Those aspects were bundled into the process modelling tool called "Software Development Workbench", that was later sold in 2000 to BWise, another Dutch company. This revised version of the method without the tool is commonly known as SDM2.
Those elements were merged into a process modeling tool called Software Development Workbench, which was later acquired by BWise in 2000. The updated method, without the tool, has become widely acknowledged as SDM2.