Three-Tier Web Application Architecture
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Three-Tier Web Application Architecture
Three-tier web application architecture is a multi-tier architecture which also known as n-tier architecture. In this case, the architecture web application is developed and distributed into more than a single layer and is made up of three layers. These number of layers makes it suitable for many businesses as it meets most of their requirements and therefore is preferred and used by many.
Generically three-tier architecture includes presentation tier, data tier, and the logic tier, which are applications that can be compared to the web application and database tiers as in the three-tier web application of the amazon web services. The comparisons can be made on the formalities of the applications that entail the three-tier architectures. The generic three-tier architecture does not hide the reality that the applications entail different protocols and software. In contrast, the AWS in the web application and database tiers as three-tier architectures hide the openness that the applications should bring other protocols and software together (Wang et al., 2019).
The presentation tier under the generic three-tier architecture uses the standard graphical user interface and can run on PC, desktops, or workstation. It displays data that relates to services, for example, merchandising, browsing, shopping cart contents, and purchasing, and its ability to communicate with other tiers. Simultaneously, the logic tier can be multi-tiered itself and controls the operations of an application. It comprises one or more modules that are separate and runs on a workstation or application server. The data tier is mandated to control the servers that store information. On the database server, the data tier runs the relational database management system. It also maintains data independent from application servers.
Furthermore improves performance and scalability while AWS, the three-tier architecture as web, application, and database tiers, entails application, which at the base is the database tier. The database tier consists of a database management system that is used to manage the database that contains the data users query, create, modify, and delete. On top of the database tier, the middle level is built, and it has most of the application logic, and it communicates data information between the other stories. On top of the middle tier, there exists a web browser software known as client tier that interacts with the application. And the web under the AWS entails three major distinct standards and tools: the Hypertext Markup Language, the TCP/IP networking protocol suite, and the Hypertext Transfer protocol. Through the three measures and tools, web structure, and present information through a web browser application. Also, transfer data between applications over the internet and still have little effect on web database application makers. The HTTP though a critical component of the web, creates a need for application logic as there arises a problem in building web database applications as it requires interfacing generic database applications to the web using the HTTP. Hence the generic and AWS have different formality of describing web database applications, which comprise protocols and software as three-tier web application architectures (Grozev and Buyya, 2015).
REFERENCES
Grozev, N., & Buyya, R. (2015). Performance modeling and simulation of three-tier applications in the cloud and multi-cloud environments. The Computer Journal, 58(1), 1-22.
Wang, Y., Tao, X., Zhang, X., Zhang, P., & Hou, Y. T. (2019). Cooperative task offloading in three-tier mobile computing networks: An ADMM framework. IEEE Transactions on Vehicular Technology, 68(3), 2763-2776.