NAME

       Analizo::Metric::AfferentConnections - Afferent Connections per Class (ACC) metric

DESCRIPTION

       The metric calculation is based on the following article and calculates the class
       connectivity.

       PhD Thesis: Monitoramento de metricas de codigo-fonte em projetos de software livre by
       Paulo Roberto Miranda Meirelles.

       See the adaptation of the paragraph about Afferent Connections per Class in the article:

       Measures the connectivity of a class. If a class "Ci" access a method or attribute of a
       class "Cj", consider "Ci" a client of the supplier class "Cj", denoting "Ci => Cj".
       Consider the follow function:

         client(Ci, Cj) = 1, if (Ci => Cj) and (Ci != Cj)
         client(Ci, Cj) = 0, otherwise.

       So "ACC(Cj) = (sum(client(Ci, Cj)), i = 1 to N)", where "N" is the total number of system
       classes. If the value of this metric is large, a change in the class has substantially
       more side effects, making maintenance more difficult.

REFERENCES

       •   Monitoramento de metricas de codigo-fonte em projetos de software livre
           <https://www.teses.usp.br/teses/disponiveis/45/45134/tde-27082013-090242>