Re: [regrep] Presentations and questions : taxonomy vs. classification

[Chiusano Joseph <chiusano_joseph@bah.com>]

Thanks Monica.  Here is a URL on what Monica is describing (RDDL,
Resource Directory Description Language):

http://www.rddl.org/  - Excerpts below

The following URL is a recent discussion on the W3C TAG regarding RDDL:
http://lists.w3.org/Archives/Public/www-tag/2002Nov/0147.html

EXCERPTS FROM http://www.rddl.org/:

A RDDL document, called a Resource Directory, provides a package of
information about some target, including: 

- Human-readable descriptive material about the target. 

- A directory of individual resources related to the target, each
directory entry containing descriptive material and linked to the
resource in question. 

- The targets which RDDL was designed to describe are XML Namespaces. 
Examples of "individual related resources" include schemas, stylesheets,
and executable code designed to process markup from some namespace. A
Resource Directory is designed to be suitable for service as the body of
an entity returned by dereferencing a URI serving as an XML Namespace
name. 

Monica Martin wrote:
> 
> *       How to register namespaces?
> 
> On this item, there was interest and discussion with Boeing (believe
> Erik Still) and NIST. I believe they were discussing URIs that point to
> a resource file that is like metadata for a namespace.   This may
> overlap this question and the other ones associated with a URI (which
> may be a broader question that the RegistryObject and the HTTP
> capabilities discussed to this point).
> 
> I think we have multiple questions here.
> 
> Monica
> 
> -----Original Message-----
> From: Breininger, Kathryn R [mailto:kathryn.r.breininger@boeing.com]
> Sent: Tuesday, January 28, 2003 2:20 PM
> To: Farrukh Najmi; Berry, Nicholas F
> Cc: Chiusano Joseph; ebXML Regrep (E-mail); sang.shin@sun.com;
> weida@apelon.com; akotok@disa.org; lane.derek@epa.gov
> Subject: RE: [regrep] Presentations and questions : taxonomy vs.
> classification
> 
> Does anyone have any other comments on the other questions:
> 
>  Use of packages, how to organize items in a registry?
> *       Taxonomies and classifications, what's the difference?
> *       OAIS: integrity of objects over time
> *       How to integrate 11179 and ebXML
> *       Persistent locations in registries (DRIve)
> *       How to register namespaces?
> *       Multi-lingual capabilities
> *       URI for RegistryObject
> 
> The third question (Integrity of objects over time) was asked
> specifically by Derek Lane, from EPA.  More detail on his question
> follows:
> 
> 1. Comparison between the two concepts ebXML Reg/Rep with OAIS
> [Reference Model for an Open Archival Information System (OAIS)]
> 2. Capability to ensure integrity of objects over time
> 3. If a checksum may be required to ensure that the object is what was
> submitted over time (mentioned by Lane in discussion).
> 
> Please respond with answers on the third question (details 1-3 above)
> directly to the list and Derek Lane at lane.derek@epa.gov  The link to
> OAIS is at: http://ssdoo.gsfc.nasa.gov/nost/isoas/overview.html
> 
> Please also feel free to discuss each of the other questions above on
> the list.  This is a good opportunity to address some of these
> questions, and possibly consider for version 4.0 or as topics of best
> practice papers!
> 
> -----Original Message-----
> From: Farrukh Najmi [mailto:farrukh.najmi@sun.com]
> Sent: Tuesday, January 28, 2003 12:52 PM
> To: Berry, Nicholas F
> Cc: Chiusano Joseph; ebXML Regrep (E-mail); sang.shin@sun.com;
> weida@apelon.com; akotok@disa.org; lane.derek@epa.gov
> Subject: Re: [regrep] Presentations and questions : taxonomy vs.
> classification
> 
> In my experience:
> 
> Taxonomy and Ontology are different levels of sophistication along the
> ontology continuum as defined by Deborak McGuiness in her paper. WIll
> post link when I find it.
> 
> Classification on the other hand is the use of taxonomy/ontology to
> classify things. So taxonomy / ontology / classification schemes / topic
> 
> maps etc. are nouns while an act of Classification is a verb involving
> some subject and the taxonomy. Similarly an instance of a Classification
> 
> is like an adjective that decsribes a subject.
> 
> Berry, Nicholas F wrote:
> 
> >Joe,
> >
> >With all due respect, taxonomies and classification systems are an
> order of magnitude apart.  Here are some simplistic definitions.  They
> progress from the actual to the theoretical in this manner:
> >
> >Taxonomy: a hierarchical arrangement of topics that imposes topical
> structure on information in a specific body of knowledge.
> >
> >Classification (system):  the process of dividing objects or concepts
> into logically hierarchical classes, subclasses, and sub-subclasses
> based on the characteristics (attributes) they have in common and those
> that distinguish them.   Note, this is the model upon which individual
> taxonomies may be built.
> >
> >Ontology:  An ontology is a knowledge representation system which
> presents the key concepts and relationships relevant to a body of
> knowledge. Ontologies represent a conceptual consensus of topics
> (concepts) and their related attributes within a community of interest
> (domain).   They are based upon Formal Logic.  Note, this is a
> theoretical construct which can be used to build classification systems.
> >
> >
> >Sincerely,
> >Nicholas Berry
> >Librarian
> >Boeing XML Registry
> >
> >-----Original Message-----
> >From: Chiusano Joseph [mailto:chiusano_joseph@bah.com]
