Application Monitoring Software

I have to develop a program, which monitores daily the availability and
performance of differently programs, which accesses a network.

The program has to start the monitored programms automatically, take
different actions in the programs automatically, so that afterwards a
statement about the performance can be done.

I do not know however yet so exactly, how could I realize such a
program.

Perhaps there are already implementations in OpenSource?


Thank you for your help!