Topic Maps - Revision history

Akivela at 17:50, 4 March 2011

2011-03-04T17:50:21Z

Akivela at 19:20, 12 February 2010

2010-02-12T19:20:38Z

Akivela: /* Occurrences */

2010-02-10T21:01:22Z

‎Occurrences

Akivela: /* Other properties of topic */

2010-02-10T21:01:02Z

‎Other properties of topic

Akivela: /* Merging in topic maps */

2010-02-10T21:00:19Z

‎Merging in topic maps

Akivela: /* More about topic maps */

2009-11-09T12:06:09Z

‎More about topic maps

Akivela at 12:03, 9 November 2009

2009-11-09T12:03:08Z

Akivela at 12:37, 11 October 2008

2008-10-11T12:37:24Z

Akivela at 12:37, 11 October 2008

2008-10-11T12:37:07Z

Akivela at 11:12, 11 October 2008

2008-10-11T11:12:01Z

← Older revision		Revision as of 17:50, 4 March 2011
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−	Topic ~~maps are~~ a standardized ([http://www1.y12.doe.gov/capabilities/sgml/sc34/document/0129.pdf ISO 13250]) way to store knowledge. This page contains a very short introduction to topic maps. A more comprehensive documentation is for example [http://www.ontopia.net/topicmaps/materials/tao.html The TAO of Topic Maps]. '''~~Note that~~ Wandora uses a slightly [[Reduced Topic Maps\|reduced version]] of the topic map standard. This page describes the general topic map standard. Some parts of it are not usable in Wandora.'''	+	Topic Maps is a standardized ([http://www1.y12.doe.gov/capabilities/sgml/sc34/document/0129.pdf ISO 13250]) way to store knowledge. This page contains a very short introduction to topic maps. A more comprehensive documentation is for example [http://www.ontopia.net/topicmaps/materials/tao.html The TAO of Topic Maps].
		+
		+	'''Wandora uses a slightly [[Reduced Topic Maps\|reduced version]] of the topic map standard. This page describes the general topic map standard. Some parts of it are not usable in Wandora.'''

	Do you speak Finnish? Puhutko suomea? Suomenkielisen Topic Maps -esittelyn löydät [[Aihekartat\|täältä]]!		Do you speak Finnish? Puhutko suomea? Suomenkielisen Topic Maps -esittelyn löydät [[Aihekartat\|täältä]]!

← Older revision		Revision as of 19:20, 12 February 2010
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	Topic maps are a standardized ([http://www1.y12.doe.gov/capabilities/sgml/sc34/document/0129.pdf ISO 13250]) way to store knowledge. This page contains a very short introduction to topic maps. A more comprehensive documentation is for example [http://www.ontopia.net/topicmaps/materials/tao.html The TAO of Topic Maps]. '''Note that Wandora uses a slightly [[Reduced Topic Maps\|reduced version]] of the topic map standard. This page describes the general topic map standard. Some parts of it are not usable in Wandora.'''		Topic maps are a standardized ([http://www1.y12.doe.gov/capabilities/sgml/sc34/document/0129.pdf ISO 13250]) way to store knowledge. This page contains a very short introduction to topic maps. A more comprehensive documentation is for example [http://www.ontopia.net/topicmaps/materials/tao.html The TAO of Topic Maps]. '''Note that Wandora uses a slightly [[Reduced Topic Maps\|reduced version]] of the topic map standard. This page describes the general topic map standard. Some parts of it are not usable in Wandora.'''

−	Do you speak Finnish? Puhutko suomea? Suomenkielisen Topic ~~Map~~ -esittelyn löydät [[Aihekartat\|täältä]]!	+	Do you speak Finnish? Puhutko suomea? Suomenkielisen Topic Maps -esittelyn löydät [[Aihekartat\|täältä]]!

