Data provenance and confidence

How Sahel Safe data works

Sahel Safe is designed to show not only an answer, but also its source, freshness, coverage and limitations. Results are location-reference information, not a safety clearance.

Data sources

Sahel Safe may combine official publications, structured datasets, automated services and moderated community reports. Each result should identify its source and source type.

Update frequencies

Update timing depends on the data category. Weather and live conditions expire faster than reference information. Every important result should display its retrieval or publication time.

Verification tiers

Information can be marked official, verified, automated or community reported. These labels describe the evidence pathway; they do not guarantee that conditions remain unchanged.

Confidence levels

Confidence is based on source quality, freshness, geographic precision, agreement between sources and known gaps. Limited confidence must be displayed clearly.

Geographic coverage

Coverage varies by country, city and location. A location can have complete, partial, delayed or unavailable coverage for different data categories.

Known gaps

Missing official feeds, delayed reports, sparse local evidence and conflicting sources must be disclosed instead of being hidden behind a single status.

Corrections and moderation

Users and organizations can report inaccurate information. Corrections should be reviewed, recorded and reflected without erasing the history of significant changes.

Source conflicts

When credible sources disagree, Sahel Safe should display the conflict, explain the difference and avoid presenting one uncertain answer as settled fact.

Historical retention

Historical information can provide context, but it must be separated from current conditions and labelled with its original date and source.