Design and Development of a Unified Query Platform as Middleware for NoSQL Data Stores

The advancements in technology such as Web 2.0, 3.0, mobile devices and recently IoT devices has given rise to a massive amount of structured, semi-structure and unstructured datasets, i.e. big data. The increasing complexity and diversity of data sources poses significant challenges for stakeholders when extracting meaningful insights. This paper demonstrates how we developed a unified query prototype as middleware using a polyglot technique capable of interrogating and manipulating the four categories of NoSQL data models. This study applied established algorithms to different aspects of the prototype to attain this study's objective. . The prototype was subjected to an experiment where varying query workloads were processed. The performance data comprised of application performance index, memory consumption, and execution time and error rates. The results demonstrated that the prototype had a low error rate indicating ing it's robustness and reliability. In addition, the results showed that the prototype is responsive and able to query the underlying storage system effectively and efficiently. The prototype provides a standardize set of operations abstracting the complexities of each underlying storage system; reducing the need for multiple data retrieval management systems.