status history

Hi i am a developer new to groovy. I am supposed to develop a web application that keeps a record of status changes for a device. The application is suppose to read and know the date the device was online and the date it was offline i.e keeping a status change history. I do not have an idea how i achieve this. Please can someone give me ideas on how to go about this...

Regards.

There are several ways to approach this but I'm assuming since you posted this in the Groovy forum you would prefer a Groovy solution. My advice would be to use Grails. There are several books and a lot of tutorials available online. You're question is way to broad in scope to be answered efficiently so you should look into Grails and then come back with more specific questions when you have them.