Schematics, true to name, are likely to contain device specifications in case of a failure in the central fabrication database.

There is always a certain set of basic survival and work-related products associated with each RIG, but the selection can be expanded upon with the application of schematics. The assortment of items available to a user appears to be entirely dependent upon which designs to an item is associated with his or her RIG. The Store also has a 'safe' feature which can assure users specific items without credit transfer provided that they 'put something into the safe,' e.g.: they surrender any items to the Store for dis-assembly and possible recycling into other products for other users with the promise that the initial user can get their items back elsewhere. In order to regulate and record resource usage, the Store employs a non-fluctuating credit system tied into a user's RIG. Utilizing on-site fabrication technology, Stores make use of stored amounts of pre-mixed, refined raw materials, plastics, metals, and composites to quickly create and dispense a set of pre-programmed products ranging from tools and toys, to weapons and ammunition.

Dead space 2 chapter 15