There is a section Development with MITK in the Doxygen documentation.
Interaction concept of MITK
Undo/Redo concept of MITK
Ongoing and finished modifications of the Core library: ChangeRequests
Further development topics
|/DeprecatedCleaning /GeometryRefactoring /IpPicFreeCore /MultiWidgetAbstraction /NamingConventions /Refactoring of Mapper Architecture /Refactoring of the Geometry Classes - Part 1|