<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title xmlns:d="http://docbook.org/ns/docbook">AppStream</title><link rel="stylesheet" type="text/css" href="Common_Content/css/default.css" /><link rel="stylesheet" media="print" href="Common_Content/css/print.css" type="text/css" /><meta xmlns:d="http://docbook.org/ns/docbook" name="generator" content="publican v4.3.2" /><meta xmlns:d="http://docbook.org/ns/docbook" name="package" content="AppStream-AppStream-0.11-en-US-0.0-0" /><meta name="description" content="AppStream is a collaborative effort for enhancing the way we interact with the software repositories provided by the distribution by standardizing sets of additional metadata. AppStream provides the foundation to build software-center applications. It additionally provides specifications for things like an unified software metadata database, screenshot services and various other things needed to create user-friendly application-centers for software distributions." /><link rel="home" href="index.html" title="AppStream" /><link rel="next" href="chap-AppStream-About.html" title="Chapter 1. About AppStream" /></head><body><p id="title"><a class="left" href="http://www.freedesktop.org/wiki/Distributions/AppStream/"><img alt="Product Site" src="Common_Content/images//image_left.png" /></a><a class="right" href="http://www.freedesktop.org/software/appstream/docs/"><img alt="Documentation Site" src="Common_Content/images//image_right.png" /></a></p><ul class="docnav top"><li class="previous"></li><li class="home">AppStream</li><li class="next"><a accesskey="n" href="chap-AppStream-About.html"><strong>Next</strong></a></li></ul><div xml:lang="en-US" class="book" lang="en-US"><div class="titlepage"><div><div class="producttitle"><span xmlns:d="http://docbook.org/ns/docbook" class="productname">AppStream</span> <span xmlns:d="http://docbook.org/ns/docbook" class="productnumber">0.11</span></div><div><h1 class="title"><a id="idp1273906160"></a>AppStream</h1></div><div><h2 class="subtitle">Infrastructure for distro-agnostic software-centers and universal software component metadata</h2></div><p xmlns:d="http://docbook.org/ns/docbook" class="edition">Edition 1</p><div><h3 class="corpauthor"> <span class="inlinemediaobject"><img src="images/appstream-logo.png" /></span> </h3></div><div><div xml:lang="en-US" class="authorgroup" lang="en-US"><div class="author"><h3 class="author"><span class="firstname">Matthias</span> <span class="surname">Klumpp</span></h3><div class="affiliation"><span xmlns:d="http://docbook.org/ns/docbook" class="orgname">Debian</span></div><code class="email"><a class="email" href="mailto:mak@debian.org">mak@debian.org</a></code></div><div class="author"><h3 class="author"><span class="firstname">Michael</span> <span class="surname">Vogt</span></h3><div class="affiliation"><span xmlns:d="http://docbook.org/ns/docbook" class="orgname">Canonical / Ubuntu / Debian</span></div><code class="email"><a class="email" href="mailto:mvo@ubuntu.com">mvo@ubuntu.com</a></code></div><div class="author"><h3 class="author"><span class="firstname">Richard</span> <span class="surname">Hughes</span></h3><div class="affiliation"><span xmlns:d="http://docbook.org/ns/docbook" class="orgname">Fedora / Red Hat</span></div><code class="email"><a class="email" href="mailto:richard@hughsie.com">richard@hughsie.com</a></code></div><div class="author"><h3 class="author"><span class="firstname">Vincent</span> <span class="surname">Untz</span></h3><div class="affiliation"><span xmlns:d="http://docbook.org/ns/docbook" class="orgname">OpenSUSE</span></div><code class="email"><a class="email" href="mailto:vuntz@opensuse.org">vuntz@opensuse.org</a></code></div></div></div><div><div class="legalnotice"><a id="idp1278205728"></a><h1 class="legalnotice">Legal Notice</h1><div class="para"> Copyright <span class="trademark"></span>© 2012-2017 Matthias Klumpp. This material may only be distributed subject to the terms and conditions set forth in the GNU Free Documentation License (GFDL), V1.2 with no invariant sections or later (the latest version is presently available at <a