The case for reference models - Revision history

Dbalzer: /* Clarifying the things to talk about */

2011-04-03T14:34:13Z

‎Clarifying the things to talk about

Dbalzer: /* Clarifying the things to talk about */

2011-04-03T11:53:56Z

‎Clarifying the things to talk about

Dbalzer: /* Clarifying the things to talk about */

2011-04-03T11:22:09Z

‎Clarifying the things to talk about

Dbalzer: /* Clarifying the things to talk about */

2011-04-03T11:15:30Z

‎Clarifying the things to talk about

Dbalzer: /* Clarifying the things to talk about */

2011-04-02T21:58:18Z

‎Clarifying the things to talk about

Dbalzer at 08:27, 2 April 2011

2011-04-02T08:27:09Z

Dbalzer at 20:22, 1 April 2011

2011-04-01T20:22:09Z

Dbalzer at 19:52, 1 April 2011

2011-04-01T19:52:00Z

Dbalzer: Created page with "''From the TC 372 Workshop Compendium'' ==Do we talk about the same thing?== '''Naming a data element''' may appear sufficient in order to give it a '''meaning'''. While th..."

2011-04-01T19:30:47Z

Created page with "''From the TC 372 Workshop Compendium'' ==Do we talk about the same thing?== '''Naming a data element''' may appear sufficient in order to give it a '''meaning'''. While th..."

New page

''From the [[TC 372 Workshop Compendium]]''

==Do we talk about the same thing?==

'''Naming a data element''' may appear sufficient in order to give it a '''meaning'''. While this may be true for personal databases, it clearly isn't as soon as people from different backgrounds want to share the information.

{| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
|-
| valign="top" width="405px" |[[File:Country-vs-country.png|400px]]<br />
<span style="font-size:8pt">
</span>

| valign="top" width="405px" |
'''Both statements''' on the left '''appear to be correct''' when viewed independently from each other.

Let's assume that the first statement is from a database of documentaries for educational purposes. Most users of this database will be more interested in '''where the film was shot''', rather than in where it was produced.

The second statement is what we would expect from a general filmographic database where films are usually associated with a '''production country'''.
|}

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 |}
 {| height="20px" width="100%"
 |- style="text-align:center; "
-|<span style="color:#808080"> • Previous: [[How fragmentation happens]] • Up: [[TC 372 Workshop Compendium|Contents]] •  Next: [[....]] • </span>
+|<span style="color:#808080"> • Previous: [[How fragmentation happens]] • Up: [[TC 372 Workshop Compendium|Contents]] •  Next: [[Events in the lifecycle of an audiovisual creation]] • </span>
 |-
 |}

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 Even closer to our task of '''defining metadata concepts''' for audiovisual media is this reference model from the library community.
-Thi model, known as the FRBR, had a profound influence on the discussion about the future of cataloguing. It was also influential during the development of EN 15907.
+This model, known as the FRBR, had a profound influence on the discussion about the future of cataloguing. The diagram shows the four ''type 1'' entities that define '''description levels''' for intellectiual or artistic creations.
 |}

← Older revision		Revision as of 11:15, 3 April 2011
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	'''Clarifying the philosophical perspective''' can be highly useful when defining '''models for''' representing '''domain knowledge'''. In this particular example, the purpose was to enuncuate some basic assumptions before developing a model for information about fishing.		'''Clarifying the philosophical perspective''' can be highly useful when defining '''models for''' representing '''domain knowledge'''. In this particular example, the purpose was to enuncuate some basic assumptions before developing a model for information about fishing.
		+
		+	Since they define a basic frame of reference, these specifications are often called '''reference models''' or reference ontologies.
		+	\|}
		+
		+
		+	{\| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
		+	\|-
		+	\| valign="top" width="405px" \|[[File:Indecs-model-1.png\|400px]]<br />
		+	<span style="font-size:8pt">
		+	From: The <indecs> metadata framework, WP1a-006-2.0. Indecs Framework Ltd., 2000
		+	</span>
		+
		+	\| valign="top" width="405px" \|
		+	This reference model brings us a little closer to our universe of discourse.
		+
		+	While still containing very '''abstract notions''' such as ''concept'' and ''percept'', this model also defines '''more specialised entities''' such as ''manifestation''. It attempts to identify the circumstances under which intellectual and artistic creations can become subject to transactions among people.
		+
	\|}		\|}

