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RE: Use-Cases and call for help to add descriptions and scenarios.

From: Steve Battle <steve.battle@sysemia.co.uk>
Date: Wed, 3 Oct 2012 16:39:06 +0100
To: 'Raúl García Castro' <rgarcia@fi.upm.es>
Cc: <public-ldp-wg@w3.org>, "'Steve K Speicher'" <sspeiche@us.ibm.com>
Message-ID: <000f01cda17d$3b5cbdd0$b2163970$@sysemia.co.uk>
Thanks for the comments and suggestions Raúl,
...
> Or, another option, is to use the same URI in the GET and in the
> representation, as in UC-BPC1, and have the case of different URIs as an
> alternative scenario.

I think this is the best option. I'll make the appropriate changes.

For the scenario where the URIs do differ, do you have any thoughts on
whether POWDER would be a good approach to making the relationship between
the non-information and information resources explicit?

e.g. <http://example.com/people/alice> wdrs:describedby
<http://example.com/people/alice.rdf>

Steve.

--
Steve Battle
Semantic Engineer

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> -----Original Message-----
> From: Raúl García Castro [mailto:rgarcia@fi.upm.es]
> Sent: 03 October 2012 09:30
> To: steve.battle@sysemia.co.uk
> Cc: public-ldp-wg@w3.org; Steve K Speicher
> Subject: Re: Use-Cases and call for help to add descriptions and
scenarios.
> 
> El 02/10/12 22:12, steve.battle@sysemia.co.uk escribió:
> > I've completed the first pass through the user stories and the LBP 1.0
> document to create an initial set of use-cases - not much more than
headings
> for the most part
> <http://www.w3.org/2012/ldp/wiki/Use_Cases_And_Requirements>. Each
> of these now needs to be described in more detail with example concrete
> scenarios (which may later be developed into test cases). See UC-BPR1 as
an
> example. I've included preliminary issues below for initial comment before
> adding to the issues list, and invite anyone who wants to chip in with
detail
> on any of these use-cases to simply let me know then edit the wiki
directly.
> >
> > Some user-stories raise issues which are currently out of scope
(versioning,
> combined POST of binary+RDF) that will not been captured as use-cases
> unless they are deemed in-scope by the group. The aim is for this document
> to provide clarification for the current in-scope features.
> >
> > More work needs to be done on non-functional requirements to satisfy
> the latter half of the "Use Cases and Requirements" title, but that's for
> another day.
> >
> > I hope to have the full descriptions and scenarios in place for next
Monday,
> so the more hands the merrier.
> >
> >
> > UC-BPR1: Retrieve RDF representation of a resource
> > 	• Are non-resolvable non-information resources supported, and are
> they redirected to BPRs?
> > 	• Is Last-Modified returned in the entity header?
> >
> > UC-BPR2: Update existing resource
> > 	• Should the basic profile recommend at least one patch format, so
> > that we are able to develop concrete examples and test-cases; for
> > example the Talis Changeset
> > <http://docs.api.talis.com/getting-started/changesets>
> >
> > UC-BPR3: Determine if a resource has changed
> > 	• Can the Last-Modified date be used in addition to the entity tag?
> >
> > UC-BPR4: Delete resource
> >
> > UC-BPR5: Create resource
> >
> > UC-BPC1: List resources within a container
> > 	• The member resources may include non-information resources.
> >
> > UC-BPC2: Create resource within a container
> > 	• How does the created resource relate to the RDF description? Does
> the document base have the same referent as the created resource?
> > 	• Should POST support a user supplied local-name 'hint', to support
> more human-readable URIs?
> >
> > UC-BPC3: Retrieve non-member properties of a container
> >
> > UC-BPC4: Add existing resource or container to a container
> > 	• According to the Linked Data Basic Profile 1.0, PUT and PATCH
> should not be used:- "BPC servers should not allow HTTP PUT to update a
> BPC’s members" and should only use "HTTP PATCH as the preferred method
> for updating BPC non-membership properties." See ISSUE-7.
> > 	• As BPCs as noted as being potentially large memberships, sending a
> whole, updated BPC after changes is not practical. See ISSUE-7.
> >
> > UC-BPC5: Update container non-membership properties
> >
> > UC-BPC6: Determine if a container has changed
> >
> > UC-BPC7: Delete a container
> > 	• Where BPR's are managed by a container, they may be deleted
> along with the container. See ISSUE-7, 'The doc talks about the "the BPC
that
> was used to create it [BPR]"
> > (5.6.2) and "should remove it from any other containers..." This means
the
> creating container is distinguished and needs to manage the BPRs is
creates
> separately from those it did not.'
> >
> > UC-BPC8: Remove a resource from a container without deleting it
> 
> Hi Steve,
> 
> I have a comment on the example in the Primary Scenario of UC-BPR-1.
> 
> While I understand that the URI of the GET can be different of the URI in
the
> returned representation of the BPR, I think that the example needs some
> clarification explaining that internally the server relates alice.rdf with
alice.
> 
> For example, the scenario would be the same if the client makes GET
> http://example.com/people/one.rdf HTTP/1.1
> 
> And in this case it should be stated that, for the server, one.rdf
corresponds
> to alice and two.rdf corresponds to bob.
> 
> Or, another option, is to use the same URI in the GET and in the
> representation, as in UC-BPC1, and have the case of different URIs as an
> alternative scenario.
> 
> Kind regards,
> 
> --
> 
> Dr. Raúl García Castro
> http://delicias.dia.fi.upm.es/~rgarcia/
> 
> Ontology Engineering Group
> Departamento de Inteligencia Artificial
> Universidad Politécnica de Madrid
> Campus de Montegancedo, s/n - Boadilla del Monte - 28660 Madrid
> Phone: +34 91 336 36 70 - Fax: +34 91 352 48 19
Received on Wednesday, 3 October 2012 15:39:41 UTC

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