# Deep dive

- [Important concepts](/deep-dive/important-concepts.md)
- [Separating accounting logic & business logic](/deep-dive/important-concepts/separating-accounting-logic-and-business-logic.md)
- [Ocean Primitives](/deep-dive/important-concepts/ocean-primitives.md)
- [The Ocean](/deep-dive/the-ocean.md)
- [Primitives](/deep-dive/primitives.md): Ocean-native smart contracts
- [Adapters](/deep-dive/primitives/adapters.md): Ocean adapter primitives
- [Proteus AMM Engine](/deep-dive/primitives/proteus-amm-engine.md): An Ocean-native AMM primitive
- [NFT Fractionalizer](/deep-dive/primitives/nft-fractionalizer.md): An Ocean-native primitive for fractionalizing NFTs