Plant prestart
Daily plant and equipment pre-start checks: condition, defects, compliance.
Part of Safety in the register catalog.
- Register ID
plant_prestartUse this name to ask for the register. The API calls it a shelf ID.- Each record is
- An eventSomething that happened at a point in time.
- Status
- AvailableFilled today from connected systems, uploads or public data.
- Data
- OrganisationPrivate to each organisation's own workspace.
- Version
- v1Current version.
Standards
This register holds records these standards and laws ask for. Holding them does not by itself certify compliance.
Connectors
On the roadmap
Systems in the planned connector rollout that can fill this register. Partial means the system holds only some of its fields.
- EROAD
- GeotabPartial
- HammerTech
- MittiPartial
- Sitemate
Fields
20 fields: 5 required, 13 optional, 2 defined by each organisation.
Required
Every record carries these fields.
- external_idText
The source form-result's own identifier, as text.
Example:
PP-2026-8891- source_systemText
Which bound system emitted the row;
ASSIGNARtoday.Example:
ASSIGNAR- occurred_atDate and time
When the prestart was submitted; the date the retention clock runs from.
Example:
2026-07-14T21:30:00Z- assetNumber
The item of plant the prestart is about.
Example:
9301- flagged_countWhole number
How many answers name a fault; the shelf's primary condition signal.
Example:
0
Optional
Present when the source system records them.
- projectNumber
The project the plant was pre-started on that day.
Example:
8101- workerNumber
The worker who submitted the prestart; an anchor, not a declared axis.
Example:
5501- tag_severityWhole number
The green/yellow/red plant tag at its worst on the form.
Example:
1- narrative_countWhole number
How many free-text answers were filled in.
Example:
2- unanswered_countWhole number
How many answerable questions were left blank.
Example:
0- form_idNumber
The source form template identity.
Example:
211- prestart_dateDate
The date the form itself carries, where it differs from submission time.
Example:
2026-07-14- hour_meter_readingDecimal number
The machine's hour-meter reading recorded at the prestart.
Example:
4123.5- inspection_classText
Pre-operational / routine / major inspection.
Example:
pre-operational- asset_registration_numberText
The registration number for plant that must be registered before use.
Example:
QLD-PLT-88210- certifierText
The competent person who performed or certified the prestart.
Example:
Aaron Patel- jurisdictionText
The WHS/examination regime whose interval and retention rule apply.
Example:
AU-QLD-WHS- source_unitsGroup of fields
The source unit each measure arrived in, beside the canonical unit.
Defined by each organisation
Their contents come from the organisation's own forms or systems, so they differ between organisations.
- form_titleText
The tenant's own name for the prestart form the record was captured on; the key the
form_patternsweep matches.Example:
Plant Prestart Checklist- tenant_payloadGroup of fields
The tenant's own prestart questions and answers — check-item results, selectors, comments, the grout/mixer numerics.
Example record
A sample from Bridgeworks Group, Demiton's demonstration company. The values are illustrative; the shape is exactly what the contract describes.
{ "asset": 9301, "asset_registration_number": "QLD-PLT-88210", "certifier": "Aaron Patel", "external_id": "PP-2026-8891", "flagged_count": 0, "form_id": 211, "form_title": "Plant Prestart Checklist", "hour_meter_reading": 4123.5, "inspection_class": "pre-operational", "jurisdiction": "AU-QLD-WHS", "narrative_count": 2, "occurred_at": "2026-07-14T21:30:00Z", "prestart_date": "2026-07-14", "project": 8101, "source_system": "ASSIGNAR", "tag_severity": 1, "unanswered_count": 0, "worker": 5501}Use this contract
The contract is a standard JSON Schema (draft 2020-12) document, so any JSON Schema validator can check a record against it. Keywords starting with x-demiton- add Demiton's own meaning, such as units and requiredness, and validators ignore them.
https://docs.demiton.io/registers/plant_prestart/v1.jsonShow the full JSON Schema
Loading the schema…
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