5. FILES › 5.2 IMS Information Area Files › 5.2.2 IMS User Activity File (IMSISU)

5.2.2 IMS User Activity File (IMSISU)

The IMS User Activity File quantifies a user's IMS service
(response), load, and usage.

The placement of observations is dependent only on the data
source used and the scheduling mechanism involved.

+-----------------------------------------------------------+
|                                    |      DATA SOURCE     |
|       SCHEDULING MECHANISM         |----------------------|
|                                    |    IMF    |  NON-IMF |
+-----------------------------------------------------------+
|  EMH (Expedited Message Handling)  |  IMSISU   |  IMS_IS  |
+-----------------------------------------------------------+
|  Non-EMH (Message queue or BMP)    |  IMSISU   |  IMSISU  |
+-----------------------------------------------------------+


The following sections describe the file's organization, list
the data elements maintained, and provide usage hints.

    1 - IMSISU File Organization
    2 - IMSISU Data Elements List
    3 - IMSISU Usage Considerations