First, I agree with Martynas, with reservations.
> There is already schema:Event, dbpedia:Event and a whole Event ontology (actually just one of them):
> http://linkedevents.org/ontology/

This has been instructive.

It is still important to know the current rules. In LODE, event is 
defined as:
"Definition: "Something that happened," as might be reported in a news 
article or explained by a historian.
An event consists of some temporal and spatial boundaries subjectively 
imposed on the flux of reality or imagination, that we wish to treat as 
an entity for the purposes of making statements about it. In particular, 
we may wish to make statements that relate people, places, or things to 
an event.
Note that, unlike some definitions of "event," this definition does not 
specify that an event involves a change of state, nor does it attempt to 
distinguish events from processes or states."

Event in DCMI is defined as: "Metadata for an event provides descriptive 
information that is the basis for discovery of the purpose, location, 
duration, and responsible agents associated with an event. Examples 
include an exhibition, webcast, conference, workshop, open day, 
performance, battle, trial, wedding, tea party, conflagration." 
(http://purl.org/dc/dcmitype/Event)

There is another event ontology at 
http://motools.sourceforge.net/event/event.html with a definition of: 
"Event - An arbitrary classification of a space/time region, by a 
cognitive agent. An event may have actively participating agents, 
passive factors, products, and a location in space/time." This seems to 
be primarily for "human-inspired events", especially music performances.

In schema.org, event is defined as: "An event happening at a certain 
time and location, such as a concert, lecture, or festival. Ticketing 
information may be added via the 'offers' property. Repeated events may 
be structured as separate Event objects." http://schema.org/Event

The rules for current cataloging practice are in two places. The first, 
http://www.loc.gov/aba/publications/FreeSHM/H0405.pdf is general and 
procedural in nature. The more substantive rules are at 
http://www.loc.gov/aba/publications/FreeSHM/H1592.pdf.

What distinguishes cataloging practice is that they divide events into 
those that can be authors and those that cannot, e.g. the explosion of 
Krakatoa involved no people and cannot author anything. WWII, although 
it involved a lot of people and a lot of organization, also cannot 
author anything, but both are still events. When it comes to festivals, 
exhibitions, tournaments and similar human-gettogethers, these are 
actually special types of corporate bodies and it becomes more difficult 
to determine whether they can author anything. The cataloging rules 
above provide those guidelines and please trust me: it can get very 
complicated.

Therefore, from this short overview, one of the main problems is how the 
different communities define an "event".

It seems that Bibframe is supposed to be for those webmasters out there 
who are making all of these wonderful new tools and who are just 
chomping at the big to get the data that is locked inside our 
bibliographic records so that they can add our data to their tools. 
Right now, there is such a range of definitions for event that I don't 
know how a web master could ever create anything coherent, especially 
adding how it has been used in library catalogs (which is much more 
complex than the other methods). As Martynas asked, is the solution to 
make a whole new ontology? Making a whole new one just means that the IT 
folks will have to sort it out later.

That does not seem to be a solution.

James Weinheimer [log in to unmask]
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