4.7. Summary and open issues
In this section, we propose to conduct a global summary of the most relevant studied solutions. We will exclusively focus on works supporting at least two requirements of Big Data integration requirements in cloud environments, that is, R1 – selection, discovery and deployment of data stores, R2 – uniform access to any data store, R3 – integrated view on data stores and R4 – global query processing and optimization. To do so, we present a global summary in section 4.7.1 and introduce a set of open issues in section 4.7.2.
4.7.1. Summary
In this section, we provide a global summary and comparison between all the works studied throughout this chapter (see Table 4.5). To do so, we define three groups of criteria. The first one represents the requirements that we identified in section 4.2 for Big Data integration in cloud environments (R1, R2, R3 and R4). The second one enables us to check if the studied works sufficiently support...