Applications tracking in Mac

I would like to be able to track the applications that a user is using in a mac and report it We currently have a software that can track the applications used in Windows. Once our software is installed in a PC it can track the applications that a user uses and create a report similar to the following Ex: Microsoft Word Used from date and time Used until date and time Microsoft Powerpoint Used from date and time Used until date and time Similar to the above mentioned Windows example I want to be able to track the applications that a user works on in a Mac. I will include your code along with our code and install it in a Mac machine. Here is what your code should do 1) Your code should be in Java. 2) Your code should track all applications that a user works in the Mac with start time and end time of application usage 3) All the values that you track should be stored in an excel or some database so that we can retrieve it. At the completion of project I would need your source code and you can instruct our developer on how you did this.