.|date= March 6, 2001|title= Internet Pro, Wireless by Design |magazine= PC Magazine |publisher=Ziff Davis|issn=0888-8507|volume=20|number=5|page=IP04}} HDML was submitted to W3C for standardization,{{Cite news| title = HDML Standard Submission & Specification | date = 1997-04-11 | url = http://www.w3.org/Submission/1997/5/}} but was not turned into a standard. Instead it became an important influence on the development and standardization of WML, which then replaced HDML in practice. Unlike WML, HDML has no support for scripts.{{cite magazine |last1=Pender|first2=Lee|last2=Dunne|first1=Danielle|date=March 15, 2001|title=Glossary, HDML|magazine=CIO|publisher= CXO Media (IDG)|issn=0894-9301|volume=14|number=11|page=126}}