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VA Technical Reference Model v 24.4

Ruby on Rails
Ruby on Rails 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: Ruby on Rails is a server-side web application framework for creating database-backed web applications. This technology is a Model-View-Controller (MVC) framework, providing default structures for a database, a web service, and web pages. The Model layer represents the domain model (such as Account, Product, Person, Post) and encapsulates the business logic that is specific to the application. The ActiveRecord module allows the developer to present the data from database rows as objects and embellish these data objects with business logic methods. Although most Rails models are backed by a database, models can also be ordinary Ruby classes, or Ruby classes that implement a set of interfaces as provided by the ActiveModel module. The View layer is composed of templates that are responsible for providing appropriate representations of the application`s resources. Templates come in a variety of formats, but most view templates are Hypertext Markup Language (HTML) with Embedded Ruby (ERB) code. The Controller layer is responsible for handling incoming Hypertext Transfer Protocol (HTTP) requests and providing a suitable response. Usually this means returning HTML, but this technology`s controllers can also generate other formats, including Extensible Markup Language (XML), JavaScript Object Notation (JSON), and Portable Document Format (PDF). Controllers manipulate models and render view templates in order to generate the appropriate HTTP response.

This technology is typically deployed with a database server and a web server. By default, this technology utilizes Structured Query Language Lite (SQLite), however, any relational database management system (RDBMS) can be used. Also, this technology includes a built-in web server, however, any web server can be used.
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 been assessed by the Section 508 Office and found non-conformant. 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 Please see reference tab for more information concerning product versions.
Decision: View Decisions

Decision Source: TRM Mgmt Group
Decision Process: One-VA TRM v22.8
Decision Date: 08/30/2022 at 20:55:43 UTC
Aliases: Rails
Introduced By: TRM Request
Vendor Name: Rails Core Team
- The information contained on this page is accurate as of the Decision Date (08/30/2022 at 20:55:43 UTC).