monitor-stumble is the initial work we did -- just stumble along without a plan until we get something working.

The problems with our "stumble" version:

• Not fault tolerant
• Not canonical Erlang "app"

monitor-app is an app created with the help of e2, which is basically equivalent to our stumble version, but is run correctly as an OTP app. We get fault tolerance (process supervision) and a proper framework for adding new features.

In particular, we added:

• Support for externally configuring our app
• Support for multiple concurrent checks