BW
On Jan 24, 2012, at 9:57 PM, "Mattmann, Chris A (388J)" <chris.a.mattm...@jpl.nasa.gov> wrote: > Hi BW, > > On Jan 24, 2012, at 6:32 PM, BW wrote: > >> Where is the centralized repository? CAS? > > It depends: CAS can act as a centralized repository, > or can expose distributed repositories, it really depends > on the specific architectural configuration. Thx. Trying to capture this as an arch. view but it's really more process/policy driven at the external edges. > > Cheers, > Chris > >> >> BW >> >> On Jan 15, 2012, at 6:16 PM, Bruce Barkstrom <brbarkst...@gmail.com> wrote: >> >>> If you're working Earth sciences, there are at least four >>> different dialects for the terms: >>> 1. Global Change Master Directory >>> 2. ESDIS and derivatives >>> 3. ISO 19115-2 and other, related geospatial metadata standards >>> 4. CF Profile of Unidata (probably the most even handed of the lot >>> - albeit with a fair influence from the general circulation modeling >>> community - and therefore somewhat deficient with respect to various >>> observations) >>> >>> There are serious divergences in the vocabularies (GCMD and >>> CF Profile have some parameter names with each dialect having >>> about 1,000 terms and only about five to ten exact matches >>> when all the terms are cast into upper case. The JPSS terms >>> for the upcoming operational system may have more than 100,000 >>> individual items, but their vocabulary probably doesn't match up >>> exactly with the World Meteorological Organization's terms, etc. >>> >>> In short, there's exactly the mishmash one might expect from trying >>> to find the "common language" of isolated Amazonian tribes who >>> suddenly encounter each other on the streets of Rio. >>> >>> Best of luck trying to get to some commonality in describing either >>> data formats or time-space sampling patterns. >>> >>> Bruce B. >>> >>> >>> On Sun, Jan 15, 2012 at 3:12 PM, Mattmann, Chris A (388J) >>> <chris.a.mattm...@jpl.nasa.gov> wrote: >>>> On Jan 15, 2012, at 9:05 AM, Crichton, Daniel J (4231) wrote: >>>> >>>>> Building a solid data architecture requires someone with extensive >>>>> experience. The planetary science data architecture, for example, is an >>>>> international effort with many sub-disciplines. Capturing data compliant >>>>> to that data architecture requires defining a solid, consensus-based model >>>>> and that takes time and it is a community effort. Other efforts aren't as >>>>> rigorous, so I think it depends on the application and use of OODT. In >>>>> some cases, it may be a simple model. >>>> >>>> +1, agreed. >>>> >>>> Cheers, >>>> Chris >>>> >>>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >>>> Chris Mattmann, Ph.D. >>>> Senior Computer Scientist >>>> NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA >>>> Office: 171-266B, Mailstop: 171-246 >>>> Email: chris.a.mattm...@nasa.gov >>>> WWW: http://sunset.usc.edu/~mattmann/ >>>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >>>> Adjunct Assistant Professor, Computer Science Department >>>> University of Southern California, Los Angeles, CA 90089 USA >>>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >>>> > > > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > Chris Mattmann, Ph.D. > Senior Computer Scientist > NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA > Office: 171-266B, Mailstop: 171-246 > Email: chris.a.mattm...@nasa.gov > WWW: http://sunset.usc.edu/~mattmann/ > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > Adjunct Assistant Professor, Computer Science Department > University of Southern California, Los Angeles, CA 90089 USA > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >
