ROR

ROR commonly refers to Ruby on Rails, a server-side web application framework written in the Ruby programming language. It provides a structured approach to building database-backed applications and emphasizes rapid development through convention over configuration and the Don’t Repeat Yourself principle. In finance, ROR can also denote rate of return.

Created by David Heinemeier Hansson and released as open-source in the mid-2000s, Rails integrates several components for model handling, web requests, and view rendering. It popularized a number of software design patterns and practices, particularly the model–view–controller architecture and RESTful application design.

Core features include Active Record for object-relational mapping, a routing system that maps URLs to controller actions, migrations for versioned database schemas, and an integrated testing framework. Rails also includes an asset pipeline, built-in security measures, and a rich ecosystem of gems that extend functionality. The framework promotes code readability and developer productivity, and it supports both full-stack applications and API-only backends.

Use and impact: Rails has been used to launch numerous web startups and large-scale applications. It is commonly deployed on cloud platforms and supports rapid iteration through generators and scaffolding. As Rails has matured, it has shifted toward modularity and API-focused development while maintaining its core conventions.