Just my interpretation from Wikipedia descriptions: Tutorial: Set of videos, quizes or wizards may work. User guide: Product manual, set of instructions, warnings, etc.
When to add in or on followed by how to (same case when it is followed by what, which) Examples: Here see instructions in how to enable 3D option on your TV. The problem …
Agreeing with chessmath and choster, I'd like to add a few cents of my own. User documentation may refer to subject matter i.e. Project, Team, Test, System, Administrative, …
The traditional term that is the closest to what the OP seems to have in mind was, as WS2 already pointed in a comment, chairman, which was treated as gender-neutral (so that …
exploration noun. the act of travelling through a place in order to find out about it or find something such as oil or gold in it: oil exploration facilities in the North SeaYou …
更多内容请点击：Differences between "tutorial", "guide" and "how-to"