However, as an 'HCI' for programmers, the PARTS Workbench has many features that are not in modern Smalltalks. It has an immediacy that makes it very good for introductory teaching and for rapidly implementing programs with visual interfaces.
In the context of HCI tools for programmers, the PARTS Workbench stands out due to its distinct features that set it apart from modern Smalltalks. Its immediacy is particularly advantageous for teaching introductory courses and developing programs with graphical user interfaces quickly.