Parent-Child Design Pattern
With SSIS, there are several ways to introduce modular programming into your ETL processes. One of the msot flexible methods is by using the parent-child design. This pattern enables you to create packages to perform very specific tasks. If these tasks would be disabled, this design pattern allows you to utilize parameter bindings to disable functionality at the package leve. As the quote suggests, the more complex your ETL process becomes, the more of an organizational role the parent package plays, rather than just the role of a package that calls another.
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