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Putting Methods to Work in Oracle

Oracle Tips by Mike Ault

Designing a Method Network (Hierarchy)

2.       Create a prototype for each process identified in the data flow diagram in order to define input and output requirements as well as to track method dependencies.

3.       Identify any standalone program units in the system, and trace their relationships to other program units and data objects.

4.       Perform an initial mapping of method prototypes to data elements.

There are two ways to proceed once the listed steps have been performed. A top-down or a bottom-up strategy can be implemented. The disadvantage of the latter is that it is difficult to ascertain early in the effort which atomic-level program units are needed to fulfill the project requirements. The top-down approach is effective because only those processes required to meet the business objectives will be targeted. As more facts surrounding the relationship between the methods are uncovered, more of the sub-methods will be moved to different parts of the network. As we stated earlier, the effort starts with the data flow diagram or functional model. The data dictionary is used in conjunction with the data flow diagram to associate the atomic-level attributes participating in the data process flow. At this stage, processes have a much broader scope, and it is fully understood that further decomposition will yield further sub-processes.


If you like Oracle tuning, you may enjoy the book Oracle Tuning: The Definitive Reference , with over 900 pages of BC's favorite tuning tips & scripts. 

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