Re: Cost

On Wed, Feb 10, 2016 at 3:06 PM, Wes Turner <wes.turner@gmail.com> wrote:

> So,
> If CourseOffer is an rdfs:subClassOf [CreativeWork, Offer],
> *if the application expands CourseOffer to e.g. [CreativeWork, Offer]*
> then the record may surface in
> queries including any of rdfs:Class set {CreativeWork, Offer, CourseOffer}.
>


Offer
+seller
+offeredBy   # is this the same as seller to existing aplications with and
without RDFS class inference?


>
> On Wed, Feb 10, 2016 at 3:03 PM, Wes Turner <wes.turner@gmail.com> wrote:
>
>>
>>
>> On Wed, Feb 10, 2016 at 9:19 AM, Phil Barker <phil.barker@hw.ac.uk>
>> wrote:
>>
>>> Hello Alan,
>>> yes, you're absolutely right that cost can be very difficult. At the
>>> same time we don't want an incredibly complex mechanism for saying that
>>> something is FREE (e.g. MOOCs, which I hope are going to be a big target
>>> application) or has a relatively simple cost structure (many other examples)
>>>
>>> Schema's way of setting variable prices is to model these as distinct
>>> instances of a http://schema.org/Offer with different values of
>>> http://schema.org/eligibleCustomerType
>>>
>>> I suppose that a price of "it depends" or "POA" is also an option.
>>>
>>
>> Really an Enumerated attribute for type of course and o would be most
>> helpful for a faceted search.
>>
>> http://schema.org/Offer
>>
>> + eligibleDuration
>> + inventoryLevel
>> + price
>> + priceCurrency
>> + priceSpecification
>> + priceValidUntil
>> + seller <Person, Organization> Supersedes +merchant, +vendor
>>
>>
>>>
>>> Phil
>>>
>>>
>>> On 10/02/2016 14:00, Alan Paull wrote:
>>>
>>>>
>>>> I’ve duplicated the current (10 Feb) use case for refining course
>>>> search by cost below for convenience.
>>>>
>>>> We have a <cost> element in XCRI-CAP, defined as “the cost for
>>>> obtaining access to the presentation”.  It’s part of the XCRI-CAP
>>>> <presentation> element, which is equivalent to what’s already being
>>>> mentioned here as “specific instance of a course being offered” (Learning
>>>> Opportunity Instance in the European MLO model).
>>>>
>>>> As part of our work on XCRI-CAP we investigated how to model ‘cost’ in
>>>> relation to UK HE.  Our conclusion was that it was a very fraught area.
>>>> Most issues were to do with costs varying in relation not only to the mode
>>>> of study and location of study, but also to the specific (detailed)
>>>> circumstances of the individual.  Particular difficulties were raised
>>>> because an individual might be offered a very different price (or free of
>>>> charge) dependent on where they were living (UK / specific country in the
>>>> UK / EU / EEA / RoW), or their own circumstances (dependents / no
>>>> dependents / employed / unemployed / etc), and whether they had access to
>>>> scholarships and bursaries.  Also VAT / No VAT (for EU).  The upshot was
>>>> that the <cost> element in XCRI-CAP is unstructured.  No-one supported the
>>>> idea of putting just a numerical or currency value in there, because
>>>> context was vital.  Current web page entries from UK Universities are very
>>>> varied in content and structure.
>>>>
>>>> For these reasons I suggest we modify requirement c) to:
>>>>
>>>> “must be able to identify text that describes the costs associated with
>>>> studying a specific instance of a course.”
>>>>
>>>> This (I hope) doesn’t suggest a requirement for definitive values in
>>>> relation to what a specific individual might have to pay. So it would be
>>>> possible to have an entry like: “2015-16 fee for UK students was £10,500.
>>>> Fee for 2016-17 academic year not yet determined.”
>>>>
>>>> I would miss out the requirement of cost by mode of study.  Where
>>>> they’re available, they could be included.  Where not available, I suggest
>>>> we don’t put off usage by narrowing the requirement.
>>>>
>>>> For more on XCRI-CAP: http://www.xcri.co.uk (redirects)
>>>>
>>>> use case 1.1 refining course search from UC1 by cost
>>>>
>>>> description: an extension to use case 1, where the searcher is
>>>> concerned about the cost of the course.
>>>>
>>>> note: where a course is offered in different modes of study, e.g. full
>>>> time or part-time, face-to-face or at distance, the cost may vary by mode
>>>>
>>>> requirement p) must be able to identify web pages that describe
>>>> specific instances of a course being offered
>>>>
>>>> requirement c) must be able to identify cost of course in each mode of
>>>> study offered.
>>>>
>>>> Alan Paull
>>>>
>>>> --
>>>>
>>>> Alan Paull
>>>>
>>>> APS Ltd
>>>>
>>>> 80 Fenton Road, Warboys, HUNTINGDON, PE28 2SL, UK
>>>>
>>>> alan@alanpaull.co.uk <mailto:alan@alanpaull.co.uk>
>>>>
>>>> 07977 120886
>>>>
>>>> Skype: alanepaull
>>>>
>>>> http://www.alanpaull.co.uk
>>>>
>>>>
>>> --
>>> Phil Barker           @philbarker
>>> LRMI, Cetis, ICBL     http://people.pjjk.net/phil
>>> Heriot-Watt University
>>>
>>> Workflow: http://www.icbl.hw.ac.uk/~philb/workflow/
>>>
>>>
>>>
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>>> registered under charity number SC000278.
>>>
>>>
>>>
>>
>