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The data quality rules specify the parameters used when a data quality operation is performed in real-time or in batch mode. For example, you can create a rule for the batch mode Data Cleansing operation on the Account business component for a particular vendor. The parameters used are the vendor parameters defined for the applicable vendor, but you can override these parameters by specifying the equivalent rule parameters. However, the value set for Match Threshold in the User Preferences data quality settings override the equivalent rule parameters.
You can only create rules for business components for which data cleansing or data matching are supported. This includes the preconfigured business components and any additional business components that you configure for data cleansing and data matching. Also, you can only create rules for operations that are supported for a particular vendor. For each vendor, the supported operations and business components are defined in the Administration - Data Quality screen, Third Party Administration view.
You can create only one real time rule for each combination of vendor, business component, and operation name. However, you can create any number of batch rules for each combination of vendor business component, and operation name.
When you define a rule for real time mode, the rule is applied each time data cleansing or data matching is performed for the business component. When you define a rule for batch mode, the rule is applied if you specify the name of the rule in the batch job parameters, see Data Quality Batch Job Parameters. Using rules in this way allows you to consolidate batch job parameters into a reusable rule.
You can specify a search specification, business object name, business component name, threshold, and operation Type in a rule or in the job parameters when you submit a job in batch mode. The values in the job parameters override any value in the rules.
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