Really Simple Discovery
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Really Simple Discovery (RSD) is an
XML Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing data. It defines a set of rules for encoding electronic document, documents in a format that is both human-readable and Machine-r ...
format and a publishing convention for making services exposed by a
blog A blog (a Clipping (morphology), truncation of "weblog") is an informational website consisting of discrete, often informal diary-style text entries also known as posts. Posts are typically displayed in Reverse chronology, reverse chronologic ...
or other software discoverable by client software. It is a way to reduce the information required to set up editing/blogging software to three well known elements:
username A user is a person who uses a computer or Computer network, network Service (systems architecture), service. A user often has a user account and is identified to the system by a username (or user name). Some software products provide serv ...
,
password A password, sometimes called a passcode, is secret data, typically a string of characters, usually used to confirm a user's identity. Traditionally, passwords were expected to be memorized, but the large number of password-protected services t ...
, and
homepage A home page (or homepage) is the main web page of a website. Usually, the home page is located at the Root directory, root of the website's Domain name, domain or subdomain. For example, if the domain is example.com, the home page is likely l ...
URL A uniform resource locator (URL), colloquially known as an address on the Web, is a reference to a resource that specifies its location on a computer network and a mechanism for retrieving it. A URL is a specific type of Uniform Resource Identi ...
. Any other critical settings should either be defined in the RSD file related to the website, or discoverable using the information provided.


History

RSD was authored by Daniel Berlinger in th
Really Simple Discoverability 1.0
specification.


Format

To make use of RSD, the owner of a site places a link tag in the head section of the homepage which indicates the location of the RSD file. An example of what
MediaWiki MediaWiki is free and open-source wiki software originally developed by Magnus Manske for use on Wikipedia on January 25, 2002, and further improved by Lee Daniel Crocker,mailarchive:wikipedia-l/2001-August/000382.html, Magnus Manske's announc ...
uses is: If this tag is missing or the file is not found, clients should look in the default location, which is a file named rsd.xml in the webroot.{{cite web , url=http://cyber.law.harvard.edu/blogs/gems/tech/rsd.html#ODoxNTozNiBBTQdbdb , title=RFC: Really Simple Discoverability 1.0 , date=2007-10-16 For example, at https://example.net/rsd.xml.


Contents

Here is a sample RSD file, fro
"Really Simple Discoverability 1.0"
Blog Munging CMS http://www.blogmunging.com/ http://www.userdomain.com/ http://www.conversant.com/docs/api/ Additional explanation here. a value another value ...
MediaWiki MediaWiki is free and open-source wiki software originally developed by Magnus Manske for use on Wikipedia on January 25, 2002, and further improved by Lee Daniel Crocker,mailarchive:wikipedia-l/2001-August/000382.html, Magnus Manske's announc ...
example: http://mediawiki.org/wiki/API false MediaWiki http://www.mediawiki.org/


Usage of RSD

*
StatusNet GNU social (and its predecessor StatusNet) is a largely defunct free and open-source microblogging social networking service that implements the OStatus and ActivityPub standards for interoperability between installations. While offering similar f ...
*
MediaWiki MediaWiki is free and open-source wiki software originally developed by Magnus Manske for use on Wikipedia on January 25, 2002, and further improved by Lee Daniel Crocker,mailarchive:wikipedia-l/2001-August/000382.html, Magnus Manske's announc ...
*
WordPress WordPress (WP, or WordPress.org) is a web content management system. It was originally created as a tool to publish blogs but has evolved to support publishing other web content, including more traditional websites, electronic mailing list, ma ...
Wordpress source code for rsd_link
/ref>


See also

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Blog A blog (a Clipping (morphology), truncation of "weblog") is an informational website consisting of discrete, often informal diary-style text entries also known as posts. Posts are typically displayed in Reverse chronology, reverse chronologic ...
*
CMS CMS may refer to: Computing * Call management system * CMS-2, a programming language implemented for and used by the United States Navy * Code Morphing Software, a technology used by Transmeta * Collection management system for a museum coll ...
*
WS-Discovery Web Services Dynamic Discovery (WS-Discovery) is a technical specification that defines a multicast discovery protocol to locate services on a local network. It operates over TCP and UDP port 3702 and uses IP multicast address or . As the name s ...
*
UDDI Web Services Discovery provides access to software systems over the Internet using standard protocols. In the most basic scenario there is a ''Web Service Provider'' that publishes a service and a ''Web Service Consumer'' that uses this service. ...
*
ebXML Electronic Business using eXtensible Markup Language, commonly known as e-business XML, or ebXML (pronounced ee-bee-ex-em-el, 'bi,eks,em'el as it is typically referred to, is a family of XML based standards sponsored by OASIS and UN/CEFACT whose ...
*
WSDL The Web Services Description Language (WSDL ) is an XML-based interface description language that is used for describing the functionality offered by a web service. The acronym is also used for any specific WSDL description of a web service (also ...


References


External links


Really Simple Discoverability 1.0 by Daniel Berlinger

Forum thread with participation by Berlinger, contains common language explanations
Web services Web service specifications XML-based standards Service discovery protocols