The project aims to the creation of an UML tool suitable both for academia and the industry, including Ivar Jacobson's proposed extensions for Aspect-Oriented Software Development (AOSD).

Creation of a cross-platform (Linux, Windows & Mac OS X) UML editor, using C++; Allow users to create (in its first release) use case, sequence and class diagrams; Include AOSD extensions to create models for aspects, pointcuts and advices; Provide interoperability through the export of diagrams using the XMI standard; Deliver a high-quality code base, thoroughly unit- and functionally tested; Provide a usable, standard and easy-to-use user interface. The name "Rem" stands for "Requirements and Entity Modeler" but is also a reference to Rem Koolhaas, one of the greatest urbanists and architects of all time.