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Data Storage Working Group

Programs need to preserve the information in persistent data storage systems in order to avoid data loss. The most typical persistent system is the one of Relational database management systems (RDBMS). RDBMS have been the main and almost the unique solution to the storage paradigm for almost 40 years. However the ACID constraints, lack of flexibility with regard to schema changes and the performance and fault tolerance when data volumes and complexity grow make them unsuitable for Big Data scenarios. NoSQL technologies have been designed with the scalability goal in mind and present a wide range of solutions based on their data models. Cloud Storage appears as another alternative solution to store massive amount of data. Still many challenges are under analysis in the cloud environment, such as issues related to cloud interoperability, privacy and security which are tackled by the BIG project.


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