Hi MadhuG001,
The process in enterprise can be very complex. So Parent child Queue is a Work Queue design concept that can control all items in process.
Ex: there is a process description, system called W_system, and client ask you read Excel data, and key in W_system.
You can use one Queue as Parent queue, another as Child queue. Parent queue item store process status, and Child queue store each Excel data.
By doing this, you can clearly known for process situation, and each data's status.
