I'm looking for a word that describes the backward, dependency between items that must be completed in a specific order, one after another.
"A series of interdependent tasks."
Is there a word that is more specific than interdependent? I don't want to imply that multiple tasks might depend on multiple other tasks. I also don't want to imply that two or more tasks might share dependencies between themselves at the same time. Only one task at a time has dependency on its prerequisite and the dependency relationship only goes in one direction.