Data flow and Tivoli Decision Support for z/OS objects

As described in Part I, "Guide", Tivoli Decision Support for z/OS loads objects into its system tables when a feature component is installed. These objects (for example, log and record definitions, record procedures, and update definitions) are needed for data collection. At the same time, Tivoli Decision Support for z/OS loads the predefined tables and reports associated with that feature component.

After you update the lookup tables, Tivoli Decision Support for z/OS and its features collect data from log records. This data is restricted to that required to meet users' needs. Tivoli Decision Support for z/OS combines this data with information that you provide for presentation in reports. For more details about updating lookup tables, see Implementing the CICS Performance feature.

This chapter describes the flow of data from log record to report (or list record), showing Tivoli Decision Support for z/OS definitions. It also provides a simple explanation of the supported logs, their structure, and the common fields and conditions associated with each log. It shows how the CICS Performance feature maps log data into tables.