@@ Line 91: / Line 91: @@
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-Metho.
+Defining '''classes of things by''' looking at how to distinguish them ('''finding the "differentiae"''') is an intellectual exercise since ancient times.
-And, indeed, modern information science '''does relate''' things back '''to universal categories'''.
+The diagram on the left shows a part of the ''Tree of Porphyry'', derived from an introduction to Aristotelian logic written by Porphyry of Tyre in the 3rd century. This particular rendering was transcribed from a drawing attributed to Peter of Spain (1329).
 |}

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 |<span style="color:#808080"> •  •  • </span>
 |-
 |}

← Older revision		Revision as of 11:22, 3 April 2011
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	\|}		\|}

		+	{\| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
		+	\|-
		+	\| valign="top" width="405px" \|[[File:Frbr-model-1.png\|400px]]<br />
		+	<span style="font-size:8pt">
		+	From: Functional Requirements for Bibliographic Records. IFLA UBCIM Publications – New Series Vol 19. München: K.G. Saur, 1998
		+	</span>
		+
		+	\| valign="top" width="405px" \|
		+	Even closer to our task of '''defining metadata concepts''' for audiovisual media is this reference model from the library community.
		+
		+	Thi model, known as the FRBR, had a profound influence on the discussion about the future of cataloguing. It was also influential during the development of EN 15907.
		+
		+	\|}

← Older revision		Revision as of 20:22, 1 April 2011
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	"Add another field?"		"Add another field?"
		+	\|}
		+
		+	{\| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
		+	\|-
		+	\| valign="top" width="405px" \|[[File:Penguins-4.png\|400px]]<br />
		+	<span style="font-size:8pt">
		+	</span>
		+
		+	\| valign="top" width="405px" \|
		+	One '''data element per country''' of distribution clearly '''isn't workable'''.
		+
		+	After all: what does "Polish distribution title" refer to? The French original version, or a version adapted to the Polish market?
		+
		+	As long as we are cataloguing single copies in an archive, this question may be irrelevant. Once we start exchanging catalogue records with others, it can become an issue that needs to be resolved.
		+	\|}
		+
		+	{\| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
		+	\|-
		+	\| valign="top" width="405px" \|[[File:What-could-this-be.png\|400px]]<br />
		+	<span style="font-size:8pt">
		+	</span>
		+
		+	\| valign="top" width="405px" \|
		+	Asking what something '''is''' can easily lead us back to Adam and Eve (or to the beginning of the universe).
		+
		+	And, indeed, modern information science '''does relate''' things back '''to universal categories'''.
		+	\|}
		+
		+	{\| height="20px" width="100%"
		+	\|- style="text-align:center; "
		+	\|<span style="color:#808080"> • • • </span>
		+	\|-
	\|}		\|}

← Older revision		Revision as of 19:52, 1 April 2011
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	The second statement is what we would expect from a general filmographic database where films are usually associated with a '''production country'''.		The second statement is what we would expect from a general filmographic database where films are usually associated with a '''production country'''.
		+	\|}
		+
		+	{\| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
		+	\|-
		+	\| valign="top" width="405px" \|[[File:Penguins-2.png\|400px]]<br />
		+	<span style="font-size:8pt">
		+	</span>
		+
		+	\| valign="top" width="405px" \|
		+	Apparently we have to consider two locations: one for shooting and one for production.
		+
		+	Then, '''"let's add another field"'''.
		+
		+	In fact, having fifty or more columns (fields) in a table is not uncommon in do-it-yourself databases. Most of these columns have accumulated over time by "let's add another field"
		+	\|}
		+
		+	{\| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
		+	\|-
		+	\| valign="top" width="405px" \|[[File:Penguins-3.png\|400px]]<br />
		+	<span style="font-size:8pt">
		+	</span>
		+
		+	\| valign="top" width="405px" \|
		+	We now learn that the film was '''originally released''' in France as ''La marche de l'empereur''. Apparently, ''March of the penguins'' is a '''distribution title'''.
		+
		+	Unfortunaltely, we soon come across another distribution title, ''Marsz pingwinów''.
		+
		+	"Add another field?"
	\|}		\|}