How to read data pertaining to running applications? On the Android 4.3 Jelly Bean interface of my Samsung Galaxy SIII, I have noticed there seem to be various places where an application's running state is documented. I would like to know what the difference is between an entry for an application appearing in the following four places:


Application appears in the Task Manager under the Active Applications tab widget.
Application appears in the Task Manager under the Clear Defaults tab widget under "Launch by default".
Application appears in the Application Manager under RUNNING.
Application appears in the Application Manager under DOWNLOADED or ALL, and when clicked the "Force Stop" button is enabled.


It seems applications can appear in any of these four places in a bunch of different ways, and would like to know what it means if an application appears in one of these four places as opposed to another one of these four places.

Thank you for clarifying this puzzling issue.
Cases 1+3 show the app is currently running; basically, both are "task manager" views.

Number 2 is rather related to "preferred apps" for a given action: if you e.g. have two web browsers installed, this decides which one is launched if you tap an URL.

Number 4 is the "application manager". Usually, an "active force-stop button" should indicate a running app which you can "kill" by clicking this; but I'm not 100% sure whether the button is always disabled when the app in question does not run.