Hi - I'm a newbie still trying to get the basics of GTD down, and I find the process of separating items confusing.

I'm trying to figure out, after trashing, doing 2-minute items, and delegating actions, what I am left with. Here's my understanding:

reference (non-action items)
someday (actions waiting for weekly review decision to be made active)
calendar (actions waiting for a specific date)
deferred (actions waiting for some other event to occur)
action (action within a project list but waiting for the next action)
next action (actions to be done next)

Is this correct? It's not clear to me from the flowchart if this is where things wind up, but it's the best I can figure out.

I'll ask this much first, because if my understanding is wrong, it may solve my other problems. Thanks.