Which project dependency would allow two tasks to begin at the same time?

The dependency that allows two tasks to begin at the same time is the Start-to-Start dependency. This type of relationship means that one task cannot start until another task has started. By establishing this dependency, both tasks can commence simultaneously, facilitating parallel processing and potentially reducing the overall project duration.

For instance, consider a project where Task A involves preparing a presentation while Task B involves designing the accompanying visuals. By setting a Start-to-Start dependency between these tasks, both can begin at the same time, allowing for a more cohesive development process and efficient use of resources.

In contrast, the other dependency types do not facilitate simultaneous task initiation. Finish-to-Finish requires one task to complete before another can finish, Finish-to-Start indicates that one task must complete before another can start, and Start-to-Finish dictates that one task cannot finish until another has started, none of which support concurrent task beginnings.