The SIR models the flows of people between three states: susceptible (S), infected (I), and Recovered (R). Each of those variables represents the number of people in those groups. The parameters alpha and beta partially control how fast people move from being susceptible to infected (alpha), and from infected to resistant (beta).
The system dynamics model presented here includes different stocks and flows. There are three main stocks which has inflows and outflows. The model is generated by the use of SD library developed by professor Dimitris Papanikolaou.
