tasks within a request

tasks within a request

Does anyone know if there is a way to lay out a process. example:
Cable request process.
initially, the request comes in and auto launches 2 tasks for different groups.
once the first groups' task is done, the system would auto launch a 3rd task for another group...etc...

I need to be able to "stagger" my tasks or put in dependancies for launching other tasks.

Anyone know if there is a way to do this?

Thanks much.