# ONTOLOGY ELEMENTS

- [Smart Contracts](/ontology-elements/smart-contracts.md): Units of logic and functionality
- [Types of smart contracts](/ontology-elements/smart-contracts/types.md): Different types of Ontology smart contracts
- [Token Protocols](/ontology-elements/token-protocols.md): Ontology's OEP token protocols
- [Consensus Mechanism](/ontology-elements/consensus-mechanism.md): Ontology's consensus network and mechanism
- [Ontology Oracle](/ontology-elements/oracle.md): Oracle network and mechanism
- [Oracle Process Flow](/ontology-elements/oracle/oracle-process-flow.md): Let us take a look at an example and some sample code with respect to Oracle contract