# Core Mechanism

- [DDI Revenue Analysis Mechanism](/ddi/core-mechanism/quickstart.md)
- [Why Choose DDI?](/ddi/core-mechanism/publish-your-docs.md)
- [DDI Core Functions](/ddi/core-mechanism/ddi-core-functions.md)
- [Transaction level](/ddi/core-mechanism/ddi-core-functions/transaction-level.md)
- [Grid level](/ddi/core-mechanism/ddi-core-functions/transaction-level/grid-level.md)
- [Piggy Bank Reward Mechanism](/ddi/core-mechanism/ddi-core-functions/transaction-level/piggy-bank-reward-mechanism.md)
- [DDI Global Honorary Agent Promotion System](/ddi/core-mechanism/ddi-core-functions/transaction-level/ddi-global-honorary-agent-promotion-system.md)
- [Risk Management & Smart Risk Control](/ddi/core-mechanism/ddi-core-functions/risk-management-and-smart-risk-control.md)
- [Multi-Asset Support & Global Trading](/ddi/core-mechanism/ddi-core-functions/multi-asset-support-and-global-trading.md)
- [How to Earn with DDI](/ddi/core-mechanism/how-to-earn-with-ddi.md)