TetherlessPC3

Tetherless World for the Third Provenance Challenge
type	Research Project
status	active
homepage	http://tw.rpi.edu/wiki/TetherlessPC3/
Management
team	Tetherless World Constellation
investigator	Deborah L. McGuinness
participant	James Michaelis,Li Ding,Rui Huang,Zhenning Shangguan
Tags
tag	OWL,Provenance
relation	Inference Web
Internal

Overview

We are investigating a solution to the 3rd provenance challenge on annotating and integrating provenance metadata for workflow.

facts

with special focus on scientific workflow, we see the following challenges

provenance ontology - what provenance metadata can be captured, e.g. data flow and control flow
provenance metadata generation - how to capture provenance using the general purposed ontology
provenance integration - how to share, link and normalize distributed provenance data
provenance query - how to answer queries on the provenance graph

provenance generation

we build a common OWL ontology based on PML for fully capturing OPM concepts
we review the workflow/control flow of the challenge and establish strategies for capturing what provenance data
- capture data flow
- capture control flow
- capture version of data
we generate provenance metadata with minimal changes on the original workflow source code
- internal injection: inject provenance logging code into source code of workflow logics
- external observation: add code to observe input/output/known-operation-semantics/system-state of workflow processes

provenance integration

we map OPM models generated by other teams to RDF data using our common ontology
we do additional computations (OWL inference, domain heuristics for model alignment) to enrich the mapped RDF data

provenance query

Homepage	http://tw.rpi.edu/wiki/TetherlessPC3/ +
Investigator	Deborah L. McGuinness +
Participant	James Michaelis +, Li Ding +, Rui Huang +, and Zhenning Shangguan +
Relation	Inference Web +
Status	active +
Tag	OWL +, and Provenance +
Team	Tetherless World Constellation +