writes "Storage systems continue to lay the foundation for modern Internet services such as Web search, e-commerce, and social networking. Pressures caused by rapidly growing user bases and data sets have driven system designs away from conventional centralized databases and toward more scalable distributed solutions, including simple NoSQL key-value storage systems, as well as more elaborate NewSQL databases that support transactions at scale.
Eventual consistency is increasingly viewed as a spectrum of behaviors that can be quantified along various dimensions, rather than a binary property that a storage system either satisfies or fails to satisfy. Advances in characterizing and verifying these behaviors will enable service providers to offer an increasingly rich set of service levels of differentiated performance, ultimately improving the end user's experience."Link to Original Source