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VA Technical Reference Model v 24.4

Vega Technology

General InformationGeneral Information help

Technologies must be operated and maintained in accordance with Federal and Department security and privacy policies and guidelines. More information on the proper use of the TRM can be found on the TRM Proper Use Tab/Section.

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Description: Vega is the low-level language providing visualization grammar, a declarative language for creating, saving, and sharing interactive visualization designs. Vega provides a formal language and computational file format for representing and reasoning about visualizations. Similar to how Structured Query Language (SQL) provides a language for expressing database queries, Vega provides a declarative language for describing visualizations. Vega specifications include the data transformations and visual encoding rules needed to express a rich space of visualizations. Building on libraries such as Data-Driven Documents (D3), the Vega runtime parses specifications in a JavaScript Object Notation (JSON) format to produce interactive web-based graphics.
Technology/Standard Usage Requirements: Users must ensure their use of this technology/standard is consistent with VA policies and standards, including, but not limited to, VA Handbooks 6102 and 6500; VA Directives 6004, 6513, and 6517; and National Institute of Standards and Technology (NIST) standards, including Federal Information Processing Standards (FIPS). Users must ensure sensitive data is properly protected in compliance with all VA regulations. Prior to use of this technology, users should check with their supervisor, Information Security Officer (ISO), Facility Chief Information Officer (CIO), or local Office of Information and Technology (OI&T) representative to ensure that all actions are consistent with current VA policies and procedures prior to implementation.
Section 508 Information: This technology has not been assessed by the Section 508 Office. The Implementer of this technology has the responsibility to ensure the version deployed is 508-compliant. Section 508 compliance may be reviewed by the Section 508 Office and appropriate remedial action required if necessary. For additional information or assistance regarding Section 508, please contact the Section 508 Office at
Decision: View Decisions

Decision Source: TRM Mgmt Group
Decision Process: One-VA TRM v22.9
Decision Date: 09/26/2022 at 02:04:13 UTC
Aliases: Vega Visualization Grammar
Introduced By: TRM Request
Vendor Name: Vega
- The information contained on this page is accurate as of the Decision Date (09/26/2022 at 02:04:13 UTC).