Looking for an IT app for tracking recurring maintenance jobs

Hello,

            I run a department that has multiple weekly, monthly tasks. (not everything can be automated) I’m looking for a web base application that manages these tasks for tracking.

For example:

1. I.        As the manger, I would create a monthly task in the system. (an audit of account access the exchange servers)
   1.     I assign the tasks to one of my exchange admins
2. II.        At that time of the month, the task system notifies the assigned admin of task. (with ETA’s)
3. III.        Once the task is completed, the manger is notified to approved the work. (with in the system)

Anyone have any ideas on applications like this????

Thanks