This documentation is organized under the following headings:
| Prerequisites | Requirements for zIIP support by Natural. |
| General Information on zIIP Processing | Brief description of zIIP processing. |
| Natural zIIP Processing: TCBs, SRBs and Enclaves | Explanations of the TCB and SRB processes and the WLM enclaves Natural requires for zIIP processing. |
| Monitoring zIIP Usage | System information, reports and statistics available for controlling and evaluating zIIP-enabled Natural sessions. |
| Tuning zIIP Usage | Natural parameters, statements and operating system calls that can affect zIIP usage. |