Authors : M. Husain, Yazed. ALsaawy and Ali Tufail
Abstract: The cloud computing is a leading driving movement for information technology where the major organizations are using more than one cloud provider, hence, computing will certainly become more distributed than it currently is this poses management, architectural and performance challenges. In this study, we propose a unique seven tier architecture of cloud database management system. The first tier elaborates the physical layer and specifies how to physically store the database files on the secondary storage devices. The second tier, physical middleware layer, provides seamless connectivity regardless of the underlying platform. The third tier, conceptual lower layer, supports logic design, database connectivity, data abstraction and partitioning. The fourth tier, conceptual layer, deals with query processing, searching and security of various databases of the system for the internal processing on data. The fifth tier, conceptual middleware layer, provides seamless connectivity amongst various databases. The sixth tier, external layer, focuses on user’s prospective where the same database can be viewed by various user’s simultaneously. The seventh tier, external upper layer, provides interface interoperability, interface design and security which are the major issues for cloud databases. We argue that our proposed distinct seven tier architecture would not only help to design a distributed database architecture in an efficient manner but would also optimize the querying/searching in a cloud environment.
M. Husain, Yazed. ALsaawy and Ali Tufail, 2018. A Seven Tier Architecture of Cloud Database Management System. Journal of Engineering and Applied Sciences, 13: 5084-5089.