Data Readiness Knowledge Base

01

Where it fits and where it does not

Use these four checks before committing implementation time.

Use it when: Chemical safety and regulatory programs that exchange endpoint study summaries across databases, jurisdictions, and IUCLID-based workflows.
Limits: The suite has no single version, and OHT fields are not themselves regulatory data requirements. Exact templates, schemas, picklists, test guidelines, IUCLID release, and jurisdictional profile must be frozen.
Best for: Chemistry and Preclinical and Toxicology and Regulatory and Laboratory teams working across Acquire → Harmonize → Exchange → Learn + reuse.
Maturity: EstablishedSuitable for production assessment. Pin the exact release and any implementation profile.

02

See it in the workflow

This view shows the input, the change the standard introduces, and the resulting output.

InputWhat starts
Chemistry and Preclinical and Toxicology and Regulatory and Laboratory source data, metadata, and local mappings
OECD OHTsWhat changes
Use OECD OHTs as a pinned data model / schema across Acquire → Harmonize → Exchange → Learn + reuse
OutputWhat becomes possible
A handoff the next system or team can validate against the same release

Readiness gateThe suite has no single version, and OHT fields are not themselves regulatory data requirements. Exact templates, schemas, picklists, test guidelines, IUCLID release, and jurisdictional profile must be frozen.

03

A concrete example

A toxicology program pins the applicable OHT documents, XML schemas, picklists, endpoint summaries, IUCLID release, and jurisdictional requirements before exchanging robust study summaries.

Why it matters: Creates structured endpoint and method context for evidence synthesis, while study-summary data can omit raw observations and cannot by itself establish reliability, bias control, or comparability.

04

What it fits with

OHTs commonly align with OECD Test Guidelines and are implemented in IUCLID; SEND addresses a different nonclinical submission layer, while InChI can support structure-derived substance identifiers.

05

Implementation starter

Start with one bounded handoff. Pin, test, and review it before scaling.

Define one handoff, its accountable owner, and the decision OECD OHTs must support.
Pin the exact version and companion artifacts: Living suite · templates and endpoint summaries version independently.
Map one representative input to the required data model / schema artifacts.
Test the result against the canonical source and record every exception.
Preserve the source data, mappings, and review evidence before scaling.

06

Test the main limitation

Risk

The suite has no single version, and OHT fields are not themselves regulatory data requirements. Exact templates, schemas, picklists, test guidelines, IUCLID release, and jurisdictional profile must be frozen.

Test

Run one representative end-to-end pilot and record exactly where OECD OHTs loses context, needs an extension, or depends on another standard.

Risk

Machine-readable output may still be unfit for analysis or ML.

Test

Test the output for missing context, provenance, terminology alignment, time leakage, and the intended downstream decision. Creates structured endpoint and method context for evidence synthesis, while study-summary data can omit raw observations and cannot by itself establish reliability, bias control, or comparability.

07

Official resources

Specifications, diagrams, examples, and guides from the organizations that maintain them.

Primary sourceLiving suite · templates and endpoint summaries version independently
OECD Harmonised Templates
Official publisher or steward guidance for this data model / schema profile.
Publisher
Organisation for Economic Co-operation and Development · ECHA IUCLID implementation
Open official source