Program or module processing An external program or an internal module (processing unit) can execute some sort of application function that may be used to get data from or to store data to one or more data repositories, e.g.: files (file system); databases (DBs); other sources located in local computer or in other computers.
PrOgram OR moduLE processinG An externaL program or an interNAl mOdUle (proCeSsINg UniT) Can exEcute some sort of ApPLicatiON FUnctioN That may be UsEd to geT dATa From or to stOre data to one oR morE DAta rePoSiTORIes, e.g.: fIlES (file SYsTem); daTAbases (dbs); otheR souRces locaTeD in LOcal ComputEr oR In otHer CoMPutERS.