Applying survive rules

The Survive stage analyzes record columns by applying simple or complex rules to the column and selecting the best column based on the rule.

To apply survive rules to the input columns, the Survive stage includes the following items:

• A set of pre-defined Techniques (packaged survive expressions) from which you can select
• The Rule Expression Builder for creating your own complex expressions

To consider a target as the best candidate for the output record requires a rule that comprises one or more targets and a TRUE conditional expression. A condition is made up of:

• Column names
• Constant or literal values
• Operators that specify comparison or arithmetic operations

You can create more than one rule for a target. In addition, you can use any input column for testing the condition. The column can be the target or another column that is not associated with the target.