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Data Transparency

DATA Act Information Model Schema (DAIMS)

This is the page for the DAIMS v2.2.2 release. The November 2023 release can be found on the Governmentwide Spending Data Model release page. The DAIMS version 2.2.2 release provides support for OMB M-22-02 and includes various documentation fixes and enhancements. The submission dates are published on the Resources Page. To understand the full changes and specific line-item details, you should review the change logs of the following DAIMS v2.2.2 documents which are linked further down on this page:

  1. Reporting Submission Specification (RSS)
  2. Interface Definition Document (IDD)
  3. Validation Rules
  4. Practices & Procedures (P&P) – Practices and Procedures (MAX login required)

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DAIMS Technical Architecture

The DATA Act Information Model Schema (DAIMS) is the authoritative source for the terms, definitions, formats, and structures for hundreds of distinct data elements that tell the story of how federal dollars are spent.

DAIMS gives federal agencies guidance about what data to report to Treasury, where to get that data, and how to submit it.

To learn more:

  • DAIMS Overview  – What DAIMS is, its scope, value, and approach
  • DAIMS Architecture  – The DAIMS conceptual model including a visual showing how domains, components, elements, and metadata go together in DAIMS
  • DAIMS Information Flow  – A technical flowchart showing how data comes into, flows through, and is reported out, including how often that happens and where the data come from.

DAIMS Documents for Federal Agency Staff

Practices and Procedures

  • How to submit, validate, and understand submitting to the DATA Act Broker

Reporting Submission Specification (RSS)

  • An Excel spreadsheet that lists data elements, provides metadata, and gives federal agency staff instructions on how to submit content in the appropriate file format.

Interface Definition Document (IDD)

  • An Excel spreadsheet that lists data elements, supporting metadata and explains what financial assistance data elements are pulled from government-wide procurement, sub-award systems, and from the DATA Act Broker (by way of FABS).

Validation Rules

  • An Excel spreadsheet that documents the business rules the DATA Act Broker uses for field and cross-file validations.

Examples of Submission Files - .csv files showing the format of agency submission files

DAIMS Documents for Data Analysts

These PDF files show the data model relationships for RSS and IDD files.

DAIMS Documents for users of

Online Data Dictionary

  • A link to the online data dictionary with a full list of data elements with a definition for each element and some associated metadata.

Consumption-Focused Metadata (CFM)

  • An Excel file with a list of data elements, definitions, and supporting metadata showing how submission and outlay data is compiled.

Consumption Focused File Diagram

  • A PDF file diagram showing the data model for data sources of the website.

History of DAIMS releases since 2016

Each of these zip files contains key DAIMS documents (RSS, IDD, sample files, file diagrams, flow diagram, validation rules, architecture document, and architecture overview)

Table may scroll on smaller screens

Zipped DAIMS
2.2.2 June 23, 2023 Various 2023 and 2024 DAIMS v2.2.2 zip
2.2.1 Sep 26, 2022 Oct 1, 2022 DAIMS v2.2.1 zip
2.2 June 3, 2022 Oct 1, 2022 (FABS)
Nov 16, 2022 (DABS)
DAIMS v2.2 zip
2.1.2 April 4, 2022 April 2022 DAIMS v2.1.2 zip
2.1.1 Nov 22, 2021 Various 2021 and 2022 DAIMS v2.1.1 zip
2.1 June 4, 2021 Various 2021 and 2022 DAIMS v2.1 zip
2.0.2 Dec 14, 2020 Dec 17, 2020 DAIMS v2.0.2 zip
2.0.1 Jul 13, 2020 Jul 13, 2020 DAIMS v2.0.1 zip
2.0 May 6, 2020 Jul 13, 2020 DAIMS v2.0 zip
1.4 Sep 27, 2019 May 18, 2020 DAIMS v1.4 zip
1.3.1 Feb 8, 2019 Various 2019 DAIMS v1.3.1 zip
1.3 Jun 29, 2018 Various 2019 DAIMS v1.3 zip
1.2 Dec 22, 2017 May 18, 2018 DAIMS v1.2 zip
1.1 Jun 30, 2017 Sep 27, 2017 DAIMS v1.1 zip
1.0 Apr 29, 2016 Apr 1, 2017 DAIMS v1.0 zip

Last modified 11/16/23