Data Processor requires an Assembling Machine 3 for construction, but you can get Data Processor unlocked without having Assembling Machine 3 researched (was checking out the mod via editor). On that note, Productivity Module 2 is also not a prereq despite being an ingredient.

Nothing actually game breaking.

Edit: Data Archeology should require basic Circuit Network on the same premise

There is quite a lot of items that do not display what they’re crafted in via the crafting menu. However if you go into the ghost/logistics menu, you can tell what machine makes what. General rule of thumb is use an electromagnet plant first, it usually can make most things from this mod. With very few only requiring assembly machine 3.

Oh I mean Assembling Machine 3 is an ingredient in the recipe for Data Processor, not that it's built in one.

Oh I see. You're saying you can research it before having Assembly Machine 3 and Productivity Module 2. That's wild!

Thanks, I've fixed in in 1.0.15 : )