SECURITY TRACKING OF COMPUTER RESOURCES

1 . A method performed by a computing device for tracking allocation of computer resources, the method comprising:

allocating a number of user-periods to an organization for accessing a computer resource;

determining a depletion date based on the number of user-periods and number of users;

when a new user is added, re-determining the depletion date based on an additional user;

when a user is removed, re-determining the depletion date based on one less user; and

when an additional number of user-periods are allocated to the organization, re-determining the depletion date based on the additional number of user-periods.

2 . The method of claim 1 further comprising determining whether a current date is within a warning threshold of the depletion date.

3 . The method of claim 2 further comprising sending a notification to the organization when the current data is within a warning threshold of the depletion date

4 . The method of claim 1 wherein the determining of the depletion date comprises setting the depletion date to a sum of the current date and a quotient of the number of user-periods divided by the number of users.

5 . The method of claim 1 wherein the re-determining of the depletion date based on an additional user comprises setting the depletion date to a sum of the current date and a quotient of a current depletion period divided by a ratio of the number of users to the number of users plus one.

6 . The method of claim 1 wherein the re-determining of the depletion date based on one less user comprises setting the depletion date to a sum of the current date and a quotient of a current depletion period divided by a ratio of the number of users to the number of users minus one.

7 . The method of claim 1 wherein the re-determining of the depletion date based on the additional number of user-periods further comprises adding to the current depletion date a quotient of the additional number of user-periods divided by number of users.

8 . A computing device for tracking allocation of computer resources, the device comprising:

a computer-readable storage medium storing computer-executable instructions comprising instructions that:

allocate a number of user-periods to an organization for accessing a computer resource;

determine a depletion date based on the number of user-periods and number of users; and

when an additional number of user-periods are allocated to the organization, re-determine the depletion date based on the additional number of user-periods; and

a processor for executing the computer-executable instructions stored in the computer-readable storage medium.

9 . The computing device of claim 8 wherein the instructions further comprise instructions that when a new user is added, re-determine the depletion date based on an additional user.

10 . The computing device of claim 8 wherein the instructions further comprise instructions that when a user is removed, re-determine the depletion date based on one less user.

11 . A computer-readable storage medium storing computer-executable instructions for controlling a computing device to track allocation of computer resources, the instructions comprising:

instructions that allocate a number of user-periods to an organization for accessing a computer resource;

instructions that determine a depletion date based on the number of user-periods and number of users;

instructions that when a new user is added, re-determine the depletion date based on an additional user; and

instructions that when a user is removed, re-determine the depletion date based on one less user.

12 . The computer-readable storage medium of claim 11 further storing instructions that when an additional number of user-periods are allocated to the organization, re-determine the depletion date based on the additional number of user-periods.