wiki:Historical/KarenNotes
Last modified 14 years ago Last modified on 10/03/05 12:35:34

Karen's Historical Notes

The link to Karen's notes is throwing a server error, so here's what I got from Archive.org's Wayback Machine.

-Joe

2002-05-16

Rick and I talked about on what level we should describe data: e.g., a
single data set or a collection of data set.

Different data archives organize their data differently. The
searchable unit can be either a single FITS data set or a collection
of them.

One possible senario is to describe data at a level searchable by its
archive, with the archive specific information encaptulated as a field
in the XML meta-data desription to facilitate query
translation. Alternatively, the XML meta-data description can
incorporate the organizational structure of different data archives.

2002-05-22

Report on DM from NVO project

UML object-oriented data modeling language

SOAP vs XML-RPC

service model: 
  resource registration
  resource discovery

usage scenario
 100 questions for the NVO

2002-05-23

GridPP the grid for uk particle physics, useful links to recommended
readings

AML (astromical markup language) Damien Guillaume

Level of service registration:
- entire data archive
- individual data set

What is the pros and cons of either approach? -- plan to read Ninja
paper

2002-05-24

What can a data archive do? 
- storage
- basic data search depending on database organization
- data analysis? require computing resources
the first two items already exist. the last item may not.

from the original proposal: 
http://sun.stanford.edu/~rick/propose/vso
----------------------------------------------------------------------
data archive
- geographically distributed
- diversely organized
- provide individually tailored access services

data interoperability: translation among
- data descriptions 
- data format
-> determine the semantics of XML representation

access interoperability: translation among
- different search engines
-> reformulate XML search into source-specific search

----------------------------------------------------------------------
The NVO approach:
ask some questions and see what we need to solve these problems 
-> identify service units, perhaps also data models.


Ninja
Service Discover Service:
hierarchical structure

Related:
query distributed video database 

Fri, 24 May 2002 about 11 AM