Prov and real things
16
PROV and Real Things LAND AND WATER Simon J D Cox & Nicholas J Car X December 2015
Transcript of Prov and real things
PROV and Real Things
LAND AND WATER
Simon J D Cox & Nicholas J Car X December 2015
PROV and real things | Cox & Car
The problem
preparation workflow on a specimen’s journey from collection to analysis is complex, and variable
its description must be available in order to evaluate or reproduce observations
2 |
PROV and real things | Cox & Car
Real workflows
3 |
PROV and real things | Cox & Car
Proposal:
1. Describe specimen preparation using a generic process model (i.e. input-process-output)
2. Use W3C PROV as the generic process model
4 |
PROV and real things | Cox & Car
ISO 19156 Specimen model
Specimen is a kind of Sampling Feature• [0..*] Preparation Steps
Issues:• Can’t tie the
predecessor/successor to a preparation step
• UML/XML only
SF_Specimen
+ currentLocation: Location [0..1]+ materialClass: GenericName+ samplingLocation: GM_Object [0..1]+ samplingMethod: SF_Process [0..1]+ samplingTime: TM_Object+ size: Measure [0..1]+ specimenType: GenericName [0..1]
SF_SamplingFeature
+ lineage: LI_Lineage [0..1]+ parameter: NamedValue [0..*]
Location
+ geometryLocation: GM_Object+ nameLocation: EX_GeographicDescription
GFI_Feature
SamplingFeatureComplex
+ role: GenericName
PreparationStep
+ processOperator: CI_ResponsibleParty [0..1]+ time: TM_Object
SF_Process
+processingDetails
0..*
Intention
+sampledFeature 1..*
0..*
+relatedSamplingFeature0..*
5 |
ISO 19156:2011 Geographic Information – Observations and measurements (S J D Cox, Ed.)
PROV and real things | Cox & Car
Specimen model in sam-lite
6 |
S J D Cox, Ontology for observations and sampling features, with alignments to existing models, Sem. Web (in press)
PROV and real things | Cox & Car
What is PROV?
Core classes: - Entity
- thing of interest (‘endurant’)
- Activity - transformation event
(‘occurrent’)- Agent
- responsible party or process
7 |
T. Lebo, S. Sahoo, D.L. McGuinness, PROV-O: The PROV Ontology, (2013). http://www.w3.org/TR/prov-o/
PROV and real things | Cox & Car
PROV applications
The entities of interest are usually • Datasets• Publications, papers, reports, products
i.e. information objects
How about the ‘internet of things’?
8 |
PROV and real things | Cox & Car
Specimen PROV mapping
Specimen sub-class-of prov:Entity .Process sub-class-of prov:Agent .Preparation-step sub-class-of prov:Activity .
Specimen is a real thing!
9 |
PROV and real things | Cox & Car
Example: carbonate analysis
10 |
Entities: specimens, data, reports
Agents: people, machines
Activities: preparation-steps, observations
PROV and real things | Cox & Car
Example: insect taxonomy
11 |
Entities: specimens, data, reports
Agents: people, machines
Activities: preparation-steps, observations
PROV and real things | Cox & Car
URIs for agents some ‘vocabularies’ required
• People, including functional positions (‘the lab technician at the time’)
• Machines, other pieces of kit
• URIs for specimens – see IGSN
12 |
PROV and real things | Cox & Car
Elaborations
13 |
These examples use only ‘core’ PROV:
qualifiedInfluence properties enable recording of more detail
PROV and real things | Cox & Car
Provenance vs provenance
Provenance in GLAM world = chain-of-custody of non-reproducible things
To verify identity, but also important for assay data, drug-testing, forensics
Provenance in data world = transformations of reproducible things
Provenance in the world of specimens = transformations of non-reproducible things ….?
14 |
PROV and real things | Cox & Car
Summary
• Original application of PROV to real things• Core PROV model capable of capturing specimen prep & analysis • Specialization might make it stronger, but little needed • Bringing ‘data’ provenance home to the GLAM application …
15 |
Land and WaterSimon Cox Research Scientistt +61 3 9545 2365e [email protected] www.csiro.au/lorem
Geoscience AustraliaNick CarPresenter Titlet +61 2 9123 4567e [email protected] www.csiro.au/lorem
LAND AND WATER
Thank you
