How are dependencies managed between tasks in a DTS package?

Dependencies between tasks in a DTS package are managed through linking tasks with precedence constraints. Precedence constraints define the order in which tasks are executed based on the completion of one or more preceding tasks. This means that a task can be set to run only after another task has successfully completed, or it can be configured to respond to the outcome of previous tasks, such as executing on success, failure, or completion.

This structured approach ensures that tasks are coordinated effectively, allowing for complex workflows where certain tasks cannot begin until the necessary conditions are met. The use of precedence constraints provides clarity and control over the execution flow, making it easier to manage complex data transformation processes while ensuring data integrity and minimizing errors.

In contrast, using random connections or executing all tasks simultaneously would lack the necessary control and could lead to dependencies being violated, resulting in unpredictable outcomes. Manual tracking of task completion is both inefficient and prone to human error, especially in larger, more complex DTS packages.