Gorm (Graphical Object Relationship Modeller) is a graphical interface builder application. It is part of the developer tools of GNUstep. Gorm is the equivalent of Interface Builder that was originally found on NeXTSTEP, then OPENSTEP, and finally on Mac OS X.
Gorm and Project Center represent the heart of the suite for GNUstep. Gorm follows Interface Builder so closely that using tutorials written for the latter is possible without much hassle and thus brings the power of Interface Builder to the open source world being part of the GNU project.
Gorm allows developers to quickly create graphical applications and to design every little aspect of the application'suser interface. The developer can drag and drop all types of objects like menus, buttons, tables, lists and browsers into to the interface. With the mouse it is possible to resize, move or convert the objects or connect them to functions as well as to edit nearly every aspect of them using Gorm's powerful inspectors.
GNUstep Renaissance - framework for XML description of portable GNUstep/Mac OS X user interfaces
http://www.gnustep.org/experience/Gorm.html - a general page about Gorm
http://mediawiki.gnustep.org/index.php/Gorm_Manual - The Gorm Manual
http://www.gnustep.it/pierre-yves/index.html - "GNUstep development tools: a basic tutorial"