Читать книгу Blockchain Data Analytics For Dummies - Michael G. Solomon - Страница 40

Ethereum was an important blockchain advance toward general business acceptance. Despite blockchain's broader appeal and potential applications, the core technology still lacked many enterprise features. Most blockchain implementations assumed open access, no authentication, and a focus on trust. Enterprises rely on limiting access to sensitive information, integration with existing applications, and meeting performance goals.

Enterprise IT infrastructures can be extremely complex and cannot quickly change to accommodate radically new technology. To integrate well into an enterprise, new technology must be flexible enough to “play nice” with legacy applications and components. First- and second-generation blockchain implementations tended to be inflexible and difficult to modify. For instance, most blockchains do not make it easy to replace the consensus algorithm. Some older blockchain implementations allow you to use only the consensus algorithm that developers built into the blockchain. For example, the PoW algorithm may be popular in public blockchain implementations, but it's not a good fit for enterprise blockchains. PoW has a very high computing resource requirement to address the trustless environment, but enterprises generally have some trust among participants. When limited trust exists in an enterprise blockchain environment, other consensus algorithms may be a better fit. However, older blockchains may not provide an easy way to switch to a better-fit consensus algorithm.

The third generation of blockchains have all tried to address the problems of performance, scalability, and integration with other blockchains and legacy application and data. The third blockchain generation didn’t start with any single paper or new implementation. It came into being slowly as multiple vendors began to address enterprise and integrations needs. These blockchain implementations include Cardano, Nano, IOTA, Hyperledger Fabric, and Enterprise Ethereum.