> >Sent: Tuesday, January 28, 2003 11:43 AM
> >To: Breininger, Kathryn R
> >Cc: ebXML Regrep (E-mail); sang.shin@sun.com; weida@apelon.com;
> >akotok@disa.org; lane.derek@epa.gov
> >Subject: Re: [regrep] Presentations and questions
> >
> >
> >Please see comments below:
> >
> >
> >
> >>*       Taxonomies and classifications, what's the difference?
> >>
> >>
> >
> >From my experience, these terms are used interchangeably.  If there is
> a
> >difference between the two, I believe it is very subtle.
> >
> >
> >
> >>*       OAIS: integrity of objects over time
> >>
> >>
> >
> >I believe this can be addressed by our existing security features
> >(Suresh, please correct me if I am wrong!).  While digital signatures
> >help ensure that the message is not corrupted during transfer, access
> >control policies help ensure that objects are not altered by
> >unauthorized parties while in the registry.  Beyond that, I believe it
> >would be an implementation issue - that is, ensuring that objects do
> not
> >become "corrupted" at the operating system level.  Each OS will have
> its
> >own unique way of ensuring this.
> >
> >
> >
> >>*       How to integrate 11179 and ebXML
> >>
> >>
> >
> >If this question is at the specification level, there is already
> >integration between the two (our classification and registration
> >concepts are influenced by 11179).  If it addresses the interaction
> >between an 11179 registry (such as EPA's EDR) and an 11179 registry,
> >then that interaction can occur by implementing a "bridge mechanism"
> >(gateway) between the 2 registries that maps the metadata between the
> >registries, and fills in any gaps as feasibly as possible.  Thus,
> >objects that are registered in an 11179 registry can be propagated to
> an
> >ebXML registry (real-time or batch), and vice-versa.  Since the EDR is
> >data element-based, the ebXML-to-11179 interplay would involve a
> gateway
> >accessing a newly registered XML Schema (for instance) from the ebXML
> >registry, "parsing" it into its data elements, and automatically
> >registering each of the elements (if not already registered) in the
> >EDR.  Additionally, there could be a validation that ensures that all
> >elements used in a submitted schema are already registered in EDR - and
> >if an element is found to be "in violation", the schema would not be
> >able to be registered in the ebXML registry.  If schemas are added to
> >the EDR, the EDR-registered schemas could be propagated to the ebXML
> >registry, and any gaps in metadata could be assigned default values
> >along the way.
> >
> >There are many other possibilities - these are just a few ideas that
> >came to me.
> >
> >
> >
> >>*       How to register namespaces?
> >>
> >>
> >
> >This capability does not yet exist - I hope we can add it in V4.  Now
> >that the content management functionality is in V3, it is possible to
> >drill down to the more granular level (elements, attributes, etc.), and
> >we will now be able to recognize things such as the namespace with
> which
> >an XML artifact is associated.  The registration of namespaces was part
> >of the Namespace Management function I proposed for V3
> >(http://lists.oasis-open.org/archives/regrep/200201/msg00061.html -
> >exactly one year ago today!) - but we couldn't include it in V3 because
> >it was dependent on the content management functionality.
> >
> >Kind Regards,
> >Joe
> >
> >"Breininger, Kathryn R" wrote:
> >
> >
> >>The overview presentation I gave and the tutorial presentation and
> case studies Monica presented are now posted on the ebXML Registry home
> page under the "Documents" section, in a subsection titled
> "Presentations" http://www.oasis-open.org/committees/regrep/#documents .
> In addition, here are the questions that were raised during the panel
> discussion.
> >>
> >>*       Use of packages, how to organize items in a registry?
> >>*       Taxonomies and classifications, what's the difference?
> >>*       OAIS: integrity of objects over time
> >>*       How to integrate 11179 and ebXML
> >>*       Persistent locations in registries (DRIve)
> >>*       How to register namespaces?
> >>*       Multi-lingual capabilities
> >>*       URI for RegistryObject
> >>
> >>The third question (Integrity of objects over time) was asked
> specifically by Derek Lane, from EPA.  More detail on his question
> follows:
> >>
> >>1. Comparison between the two concepts ebXML Reg/Rep with OAIS
> [Reference Model for an Open Archival Information System (OAIS)]
> >>2. Capability to ensure integrity of objects over time
> >>3. If a checksum may be required to ensure that the object is what was
> submitted over time (mentioned by Lane in discussion).
> >>
> >>Please respond with answers on the third question (details 1-3 above)
> directly to the list and Derek Lane at lane.derek@epa.gov  The link to
> OAIS is at: http://ssdoo.gsfc.nasa.gov/nost/isoas/overview.html
> >>
> >>Please also feel free to discuss each of the other questions above on
> the list.  This is a good opportunity to address some of these
> questions, and possibly consider for version 4.0 or as topics of best
> practice papers!
> >>
> >>Kathryn
> >>
> >>Kathryn Breininger
> >>CENTRAL Project Manager
> >>Emerging Technologies
> >>Boeing Library Services
> >>
> >>425-965-0182 phone
> >>425-237-3491 fax
> >>kathryn.r.breininger@boeing.com
> >>
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> >>
> >
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> >
> 
> --
> Regards,
> Farrukh
> 
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