FactGrid:Data modeling: Difference between revisions

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== The Problem of on-and off existence ==
== FactGrid:Vocabularies ==
* [[FactGrid:Vocabularies|Vocabularies]] for vocabularies used in FactGrid
* [[FactGrid:Vocabulary model|Vocabulary model]] for vocabularies stored in FactGrid


Goths's Lodge [[Item:Q10575]] is a typical example: it has a starting point [[Property:P49]] but actually several new starts and more than one end [[Property:P50]]. People found a lodge, the lodge is closed (in the events of the French Revolution), it re-opens in the national wave of the Napoleonic wars, it is closed again in 1935 and re-eopened in 1949 or later or never.
== FactGrid data models ==
* [[FactGrid:Freemasonry data model|Freemasonry]]
* [[FactGrid:Data model for manuscripts|Medieval Codices]]
* [[FactGrid:Print publications data model|Print publications]]
* [[FactGrid:Prose fiction data model|Prose fiction]]
* [[FactGrid:Career Statements|Career Statements]]


Is it always the same lodge? What do we do with changing names? The German National Library creates loads of items under ever new names - and you have to make sure to get the respective successions. The alternative: If those involved wanted to state that they actually are the same people (even if that is only a fiction of continuity) let them:
== Sample Items ==
 
* [[Item:Q385847|Address]]
The present solution: We have started to use [[Property:P137]] "History" and [[Item:Q94446]] "active phase":
* [[Item:Q272575|Book (1719)]]
 
* [[Item:Q418721|Conference]]
See [[Item:Q10575]] Lodge "Ernst zum Compaß", Gotha
* [[Item:Q436785|Cooking recipe]]
 
* [[Item:Q40154|Duchy]]
We can now use qualifiers on each active phase in order to state a respective beginning and a respective end. Is this a good option? How does it work in SPARQL searches if you want to give a time line? How does the option agree with the general P49/P50 use on items?
* [[Item:Q133|Human (*1731)]] / [[Item:Q18837|Human (*1889)]]
 
* [[Lexeme:L1|Lexeme]]
== Changing names ==
* [[Item:Q10575|Lodge]]
 
* [[Item:Q393504|Manuscript]]
An organisation can run through dozens of name changes over the years - e.g. an Early Modern Publishing house with name changes whenever a father hands down the business to son, wife, son in law etc.
* [[Item:Q195108|Political Party]]
 
* [[Item:Q418619|Prize-question]]
We are presently using [[Property:P57]] for a history of naming but that is not ideal since usual searches will not get to the the right names at the right moment.
* [[Item:Q102134|Unit of length]]
 
* [[Item:Q451049|War]]
== Stemmata ==
[[File:Howald-sigerist.png|thumb|Ernst Howald and Henry E. Sigerist. Antonii Musa De herba vettonica ... Leipzig 1927]] We created two properties for this: [[Property:P233]] names the object - a book edition, a manuscript or any other thing that is genetically earlier. [[Property:P234]] comes as the qualifier and offers a statement on what basis the object can be seen as a following. You might for instance link a translation to the edition that gave the original text.
 
The organisation is top down chronological (the guide lines in the picture above are not that beautiful, but dates on y-axis would be cool).
 
Objects can have multiple connections to earlier Items (a medieval scribe could use two books to create a new version of the text).
 
It would be cool if the P234 information became available on the lines that ar connecting items.
 
One of the problems is here also: How do I select a family of items?
 
== The situation at a particular point in time ==
Think of a house: Tenants are moving in and out - we can model that with [[Property:P239]] "resident" and P49/50 qualifiers. You are now interested in the situation at a point in history: Who were the tenants on March 3, 1848?
 
If we can get this done for a house like [[Item:Q14572]] we might be able to show a city at a point in time.

Latest revision as of 12:17, 30 January 2024

FactGrid:Vocabularies

FactGrid data models

Sample Items

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