In decentralized systems such as blockchains, transaction management is a critical component that ensures transactions are executed consistently and securely. A transaction usually involves a transfer of tokens, data, or assets between participants in the network. Transaction management covers various stages including validation, sequencing, execution, and finalization. It utilizes consensus algorithms to ensure all nodes agree on the state of the transactions and prevents issues like double spending. Beyond that, transaction management must also handle error recovery and ensure transactional atomicity, meaning that a series of operation steps are completed in full or not at all.