Demiton · Schema

variations contract v1

Approved contract variations: scope change, value and approval status.

CompanyConstructionCivil EngineeringProject ManagementComplianceMCPArtificial IntelligenceOpen Contracting

Properties

Name	Type	Description
notes	string	Free text (register)
amount	number	Agreed amount (register)
client	string	Client named on the advice
status	string	Register lifecycle state
pca_ref	string	Variation reference on the advice form; the per-advice supersede discriminator
subject	string	Subject line of the advice
summary	string	Engine-generated human summary folding the parsed keys
currency	currency	the currency of every amount on this record (`amount`, `amount_ex_gst` and each line's amount), an ISO 4217 alpha-3 code as the document states it. A record with no currency has no usable amount.
doc_kind	string	Classification of the source artefact
av_number	integer	Per-project variation number (register)
created_at	string	Creation timestamp (register)
line_items	array	The priced lines of the advice
updated_at	string	Last-update timestamp (register)
approved_by	string	Name of the approver (register)
contract_no	string	Client contract number on the advice
date_agreed	string	Date the variation was agreed (register)
description	string	Free-text variation description (register)
_source_path	string	Source document path
bc_reference	string	Reference returned when the variation is pushed to the external system
document_ref	string	Document reference (register)
amount_ex_gst	number	Total ex-GST amount of the variation
pricing_basis	string	Which price option carried the amount
_source_web_url	string	Source web URL for the interactive AI-Search path
submission_date	string	Date the advice was submitted to the client, as printed on the form; the day its notice window runs from
time_impact_days	number	Day count the variation requires
_source_file_name	string	Source document filename
acceptance_status	string	Whether the client accepted the advice
created_by_user_id	integer	Identity of the creating user (register)

