TWeD Talk: PROV and OPeNDAPApril 11, 2014
There's always something happening on Wednesday evenings in the Tetherless World!

TWeD Talk, Wednesday, April 16, 2014, 7pm ET, Winslow Building on the RPI Campus

Please join us as TWC Ph.D. student Tim Lebo leads us in an interesting discussion of the challenges of adding provenance to deployed systems, using his current work extending OpeNDAP with PROV!

ABSTRACT: Adding provenance to existing systems can benefit users, but comes at an expense that may be difficult for some to justify. This trade-off can be overcome by increasing the value of provenance, by decreasing the cost to add it - or by doing both.

This talk discusses a contribution for each. First, we develop further the W3C PROV pingback technique so that it may reach its potential to interconnect provenance records that would traditionally sit in isolation, thus increasing their value. Second, we reduce the expense to publish the provenance of existing host systems by using minimal coupling to the Prizms Linked Data platform. Using an Earth Sciences scenario and the OPeNDAP data transport architecture as an example host system, we investigate how PROV pingback could work in practice, demonstrate its potential, and identify outstanding issues that must be addressed before it can be widely adopted.