Either of us can create new tasks based on conversations we've had. Then, based on what we've defined in the task, I can give it an estimate of how long I think it will take to complete.
Give the "OK"
Once the task is defined, I've given the estimate, and you're ready for me to start working on it. You say that it's "ready to start". And I'll take it from there!
Do Work!
You've given me the "OK", so I'll start jammin' on the task to get it completed.
Done ...and done!
I'll mark the task as completed and get your final approval