What are two or more concurrent tasks depend on a single prior task the concurrent tasks are called tasks?

When two or more concurrent tasks depend on a single prior task, they are referred to as "dependent tasks." The prior task is often called a "parent task," and the concurrent tasks are "child tasks." For example, in a software development project, a task to design a user interface may be a parent task, while simultaneous tasks to implement backend functionality and conduct user testing are its child tasks, both relying on the completion of the design. This structure helps ensure that dependent tasks are executed in a logical sequence while allowing for parallel work once the prerequisite is complete.