href="http://www.gnu.org/licenses/fdl.txt">http://www.gnu.org/licenses/fdl.txt</a>). </div></div></div><div><div class="abstract"><p class="title"><strong>Abstract</strong></p><div class="para"> AppStream is a collaborative effort for enhancing the way we interact with the software repositories provided by the distribution by standardizing sets of additional metadata. </div><div class="para"> AppStream provides the foundation to build software-center applications. It additionally provides specifications for things like an unified software metadata database, screenshot services and various other things needed to create user-friendly application-centers for software distributions. </div></div></div></div></div><div class="toc"><dl class="toc"><dt><span class="chapter"><a href="chap-AppStream-About.html">1. About AppStream</a></span></dt><dd><dl><dt><span class="section"><a href="chap-AppStream-About.html#about-whatis">1.1. What is AppStream?</a></span></dt></dl></dd><dt><span class="chapter"><a href="chap-Metadata.html">2. Upstream Metadata</a></span></dt><dd><dl><dt><span class="section"><a href="chap-Metadata.html#sect-Metadata-GenericComponent">2.1. Generic Component</a></span></dt><dt><span class="section"><a href="sect-Metadata-Application.html">2.2. Desktop Applications</a></span></dt><dt><span class="section"><a href="sect-Metadata-ConsoleApplication.html">2.3. Console Applications</a></span></dt><dt><span class="section"><a href="sect-Metadata-WebApplication.html">2.4. Web Applications</a></span></dt><dt><span class="section"><a href="sect-Metadata-Service.html">2.5. Services</a></span></dt><dt><span class="section"><a href="sect-Metadata-Addon.html">2.6. Addons</a></span></dt><dt><span class="section"><a href="sect-Metadata-Fonts.html">2.7. Fonts</a></span></dt><dt><span class="section"><a href="sect-Metadata-Codec.html">2.8. Codecs</a></span></dt><dt><span class="section"><a href="sect-Metadata-InputMethod.html">2.9. Input Methods</a></span></dt><dt><span class="section"><a href="sect-Metadata-Firmware.html">2.10. Firmware</a></span></dt><dt><span class="section"><a href="sect-Metadata-Driver.html">2.11. Driver</a></span></dt><dt><span class="section"><a href="sect-Metadata-Localization.html">2.12. Localization</a></span></dt></dl></dd><dt><span class="chapter"><a href="chap-CollectionData.html">3. Collection Metadata</a></span></dt><dd><dl><dt><span class="section"><a href="chap-CollectionData.html#sect-AppStream-XML">3.1. AppStream collection XML</a></span></dt><dt><span class="section"><a href="sect-AppStream-YAML.html">3.2. AppStream collection YAML</a></span></dt><dt><span class="section"><a href="sect-AppStream-IconCache.html">3.3. Icon Cache</a></span></dt></dl></dd><dt><span class="chapter"><a href="chap-Quickstart.html">4. Metadata Quickstart</a></span></dt><dd><dl><dt><span class="section"><a href="chap-Quickstart.html#sect-Quickstart-DesktopApps">4.1. For GUI application upstream maintainers</a></span></dt><dt><span class="section"><a href="sect-Quickstart-Addons.html">4.2. For upstream projects providing addons</a></span></dt><dt><span class="section"><a href="sect-Quickstart-Distros.html">4.3. For distributors packaging Appstream metadata</a></span></dt><dt><span class="section"><a href="sect-Quickstart-Translation.html">4.4. Translating Metadata</a></span></dt></dl></dd><dt><span class="chapter"><a href="chap-AppStream-Services.html">5. Services</a></span></dt><dd><dl><dt><span class="section"><a href="chap-AppStream-Services.html#sect-AppStream-Services-Screenshots">5.1. Screenshot service</a></span></dt><dt><span class="section"><a href="sect-AppStream-Services-UrlHandler.html">5.2. Url handler</a></span></dt></dl></dd><dt><span class="chapter"><a href="chap-AppStream-ManualPages.html">6. Manual pages</a></span></dt><dt><span class="chapter"><a href="chap-AppStream-API.html">7. AppStream API Reference</a></span></dt><dt><span class="index"><a href="ix01.html">Index</a></span></dt></dl></div></div><ul class="docnav"><li class="previous"></li><li class="next"><a accesskey="n" href="chap-AppStream-About.html"><strong>Next</strong>Chapter 1. About AppStream</a></li></ul></body></html>
