https://forums.factorio.com/viewtopic.php?f=3&t=678


Planned:

Recipe tree GUI. This should be the foundation of some kind of ingame factoriopedia. It should provide the player fast ways to get the answer to questions like: "what is this item used to?" and "What is the graph of recipe ...

https://f.codl.fr/1804/factorio-recipe-tree-mockup__.png

TLDR : A recipe "family tree" so you can tell at a glance what you'll need in your assembly line

As a new player I find myself struggling to design assembly lines for some later-game products because it involves so many levels of things ...