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Requirements for profiles

From: Karen Coyle <kcoyle@kcoyle.net>
Date: Tue, 14 Nov 2017 19:32:27 -0800
To: "public-dxwg-wg@w3.org" <public-dxwg-wg@w3.org>, Valentine Charles <valentine.charles@europeana.eu>, Antoine Isaac <aisaac@few.vu.nl>
Message-ID: <43a406da-3006-dfe2-332b-60ca595fb86d@kcoyle.net>
All, I'm not sure that this requirement list is complete but it is what
I could come up with in a short time so that we could have something to
discuss. [Note to Antoine and Valentine: please see if I correctly
captured the requirements from your use case.]

I want to mention that I believe there may be more than one definition
of "profile" being used in the use cases. In particular, UC 5.3
(submitted by Ruben) didn't seem to me to be a function of profiles but
of the connection service. There may be other such differences in the
use cases where I'm not sure if the reference is to the profile or to a
specific selection of instance data.

Also, there are some obvious requirements, like being both machine and
human-readable, having identifiers, etc., that we do not have use cases
for. I did a talk at the recent Dublin Core conference that included a
number of requirements of this nature that we may wish to examine.


profiles list valid vocabulary terms for a metadata usage environment (5.37)

profile vocabulary lists may be defined as closed (no other terms are
allowed) or open (other terms are allowed) (5.37)

conceptually, profiles can extend other vocabularies or profiles, or can
be refinements of other vocabularies or profiles (5.37)

profiles can be "cascading", inheriting from other profiles or profile
fragments (discussion at first f2f)

profiles reuse vocabulary terms defined elsewhere (Dublin Core profiles;
no use case)

profiles must be able to define finer-grained semantics for vocabulary
terms that are used (visible in DCAT APs)

profiles must be able to express rules that support data validation
(cardinality, valid values) (5.41)

profiles must be able to express cardinality rules of vocabulary terms

profiles can contain links to detailed validation rules or to validation
applications that can process the profile (5.48)

profiles must be able to support information that can drive data
creation functions, including brief and detailed documentation (5.46)

profiles must be able to express what standards (including creation
rules) the data conforms to (5.43) (5.42)

profiles must support discoverability via search engines (5.40)

profiles must have identifiers that can be used to link the DCAT
description to the relevant profile (seems obvious; no use case)

*Not covered* (because I didn't know what the requirement would be): 5.3
Responses can conform to multiple, modular profiles (by Ruben)


Karen Coyle
kcoyle@kcoyle.net http://kcoyle.net
m: 1-510-435-8234 (Signal)
skype: kcoylenet/+1-510-984-3600
Received on Wednesday, 15 November 2017 03:32:54 UTC

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