Web application framework written in Ruby, developed by David Heinemeier Hansson of Basecamp in 2004. It is a server-side, model–view–controller (MVC) framework in the REST style, and provides interaction between the database and web server. It contains templates for databases, web services and web pages, and supports JSON and XML data transfer as well as HTML, CSS and JavaScript for interfaces. Features like schema migrations and the scaffolding code generation method proved highly innovative at the time of the project's launch. Distributed under the MIT License.
Development of a payment system for a regional network of several thousand terminals with proprietary processing centre. APIs of the major international payment systems have been studied. Drivers for card scanners, sensor displays, keyboards, cash acceptors, and receipt printers have been written. A network of terminals for credit repayment has been created. The development has passed PCI DSS compliance several times.
2002–2024