# Data gap analysis — Dossier coverage

> Know exactly what your dossier is missing.

Before you can fill a gap you have to find it: the endpoints with no supporting study, and the studies that do not map cleanly to any endpoint. ToxIndex reads a dossier and returns that map, grounded in what is genuinely absent versus already covered elsewhere.

## Finding the holes before a regulator does

A dossier can look complete and still fail a completeness check, because a study sits under the wrong endpoint or an endpoint has nothing behind it at all. Catching that by eye across dozens of endpoints is exactly the kind of work that slips.

Gaps ingests the IUCLID dossier, maps each study to the endpoints it informs, and flags both the unmappable studies and the empty endpoints. Because it reads the Yard warehouse underneath, it can tell a real gap from evidence that already exists elsewhere in the record.

## Key facts
- **IUCLID** — dossiers ingested directly
- **Endpoint** — level mapping of every study
- **60B+** — triples of evidence to check against

## What the analysis returns

### Dossier in, gaps out
Point Gaps at an IUCLID dossier and get back the endpoints with no supporting study, plus the studies that map nowhere.

### Grounded in real evidence
Yard's knowledge graph lets the analysis separate a true gap from data that already exists under another source.

### A route to fill each one
Every flagged endpoint hands straight to read-across or a predictor, so analysis rolls into remediation without a context switch.

## Related platform tools
- [Gaps](https://toxindex.com/platform/gaps.md): Automated data-gap analysis
- [Yard](https://toxindex.com/platform/yard.md): Raw data warehouse
- [ToxJobs](https://toxindex.com/platform/toxjobs.md): Prediction toolkit

## Related solutions
- [REACH registration](https://toxindex.com/solutions/reach-compliance.md): REACH & CLP
- [New chemical assessment](https://toxindex.com/solutions/new-chemical-assessment.md): Novel substances
- [Consultancies](https://toxindex.com/solutions/consultancies.md): Regulatory consulting

## Frequently asked questions

**What does a data-gap analysis return?**

Gaps ingests an IUCLID dossier, maps each study to the endpoints it informs, and flags both the endpoints with no supporting study and the studies that map nowhere.

**How does it avoid flagging false gaps?**

Because it reads the Yard warehouse (60B+ triples of evidence) underneath, it can tell a genuine data gap from evidence that already exists elsewhere in the record.

**What happens to a gap once it is found?**

Every flagged endpoint hands straight to read-across or a predictor, so analysis rolls into remediation without a context switch.

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Canonical page: https://toxindex.com/solutions/data-gap-analysis