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Subject: Re: [regrep] Presentations and questions : taxonomy vs. classification
Thank you so much Nicholas. "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 > > > > ---------------------------------------------------------------- > > To subscribe or unsubscribe from this elist use the subscription > > manager: <http://lists.oasis-open.org/ob/adm.pl>
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