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Eco Grid Conference Call Notes 17 Sep 2004

Difference between version 23 and version 1:

At line 1 added 1 line.
+ Jones, Spears, Tao, Servilla, Rajasekar, Zhu, Bowers (came in part way through)
Line 12 was replaced by line 13
- # Update on data query/subset functionality (Tao)
+ # Update on data query/subset functionality (Tao and Spears)
At line 13 added 2 lines.
+ ** Review the 'put' interface via its [WSDL|http://cvs.ecoinformatics.org/cvs/cvsweb.cgi/~checkout~/seek/projects/ecogrid/src/xsd/EcoGridPutInterfaceLevelOne.gwsdl?rev=1.3&content-type=text/xml]
+ ** Review the 'Authentication' interface via its [WSDL|http://cvs.ecoinformatics.org/cvs/cvsweb.cgi/~checkout~/seek/projects/ecogrid/src/xsd/EcoGridAuthInterfaceLevelOne.gwsdl?rev=1.1&content-type=text/xml]
At line 15 added 43 lines.
+ # Skipping certificates agenda item because brunt and murillo absent -- will reschedule, maybe to end of next week (Friday?)
+ # Ecogrid query semantics
+ ** need ontology mapping between standards
+ ** can Sparrow provide the necessary reasoning services?
+ ** probably need to translate metadata instances as well as classes, so may need to populate the reasoner with al of the instance data (e.g., load EML into the reasoner)
+ ** can existing query rewriting systems work? maybe...but probably would need to be customized or extended
+ *** need to discuss with Bertram and Shawn, especially with regards to Sparrow -- this is probably part of SMS layer, but how to deal with instance data (e.g., EML values)
+ ** probably start with just crosswalks, then add instance data later
+ ** implement this as an 'ontology server'
+ *** e.g., takes an EML query in, gives a Darwin Core query back
+ ** Shawn: says we should map to an integrated schema to avoin n^n mappings
+ *** e.g., in ant example paper they map to the ontology
+ # Update on data query/subset functionality (Tao and Spears)
+ ** Rod gave an overview of the use of EML Data Source and cached queries
+ ** Matt: can we use the existing Kepler-side infrastructure to implement EcoGrid-side data query by loading the EML-described sources into a relational db
+ ** Jing: still need the DarwinCore Data source
+ # Update on put interface implementation (Zhu)
+ ** Bing gave overview of put implementation
+ *** Noted that Metacat identifies metadata and data separately while SRB uses same id for both
+ *** Client works, can use to upload
+ *** Still need to know which system you are using so you use the API correctly
+ **** Bing says this can be fixed on the client side
+ *** Reviewed auth interface -- login, logout, genereates sessionid
+ **** Eventually need to move to SSL for all services so that the communication is secure
+ ***** Or use the GSI security layer
+ **** how does this have to change to accomodate certificates?
+ ***** once we have certificates, the ldap user DNs can be shared across systems (e.g., SRB, Metacat)
+ **** Need to modify get and query interfaces to accept sessionId to allow for access to private records
+ ***** need to allow anonymous query for some systems, should anonomous query and get use a different method or pass in a special userid (e.g., "public")
+
+ !!! Action items
+ # Matt will contact Bertram and Shawn about query translation needs, involve other EcoGrid folks
+ ** reread Shawn's 'ant' paper for ideas
+ # Rod will describe (in a bug) and implement a DarwinCore data source
+ # Jing will describe and implement a new multi-node EcoGrid search for Kepler (with resultset integration)
+ # Jing: test and install put and auth interfaces for metacat on ecoinfo2
+ # Modify get and query interfaces to accept sessionId to allow for access to private records
+ ** Jing will enter a bug describing this
+ # Bing will continue registry design and implementation
+ # Mark Servilla will forward info to James and Michelle and they will let us know about a future call to discuss certificates and GSI
+
+ --------------
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