View JSON Schema on GitHub

JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://docs.demiton.io/registers/variations/v1.json",
  "title": "variations contract v1",
  "type": "object",
  "required": [
    "_source_file_name",
    "_source_path",
    "acceptance_status",
    "doc_kind",
    "line_items",
    "pca_ref"
  ],
  "properties": {
    "notes": {
      "type": "string",
      "description": "Free text (register)",
      "x-demiton-requiredness": "optional"
    },
    "amount": {
      "type": "number",
      "description": "Agreed amount (register)",
      "x-demiton-requiredness": "optional"
    },
    "client": {
      "type": "string",
      "description": "Client named on the advice",
      "x-demiton-requiredness": "optional"
    },
    "status": {
      "type": "string",
      "description": "Register lifecycle state",
      "x-demiton-requiredness": "optional"
    },
    "pca_ref": {
      "type": "string",
      "description": "Variation reference on the advice form; the per-advice supersede discriminator",
      "x-demiton-requiredness": "required"
    },
    "subject": {
      "type": "string",
      "description": "Subject line of the advice",
      "x-demiton-requiredness": "optional"
    },
    "summary": {
      "type": "string",
      "description": "Engine-generated human summary folding the parsed keys",
      "x-demiton-requiredness": "optional"
    },
    "currency": {
      "type": "currency",
      "description": "the currency of every amount on this record (`amount`, `amount_ex_gst` and each line's amount), an ISO 4217 alpha-3 code as the document states it. A record with no currency has no usable amount.",
      "x-demiton-requiredness": "optional"
    },
    "doc_kind": {
      "type": "string",
      "description": "Classification of the source artefact",
      "x-demiton-requiredness": "required"
    },
    "av_number": {
      "type": "integer",
      "description": "Per-project variation number (register)",
      "x-demiton-requiredness": "optional"
    },
    "created_at": {
      "type": "string",
      "description": "Creation timestamp (register)",
      "x-demiton-requiredness": "optional",
      "format": "date-time",
      "x-demiton-type": "datetime"
    },
    "line_items": {
      "type": "array",
      "description": "The priced lines of the advice",
      "x-demiton-requiredness": "required",
      "x-demiton-unit": "— (numbers as stated)"
    },
    "updated_at": {
      "type": "string",
      "description": "Last-update timestamp (register)",
      "x-demiton-requiredness": "optional",
      "format": "date-time",
      "x-demiton-type": "datetime"
    },
    "approved_by": {
      "type": "string",
      "description": "Name of the approver (register)",
      "x-demiton-requiredness": "optional"
    },
    "contract_no": {
      "type": "string",
      "description": "Client contract number on the advice",
      "x-demiton-requiredness": "optional"
    },
    "date_agreed": {
      "type": "string",
      "description": "Date the variation was agreed (register)",
      "x-demiton-requiredness": "optional",
      "format": "date",
      "x-demiton-type": "date"
    },
    "description": {
      "type": "string",
      "description": "Free-text variation description (register)",
      "x-demiton-requiredness": "optional"
    },
    "_source_path": {
      "type": "string",
      "description": "Source document path",
      "x-demiton-requiredness": "required"
    },
    "bc_reference": {
      "type": "string",
      "description": "Reference returned when the variation is pushed to the external system",
      "x-demiton-requiredness": "optional"
    },
    "document_ref": {
      "type": "string",
      "description": "Document reference (register)",
      "x-demiton-requiredness": "optional"
    },
    "amount_ex_gst": {
      "type": "number",
      "description": "Total ex-GST amount of the variation",
      "x-demiton-requiredness": "optional"
    },
    "pricing_basis": {
      "type": "string",
      "description": "Which price option carried the amount",
      "x-demiton-requiredness": "optional"
    },
    "_source_web_url": {
      "type": "string",
      "description": "Source web URL for the interactive AI-Search path",
      "x-demiton-requiredness": "optional"
    },
    "submission_date": {
      "type": "string",
      "description": "Date the advice was submitted to the client, as printed on the form; the day its notice window runs from",
      "x-demiton-requiredness": "optional",
      "format": "date",
      "x-demiton-type": "date"
    },
    "time_impact_days": {
      "type": "number",
      "description": "Day count the variation requires",
      "x-demiton-requiredness": "optional",
      "x-demiton-unit": "days"
    },
    "_source_file_name": {
      "type": "string",
      "description": "Source document filename",
      "x-demiton-requiredness": "required"
    },
    "acceptance_status": {
      "type": "string",
      "description": "Whether the client accepted the advice",
      "x-demiton-requiredness": "required"
    },
    "created_by_user_id": {
      "type": "integer",
      "description": "Identity of the creating user (register)",
      "x-demiton-requiredness": "optional"
    }
  },
  "x-demiton-register-type": "variations",
  "x-demiton-contract-version": "1.2.1",
  "x-demiton-store": "tenant",
  "x-demiton-axes": [],
  "x-demiton-measures": [],
  "x-demiton-provenance": {
    "standards": [
      {
        "code": "AS 2124-1992",
        "title": "General Conditions of Contract (superseded)",
        "access": "paywalled_secondary",
        "clause": "Annexure Part A",
        "region": "Australia",
        "edition": "1992",
        "checked_on": "2026-09-14"
      },
      {
        "code": "AS 4000-1997",
        "title": "General Conditions of Contract (superseded edition, still in use)",
        "access": "paywalled_secondary",
        "region": "Australia",
        "edition": "1997",
        "checked_on": "2026-09-14"
      },
      {
        "code": "AS 4000:2025",
        "title": "General Conditions of Contract (construct only)",
        "access": "paywalled_secondary",
        "clause": "cl 20 (per commentary)",
        "region": "Australia",
        "edition": "2025",
        "checked_on": "2026-09-14"
      },
      {
        "code": "AS 4902-2000",
        "title": "General Conditions of Contract for Design and Construct",
        "access": "paywalled_secondary",
        "region": "Australia",
        "edition": "2000",
        "checked_on": "2026-09-14"
      },
      {
        "code": "AU SoP Acts",
        "title": "Australian state and territory Security of Payment Acts (NSW 1999, QLD 2017, VIC 2002, WA 2021, SA 2009, TAS 2009, ACT 2009, NT 2004)",
        "access": "public_summary",
        "region": "Australia",
        "edition": "various",
        "checked_on": "2026-09-14"
      },
      {
        "code": "VIC BCISP Act 2002",
        "title": "Building and Construction Industry Security of Payment Act 2002 (Vic), as amended from 15 Apr 2026",
        "access": "public_summary",
        "clause": "s 4(1) (per commentary)",
        "region": "Australia",
        "edition": "2002 as amended 15 Apr 2026",
        "checked_on": "2026-09-14"
      },
      {
        "code": "WA BCISP Act 2021",
        "title": "Building and Construction Industry (Security of Payment) Act 2021 (WA)",
        "access": "full_text_verified",
        "region": "Australia",
        "edition": "2021",
        "checked_on": "2026-09-14"
      },
      {
        "code": "Directive 2014/24/EU",
        "title": "Directive 2014/24/EU on public procurement",
        "access": "full_text_verified",
        "clause": "Art. 72",
        "region": "European Union",
        "edition": "consolidated",
        "checked_on": "2026-09-14"
      },
      {
        "code": "NZ CCA 2002",
        "title": "Construction Contracts Act 2002 (NZ), 2002 No 46, as amended 2015 and 2023",
        "access": "full_text_verified",
        "clause": "s 11",
        "region": "New Zealand",
        "edition": "as at 5 Oct 2023",
        "checked_on": "2026-09-14"
      },
      {
        "code": "Procurement Act 2023",
        "title": "Procurement Act 2023 (c. 54) and Procurement Regulations 2024 (SI 2024/692)",
        "access": "full_text_verified",
        "clause": "ss. 74-75",
        "region": "United Kingdom",
        "edition": "in force 24 Feb 2025",
        "checked_on": "2026-09-14"
      },
      {
        "code": "AIA G702-1992 / G703-1992",
        "title": "Application and Certificate for Payment; Continuation Sheet",
        "access": "public_summary",
        "region": "United States",
        "edition": "1992 (current base editions)",
        "checked_on": "2026-09-14"
      },
      {
        "code": "FAR subpart 4.6",
        "title": "FAR subpart 4.6 Contract Reporting (FPDS contract action reports)",
        "access": "full_text_verified",
        "clause": "4.606",
        "region": "United States",
        "edition": "FAC 2026-01 (eff. 2026-03-13)",
        "checked_on": "2026-09-14"
      }
    ]
  },
  "description": "Approved contract variations: scope change, value and approval status.",
  "x-demiton-contract-url": "https://docs.demiton.io/registers/variations/",
  "x-demiton-register-catalog": "https://docs.demiton.io/concepts/register-catalog"
}

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