Mechanism to control delegation and revocation of tasks in workflow system

1. A method to revoke a task in a workflow system, the method comprising:

receiving task data, the task data including information regarding a task having multiple portions to be performed;

receiving delegation data, the delegation data including information identifying a delegator of the task, the task, being subsequently delegated, further including information identifying a delegatee to perform the multiple portions of the task, and, additionally, a delegatee to perform reassigned ones of the multiple portions of the task based on a determination that portions of the task are to be reassigned;

receiving revocation task data, with the revocation task data being directed to revoking the reassigned ones of the multiple portions of the task;

subsequently reassigning the reassigned ones of the multiple portions of the task after receiving the revocation task data;

using at least one processor, verifying the revocation task data is associated with the delegator of the task; and

storing the revocation task data in a database.

2. The method of claim 1 , wherein the received delegation data is received from at least one of a group including a user input device and a delegation module.

3. The method of claim 1 , wherein the received revocation task data is received from at least one of a group including a user input device and a revocation module.

4. The method of claim 1 , wherein the task data includes information regarding a general task including at least one specific task.

5. The method of claim 1 , wherein the task data includes information regarding a specific task instance of a general task.

6. The method of claim 1 , further comprising revoking the task data when the revocation task data is associated with the delegator of the task.

7. The method of claim 1 , further comprising aborting revocation of the task data when the revocation task data is not associated with the delegator of the task.

8. The method of claim 1 , further comprising determining whether the task is completed.

9. The method of claim 1 , further comprising determining a task type, wherein the task type is selected from a group including a general task and a specific task instance of the general task.

10. The method of claim 9 , wherein the task type includes the general task, the method further comprising determining disposition of pending specific tasks of the general task, wherein the disposition is selected from a group including revocation and performance completion.

11. The method of claim 1 , further comprising determining a principal type associated with the delegatee, wherein the principal type is selected from a: group including a business role principal and a particular principal.

12. The method of claim 1 , further comprising comparing information in the subsequently delegated task to a set of rules, thereby to determine whether a subsequent delegation is allowable.

13. A machine-readable medium that is not a transitory, propagating signal storing a sequence of instructions that, when executed by one or more processors, cause the one or more processors to perform a method comprising:

receiving delegation data, the delegation data including information identifying a delegator of the task, the task, being subsequently delegated, further including information identifying a delegatee to perform the multiple portions of the task, and, additionally, a delegatee to perform reassigned ones of the multiple portions of the task based on a determination that portions of the task are to be reassigned;

receiving revocation task data, with the revocation task data being directed to revoking the reassigned ones of the multiple portions of the task;

subsequently reassigning the reassigned ones of the multiple portions of the task after receiving the revocation task data;

verifying the revocation task data is associated with the delegator of the task; and

storing the revocation task data in a database.