Farm plot data is subject to several tests under the Farm Plot Data Validation Methodology, including using forest mapping data from Space Intelligence along with protected agricultural area information and basic data consistency and reasonability tests, and checks for deforestation and protected area proximity and overlaps. All required data fields must be supplied. Where farm plot data fails any test, that farm plot may not be used as an eligible production plot for any product consignment traceability. Test failures may be challenged by a user if the farm data is believed to be compliant. In in case of upload errors, the data can be corrected and re-uploaded. Some farm plot data tests (e.g. “Farm is extremely large”) have reasonability thresholds which may vary by country.
ICE CoT Farm Plot Data Validation Methodology test methods and thresholds are subject to continuous review and may be updated, removed or added to.
Current tests include:
Basic geometry tests for polygons:
- Farm has too few boundary vertices
- Farm has self-intersecting boundary segments
- Farm plot polygon contains holes
- Farm plot polygon is not closed
Deforestation, protected area and plot size tests:
- Farm overlaps with deforestation
- Farm overlaps with forest
- Farm overlaps with protected area
- Farm plot is recorded as a geopoint with estimated size greater than 4ha
- Geopoint too close to deforestation
Reasonability tests:
- Farmer has implausibly high number of farms
- Farm plot is distant from farm plots with the same Farmer ID
- Farm plot mapping date is far in the past
- Farm plot overlaps with other farm plot(s)
- Farm plot is duplicated with same Farmer ID
- Farm plot is duplicated with different Farmer ID
- Farm plot has a very unusual shape
- Farm plot boundary has spikes
- Farm plot is extremely large
- Farm plot is outside of country boundary
- Farm plot overlaps built-up area
- Farm plot overlaps water body
- Farm plot location time-series mismatch
- Inconsistent farmer data