Hot-Pluggable Versus Hot-Swappable Devices

Many times you might have come across the terms hot-swappable or hot-pluggable.
But what are these same ? What is the difference ?

By Definition:

 Hot-Pluggable :
Devices that can be removed or installed while machine is running.
These devices requires administrative action to install or remove without need of reboot.
Eg: It may be required to offline a devie before you remove it.


Hot-Swappable:
Hot-swappable devices are on the other hand more user friendly as they don't need any user intervention or administrative action.
Just plugin to install or plugout to remove.