Definition: Task dependency refers to the relationship between different tasks in a project, where the completion or execution of one task relies on the status of another.
Understanding task dependencies is crucial for effective project management, as it helps teams identify the sequence in which tasks should be performed to ensure project efficiency and minimize delays.
1. Finish-to-Start (FS): This is the most common type, where Task A must be completed before Task B can begin. For example, drafting a report must be finished before it can be reviewed.
2. Start-to-Start (SS): In this scenario, two tasks can begin simultaneously, but one task cannot start until another task has started. For instance, a team can start conducting research only after they have started defining project requirements.
3. Finish-to-Finish (FF): Here, Task A must be completed before Task B can be finished. For example, the final testing phase of a software project must be completed before the final documentation can be finalized.
4. Start-to-Finish (SF): This is a less common dependency where Task B cannot be finished until Task A has started. For instance, the final delivery of a product cannot occur until production has commenced.
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