# Multi-Modal Database Engine <span style="color: red;">(this section is a work in progress)</span> ## Digital Asset Management ## Operational Modes ### ARDbE Augmented Relational Database Engine. This is the primary operating mode for Fractal instances. #### Augmented Relational Schema ### DDHT Decentralized Distributed Hash Table ### RDDHT Replicated Decentralized Distributed Hash Table ### DDDO Decentralized Distributed Document Object ### DGraph Decentralized Graph **Next whitepaper section:** [[04. The 100-Year Problem]] ##### Relevant Tags > #vfn-whitepaper #vfn-ardbe #vfn-ddht #vfn-rddht #vfn-dddo #vfn-dgraph