"anomaly detection method"

Hi,

I want to generate event based dataset anybody know any tool or simulation software that produce event based data set.
I want to test generated data set from any suitable anomaly detection method anybody tell me which anomaly detection method is suitbale for given below problem:
Event1 start 9:00 take 3 minute finsh 9:03
Event 2 start 9:05 take 15 minute finsh 9:20
Event 3 start 9:30 take 30 minute finsh 10:00 and so on

The anomaly could be on missing of event, swaping of event etc.

Thanks