EVE INFO

[eve-online press release - Rigs]
A Rig is a new addition to the game, which allows players to modify the performance of their ship by adding Rigs to it.’ So basically it works like an implant for your ship. It follows much the same rules – there are fixed slots for them, only one of each type, once you insert a Rig into your ship you cannot remove it again and all Rigs are destroyed when the ship is destroyed.

Rigs DB

[eve-online press release - Salvaged materials]
We also wanted to improve loot in general, so we finally went ahead and exchanged that pristine can that drops for a proper wrecked ship. That shipwreck is now salvage-able, where you will find scraps of components required to create Rigs, the new ship upgrades which currently have a heavy defensive focus.

Salvaged materials