"Software testing is an investigation conducted to provide stakeholders with information about the quality of the product or service under test"
"Website monitoring is the process of testing and verifying that end-users can interact with a website or web application as expected."
Software testing means checking the requirements during a software is being developed and monitoring means rather in the checking if a ready developed software still working. As the two activities usually mean two totally different things,they seem to be pretty similar if we consider cloud service integration. As we use practically ready to go building blocks, checks that we use to identify if we developed a correct software can be used to monitor if the ready application still working. In this sense, the two process should not be two separate things, but actually one common platform to guarantee the software quality both at development and at operating the application as well.
An idea for such a common platform might be the following:
Let CTEST = {C1, C2, ... CN} a number of checks that is being used during software testng.
Let CMON = {CI, CI+1, ... CM} ⊂ CTEST a subset of checks that are being used in the future as well for monitoring purpose.
Certainly the major question is how we can define checks and a common framework that can be used both at testing and at monitoring.