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Line 15: '''Precedence Constraints'''. Tasks are linked by precedence constraints. The precedence constraint preceding a particular task must be met before that task executes. The runtime supports executing tasks in parallel if their precedence constraints so allow. Constraints may otherwise allow different paths of execution depending on the success or failure of other tasks. Together with the tasks, precedence constraints comprise the '''workflow''' of the package. '''Event Handlers'''. A workflow can be designed for a number of events in the different scopes where they might ~~occurr~~occur. In this way, tasks may be executed in respose to happenings within the package —such as cleaning up after errors. '''Variables'''. Tasks may reference variables to store results or make decisions or affect their configuration.

SQL Server Integration Services: Difference between revisions