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 == Occurrences ==
-Occurrences are used for two different purposes in topic maps. They can be used to link documents addressable with [[URI]] to the topic. These documents should have some relevance to the topic. They can for example be depictions of the topic, be articles that discuss the topic or they might have the textual contents of the topic if the topic represents a book. These occurrences are called ''resource reference'' occurrences.
+Occurrences are used for two different purposes in topic maps. They can be used to link documents addressable with URI to the topic. These documents should have some relevance to the topic. They can for example be depictions of the topic, be articles that discuss the topic or they might have the textual contents of the topic if the topic represents a book. These occurrences are called ''resource reference'' occurrences.
 Occurrences can also contain textual data instead of being a ling to some external (or in some cases internal)) resource. If the topic represents a poem, the occurrence might contain the full textual representation of the poem. These ''resource data'' occurrences can also be used to add short pieces of information about the topic such as the birth date of a person, dimensions of a picture etc.

@@ Line 43: / Line 43: @@
 == Other properties of topic ==
-Topics also have other properties. One of the most important is the name of the topic. Topics can infact have several different kinds of names. ''Base names'' are names that unambiquously identify the topic. For example a base name could be "Washington, Missouri, USA" to represent the city Washington in the state of Missouri in USA. As you can see, it is important to take care so that the topic is not confused with any of the other cities named Washington.
+Topics also have other properties. One of the most important is the name of the topic. In fact, topics can have several different kinds of names. ''Base names'' are names that unambiguously identify the topic. For example a base name could be "Washington, Missouri, USA" to represent the city Washington in the state of Missouri in USA. As you can see, it is important to take care so that the topic is not confused with any of the other cities named Washington.
 Topics can also have ''variant names''. Variant names are other common ways used to refer to the topic. They need not be unique. A variant name for the city of Washington in Missouri could be just "Washington". Same variant name could be used for other cities.
-Another very important property of topics is subject identifier. They are URIs that uniquely identify topics. What the identifying URI is, is application dependant. Some obvious choices would be the URI of the home page of a person, company or city the topic represents or URI to the original copy of an image.
+Another very important property of topics is subject identifier. They are URIs that uniquely identify topics. What the identifying URI is, is application dependent. Some obvious choices would be the URI of the home page of a person, company or city the topic represents or URI to the original copy of an image.
 == Merging in topic maps ==

@@ Line 51: / Line 51: @@
 == Merging in topic maps ==
-Topics in topic maps have a few properties that must be unique in topic map. In traditional databases, if you try to add a unique identifier that is allready in use in the database, you would usually get an error message. Topic maps usually use a different philosophy.
+Topics in topic maps have a few properties that must be unique in topic map. In traditional databases, if you try to add a unique identifier that is already in use in the database, you would usually get an error message. Topic maps usually use a different philosophy.
-Suppose that you have two different topics "Helsinki" and "Helsingfors" (swedish for Helsinki). Now you add subject identifiers, the home page of city of Helsinki is [http://www.hel.fi http://www.hel.fi] and could be used as a subject identifier. Only one topic in the topic map may have this subject identifier because subject identifiers must be unique. Instead of getting an error message when you add the same subject identifier to both topics, the two topics will be merged. By using same subject identifiery you have in effect stated that the two topics are in fact the same topic. Thus it is logical to merge the two topics into one topic. The new merged topic will contain all information from both of the unmerged topics.
+Suppose that you have two different topics "Helsinki" and "Helsingfors" (Swedish for Helsinki). Now you add subject identifiers, the home page of city of Helsinki is [http://www.hel.fi http://www.hel.fi] and could be used as a subject identifier. Only one topic in the topic map may have this subject identifier because subject identifiers must be unique. Instead of getting an error message when you add the same subject identifier to both topics, the two topics will be merged. By using same subject identifier you have in effect stated that the two topics are in fact the same topic. Thus it is logical to merge the two topics into one topic. The new merged topic will contain all information from both of the unmerged topics.
-Merging is a very powerfull tool in topic maps. It can be used to merge two different topic maps. For example someone might have a topic map which describe artists and their works and maybe even have pictures of all different works. Another topic map might contain biographical information about the artists but not the pictures. These two topic maps can be merged together to form a topic map with all the artists, picutres and biographical information.
+Merging is a very powerful tool in topic maps. It can be used to merge two different topic maps. For example someone might have a topic map which describe artists and their works and maybe even have pictures of all different works. Another topic map might contain biographical information about the artists but not the pictures. These two topic maps can be merged together to form a topic map with all the artists, pictures and biographical information.
 Merging of topics is the key concept behind the [[Introduction to Layered Topic Maps|Layered Topic Map]] philosophy Wandora uses.

