Users will require some knowledge of the data model underlying the application
to make full use of this facility. However, any user placed in the position of defining
rules will quickly demand some kind of functionality to visualize what results the
rules have created.
The rules engine designer may wish to add more metadata to the screens shown
in Figures 21.1 and 21.2. There is certainly a lot more metadata that can be used in
the Business Rules Repository. For instance, a column that is updated by a rule could
be identified as such, and the rule definition presented to the user.
What the ability to view data gives is one means to detect and investigate ...
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