as well as the commercial application of Smalltalk. He wrote the SUnit unit testing framework for Smalltalk, which spawned the xUnit series of frameworks
leader of the research team that developed Smalltalk at Xerox PARC; and in turn Lisp was influenced by Smalltalk, with later dialects adopting object-oriented
License Windows Linux macOS Other platforms Debugger GUI builder Dolphin Smalltalk Object Arts MIT License Yes No No No Yes Yes Pharo INRIA MIT License Yes
building MDL. Planner concepts influenced languages such as Prolog and Smalltalk. Smalltalk and Simula, in turn, influenced Hewitt's future work on the actor
can concentrate on the unique aspects of an application's content. The Smalltalk teams at Xerox PARC eventually settled on a design philosophy that led