  Front-end     :      Back-end     |    Financiele
                |                   |   Instellingen
/----------+    |    /-- ------\    :
|   Simyo  |    |    | CDRator |    |
|  Website |<---+--->\---------/    |
\----------/    :          ^        |
                |          |        |
                |          v        |
/----------\    |    /---------\    |
| Simone   |    |    |cYEL     |    |    /----------\
|  (IVR)   |<---+--->|   SMO   :<---+--->| Interpay |
\----------/    :    |         |    :    \----------/
                |    \---------/    | 
                |                   |
