More Fallout 4 Crafting info:
http://www.gamesradar.com/fallout-4s-crafting-system-explained-bethesda/
Some interesting tidbits:
Items you scavenge aren't converted for "parts" until you get to a workbench - which makes sense.
You can "flag" items that have parts you are looking for.
You aren't building pre-fab houses - you are actually placing walls, etc where you want them.
You won't be hauling trees in your pack to build your settlement.
Systems can be very detailed - with flashing lights, sequences, patterns, etc.
Everything is pretty much WYSIWYG - What You See Is What You Get.