Ah, but we're not talking about "entry vocabulary", we're talking about 
labelling shelf ranges.

But I agree that the headings for LCC will be less user friendly than 
LCSH.  If there was a way to get LCC-to-LCSH mappings in an easily 
usable way without paying tens of thousands of dollars, that would be 
clever. (I'm not sure there's a way to get them even if you DO pay 
millions of dollars).

So I was suggesting using the LCC headings themselves as a more feasible 
alternate plan, is all. I agree it would be insufficient if we needed an 
"entry vocabulary".  But just for labelling shelf ranges on display, I 
think it's probably not worse than nothing.

Of course, that's up to the implementer, what's better than nothing.

> Quoting Jonathan Rochkind <[log in to unmask]>:
>
>
>> For #2, you can provide a useful topical/subject type heading via 
>> much simpler and more feasible solutions than mapping to LCSH.  For 
>> #2, you don't need a map to LCSH, you need the LCC schedules with 
>> descriptions of what each range of LCC call numbers is for, in 
>> machine-readable form.
>
> I would give the opposite advice. LCC will have fewer pre-composed 
> headings than LCSH at id.loc.gov, and the terminology associated with 
> the numbers in digital LCC will be less user-centric than the LCSH 
> subject headings. cf my most recent blog post:
>
>    http://kcoyle.blogspot.com/2011/10/relativ-index.html
>
> There isn't any entry vocabulary for users other than LCSH -- which 
> isn't really entry vocabulary to LCC and is definitely NOT entry 
> vocabulary to DDC.
>
> kc
>
>>
>>> Thanks everybody!
>>>
>>> this is useful for a couple of purposes
>>> 1) sometimes we have records that have call numbers, but no subject 
>>> headings.
>>> this would be useful to provide those.
>>> 2) i'm thinking of providing a 'subject heading' label to our shelf 
>>> browser --
>>> so users see, in addition to the callnumber -- what the call number 
>>> means.
>>>
>>> thanks again!
>>> rick
>>>
>>>
>>>
>>> On Tue, Oct 18, 2011 at 2:33 PM, Jonathan 
>>> Rochkind<[log in to unmask]>  wrote:
>>>> Anyone know if the OCLC Terminology Service provides such a 
>>>> mapping? The
>>>> Terminology Service may be free if you are already an OCLC cataloging
>>>> member.
>>>>
>>>> At one point I think I saw an absolutely free open access machine 
>>>> readable
>>>> mapping somewhere, that was made at some point in the past and no 
>>>> longer
>>>> updated... but I cant' remember where I saw that even.
>>>>
>>>>> LC's Classification Web provides a mapping from LC classifications to
>>>>> LC subject headings.  There is a manual web interface, used mainly by
>>>>> catalogers, which requires a subscription:
>>>>>     http://classificationweb.net/
>>>>>
>>>>> I don't know if it has any kind of API.
>>>>>
>>>>> Keith
>>>>>
>>>>>
>>>>> On Tue, Oct 18, 2011 at 2:11 PM, Enrico Silterra<[log in to unmask]>
>>>>>  wrote:
>>>>>> is there any way to go from a LC call number,
>>>>>> like DF853  to http://id.loc.gov/authorities/subjects/sh85057107
>>>>>> via some sort of api? opensearch?
>>>>>> thanks,
>>>>>> rick
>>>>>>
>>>>>>
>>>>>>
>>>>>> -- 
>>>>>> Enrico Silterra Software Engineer
>>>>>> 501 Olin Library Cornell University Ithaca NY 14853
>>>>>> Voice: 607-255-6851 Fax:     607-255-6110 E-mail: [log in to unmask]
>>>>>> http://www.library.cornell.edu/dlit
>>>>>> "Out of the crooked timber of humanity no straight thing was ever 
>>>>>> made"
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>>>
>>>
>>
>
>
>