What is Scalability?

Within the context of blockchain technology, scalability is the capacity of a blockchain network to increase the transactional finality speed and throughput needed to improve processing times for transactions that are being sent and received via network protocol. The higher a network's scalability, the more efficiently it can send transactions and process different types of data. Scalability is one of the three main characteristics of a mature blockchain network, with the other two being decentralization and security.