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''This page has been in part copied from the Semantic MediaWiki web site at [http://ontoworld.org/wiki/Help:Annotation Ontoworld]. Please refer to that site for more detailed explanations and examples of Centiare's powerful semantic tagging facilities. For assistance in creating custom tags, see [[Centiare:Semantic tagging]].''

''This page has been in part copied from the Semantic MediaWiki web site at [http://ontoworld.org/wiki/Help:Annotation Ontoworld]. Please refer to that site for more detailed explanations and examples of MyWikiBiz's powerful semantic tagging facilities. For assistance in creating custom tags, see [[Help:Semantic tagging]].''

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'''Annotation''' of data in Centiare is what really makes this site "pop", and greatly assists in [[search engine optimization]] (SEO).  By assigning tags to different nuggets of information as either '''[[Special:Attributes|Attributes]]''', '''[[Special:Categories|Categories]]''', or '''[[Special:Relations|Relations]]''', we enable both humans and computers the ability to execute [[Centiare:ASK|amazing "ASK" searches]] of all Centiare's contents.  If you're thinking of adding a new Attribute, Category or Relation you've dreamed up for your own custom requirements, check these lists first -- maybe someone has already created what you're considering. Then read through the instructions to get a  better idea of ''[[Centiare:Semantic tagging|how to create your own annotation(s)]]''.

'''Annotation''' of data in MyWikiBiz is what really makes this site "pop", and greatly assists in [[search engine optimization]] (SEO).  By assigning tags to different nuggets of information as either '''[[Special:Attributes|Attributes]]''', '''[[Special:Categories|Categories]]''', or '''[[Special:Relations|Relations]]''', we enable both humans and computers the ability to execute [[Help:ASK|amazing "ASK" searches]] of all MyWikiBiz's contents.  If you're thinking of adding a new Attribute, Category or Relation you've dreamed up for your own custom requirements, check these lists first -- maybe someone has already created what you're considering. Then read through the instructions to get a  better idea of ''[[Help:Semantic tagging|how to create your own annotation(s)]]''.

This page explains the basic annotation features for [http://meta.wikimedia.org/wiki/Semantic_MediaWiki Semantic MediaWiki]. Annotations are special mark-up elements which allow users to label some parts of the directory's content, so that software tools can use them to assist other users.  The annotations also allow changes in data on one page to automatically propagate to other pages containing the same data (somewhat comparable with what can be done with [[Centiare:Template namespace|template]]s). Users who are not familiar with the basics of editing MediaWiki should first read the [[Centiare:Cheatsheet|Cheatsheet]].

This page explains the basic annotation features for [http://meta.wikimedia.org/wiki/Semantic_MediaWiki Semantic MediaWiki]. Annotations are special mark-up elements which allow users to label some parts of the directory's content, so that software tools can use them to assist other users.  The annotations also allow changes in data on one page to automatically propagate to other pages containing the same data (somewhat comparable with what can be done with [[Help:Template namespace|template]]s). Users who are not familiar with the basics of editing MediaWiki should first read the [[Help:Cheatsheet|Cheatsheet]].

Annotations in Semantic MediaWiki can be viewed as an extension of the existing system of [[Centiare:Categorization|categories]] in [[Directory:MediaWiki|MediaWiki]]. Categories are a means to ''classify'' articles according to certain criteria. For example, by adding <nowiki>[[Category:Cities]]</nowiki> to an article, the page is ''tagged'' as describing a city. Software tools can use this information to generate an ordered list of all cities in a wiki, and thus help users to browse the information.  

Annotations in Semantic MediaWiki can be viewed as an extension of the existing system of [[Help:Categorization|categories]] in [[Directory:MediaWiki|MediaWiki]]. Categories are a means to ''classify'' articles according to certain criteria. For example, by adding <nowiki>[[Category:Cities]]</nowiki> to an article, the page is ''tagged'' as describing a city. Software tools can use this information to generate an ordered list of all cities in a wiki, and thus help users to browse the information.  

Semantic MediaWiki uses the Category information, but provides further (we think ''better'') means of structuring the wiki:

Semantic MediaWiki uses the Category information, but provides further (we think ''better'') means of structuring the wiki:

* '''Attributes''' allow users to assign further information to an article by specifying ''data values'' for certain characteristic features. For example, [[Berlin]] could be associated with a ''population'' of 3,396,990.

* '''Attributes''' allow users to assign further information to an article by specifying ''data values'' for certain characteristic features. For example, [[Berlin]] could be associated with a ''population'' of 3,396,990.

Since Categories, Relations, and Attributes merely emphasize a particular part of an article's content, they are often called ''(semantic) annotations''. Information that was provided in an article anyway, for example, that '''Berlin is the capital of Germany''', is now provided in a formal way accessible to software tools like the [[Centiare:ASK|Centiare ASK]] code.

Since Categories, Relations, and Attributes merely emphasize a particular part of an article's content, they are often called ''(semantic) annotations''. Information that was provided in an article anyway, for example, that '''Berlin is the capital of Germany''', is now provided in a formal way accessible to software tools like the [[Help:ASK]] code.

== Categories ==

== Categories ==

preferably toward the end of the article. The name of the category (here: "Example category") is arbitrary, but of course you should try to use categories that already exist instead of creating new ones. Every category has its own article, which can be linked to by writing <nowiki>[[:Category:Example category]]</nowiki>. The category's article text can be empty, but it is strongly recommended to add a description that explains which articles should go into the category.

preferably toward the end of the article. The name of the category (here: "Example category") is arbitrary, but of course you should try to use categories that already exist instead of creating new ones. Every category has its own article, which can be linked to by writing <nowiki>[[:Category:Example category]]</nowiki>. The category's article text can be empty, but it is strongly recommended to add a description that explains which articles should go into the category.

Categories can have many different interpretations. For example, the category "City" might comprise of all articles about cities, i.e. it describes that something is a city. Other categories, such as the category "Mathematics," might rather describe the topic area of an article. Many other interpretations exist. Semantic MediaWiki endorses this practical usage of categories: categories should be used to describe collections of articles that are considered useful or interesting for users. However, the advanced search functions of Semantic MediaWiki may make some categories superfluous, so that a wiki enabled with Semantic MediaWiki (like Centiare is!) might achieve a very high degree of organization with far fewer categories.  Instead, learn to use Attributes and Relations.

Categories can have many different interpretations. For example, the category "City" might comprise of all articles about cities, i.e. it describes that something is a city. Other categories, such as the category "Mathematics," might rather describe the topic area of an article. Many other interpretations exist. Semantic MediaWiki endorses this practical usage of categories: categories should be used to describe collections of articles that are considered useful or interesting for users. However, the advanced search functions of Semantic MediaWiki may make some categories superfluous, so that a wiki enabled with Semantic MediaWiki (like MyWikiBiz is!) might achieve a very high degree of organization with far fewer categories.  Instead, learn to use Attributes and Relations.

== Relations ==

== Relations ==