@@ Line 73: / Line 73: @@
 * [http://www.xml.com/pub/a/2002/09/11/topicmaps.html What Are Topic Maps]
 * [http://www.topicmap.com/ topicmap.com]
 * [http://www.ontopia.net/topicmaps/materials/tao.html The TAO of Topic Maps]

← Older revision		Revision as of 12:03, 9 November 2009
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	Topic maps are a standardized ([http://www1.y12.doe.gov/capabilities/sgml/sc34/document/0129.pdf ISO 13250]) way to store knowledge. This page contains a very short introduction to topic maps. A more comprehensive documentation is for example [http://www.ontopia.net/topicmaps/materials/tao.html The TAO of Topic Maps]. '''Note that Wandora uses a slightly [[Reduced Topic Maps\|reduced version]] of the topic map standard. This page describes the general topic map standard. Some parts of it are not usable in Wandora.'''		Topic maps are a standardized ([http://www1.y12.doe.gov/capabilities/sgml/sc34/document/0129.pdf ISO 13250]) way to store knowledge. This page contains a very short introduction to topic maps. A more comprehensive documentation is for example [http://www.ontopia.net/topicmaps/materials/tao.html The TAO of Topic Maps]. '''Note that Wandora uses a slightly [[Reduced Topic Maps\|reduced version]] of the topic map standard. This page describes the general topic map standard. Some parts of it are not usable in Wandora.'''

−	Puhutko suomea? Suomenkielisen Topic Map -esittelyn löydät [[Aihekartat\|täältä]]!	+	Do you speak Finnish? Puhutko suomea? Suomenkielisen Topic Map -esittelyn löydät [[Aihekartat\|täältä]]!

@@ Line 1: / Line 1: @@
 Topic maps are a standardized ([http://www1.y12.doe.gov/capabilities/sgml/sc34/document/0129.pdf ISO 13250]) way to store knowledge. This page contains a very short introduction to topic maps. A more comprehensive documentation is for example [http://www.ontopia.net/topicmaps/materials/tao.html The TAO of Topic Maps]. '''Note that Wandora uses a slightly [[Reduced Topic Maps|reduced version]] of the topic map standard. This page describes the general topic map standard. Some parts of it are not usable in Wandora.'''
-* Puhutko suomea? Suomenkielisen Topic Map -esittelyn löydät [[Aihekartat|täältä]]!
+Puhutko suomea? Suomenkielisen Topic Map -esittelyn löydät [[Aihekartat|täältä]]!
 == Topics ==

← Older revision		Revision as of 11:12, 11 October 2008
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	Topic maps are a standardized ([http://www1.y12.doe.gov/capabilities/sgml/sc34/document/0129.pdf ISO 13250]) way to store knowledge. This page contains a very short introduction to topic maps. A more comprehensive documentation is for example [http://www.ontopia.net/topicmaps/materials/tao.html The TAO of Topic Maps]. '''Note that Wandora uses a slightly [[Reduced Topic Maps\|reduced version]] of the topic map standard. This page describes the general topic map standard. Some parts of it are not usable in Wandora.'''		Topic maps are a standardized ([http://www1.y12.doe.gov/capabilities/sgml/sc34/document/0129.pdf ISO 13250]) way to store knowledge. This page contains a very short introduction to topic maps. A more comprehensive documentation is for example [http://www.ontopia.net/topicmaps/materials/tao.html The TAO of Topic Maps]. '''Note that Wandora uses a slightly [[Reduced Topic Maps\|reduced version]] of the topic map standard. This page describes the general topic map standard. Some parts of it are not usable in Wandora.'''
		+
		+	Puhutko suomea? Suomenkielisen Topic Map -esittelyn löydät [[Aihekartat\|täältä]]!

	== Topics ==		== Topics ==