Create dependent jobs

Hi!
I have a necessity to have several jobs which related to each other.
So some job will start executing after children jobs are executed.
Is it possible right now? Or how is it hard to add this ability?

The issue names no files, tests, or entry points. First clarify the dependency semantics, including how child jobs are identified and what happens on failure, then locate the job execution flow and add tests for the agreed behavior. Done means the dependency behavior is specified and verified, but the current issue does not define those details.

Written by the indexing model from the issue text.