For this discussion of the Stanislavski System, Stanislavski’s teachings during the later period of his life will be examined first. This is where he radically changed his earlier techniques in favor of what is now known as the Stanislavski System. The most important point of this radical shift is in the evolution of his ‘Method of Physical Actions’ which was formed in 1933, a few years before his death in 1938. This ‘Method of Physical Actions’ replaced his earlier techniques that were based heavily on ‘Emotional Memory’ as well as on long readings and analysis of the text when rehearsing a production.
Source
The Stanislavski System. Growth and Methodology. Perviz Sawoski 2ed