IBM Rational DOORS, a family of requirements definition and requirements management solutions, improves quality by optimizing communication and collaboration and by promoting compliance and verification.
Product Editions
DOORS

Enables management and traceability of requirements for systems engineering and complex I.T.
DOORS Analyst Add On
Extends Rational DOORS with integrated UML modeling
DOORS Web Access
Enables stakeholders to create, view, edit and discuss requirements through the web

