IBM_Rational_DOORS
Rational Dynamic Object Oriented Requirements System (DOORS) (formerly Telelogic DOORS) is a requirements management tool.[4] It is a client–server application, with a Windows-only client and servers for Linux, Windows, and Solaris. There is also a web client, DOORS Web Access.
Rational DOORS has its own programming language called DOORS eXtension Language (DXL).[5]
IBM renamed Rational DOORS to IBM Engineering Requirements DOORS Management DOORS Family
IBM Engineering Requirements Management DOORS Next is now developed on the IBM Jazz platform. The Jazz platform uses Open Services for Lifecycle Collaboration (OSLC).[6]
In order to complete its functionality, Rational DOORS has an open architecture that supports third-party plugins.
DOORS was originally published by Quality Systems and Software Ltd (QSS) in 1991.[7] Telelogic acquired QSS in mid-2000[8] and IBM acquired Telelogic in 2008.