Experience a Smooth Web Application Development process through the Three-Tier Web Architecture

For a developer only two factors can pop up in his mind, which is, the magnitude of flexibility and the amount of scalability that can be acquired during an application development. Web architecture can be usually considered as a framework while developing an application. So, a framework can easily assault the safe environment of a developer through its contributing features.

N-tier Architecture, a Model for Development

Now coming to the three-tier web architecture, which, is also known as client-server architecture, has a major say in physically dividing the software. The three major segments of software under the client-server architecture are presentation tier, logic tier, and data tier. But, what is the advantage of having such a composition, a question may surely arise. Well, it is a simple logic; we all know that for any developer applications are meant to be flexible and easily upgradable. So, the software which is contributing for an application development should also be less complicated in order to achieve that.

Anatomy of the Three-Tier Web Architecture

An approach which is effective in differentiating various segments of software, the three-tier web architecture has become a fascination for the developers.

• Presentation Tier– Being the top most tier, the presentation layer supports HTTP communication between the user and application. To be more precise, the HTTP requests and HTTP responses are exclusively carried out in this tier. (communication between the browser and server)Here, once a user makes a request, it is sent to the second layer, which is the business tier. The response received will be presented to user in a simple, understandable format.
• Business/Logic Tier– As the name itself which suggests, this layer performs logical actions. The business tier effectively processes all the inputs received from presentation layer. It plays the role of a mediator between the requests received from primary layer and the databases which are present in the third tier.Composed of web server, web scripting language and the scripting language engine, the logic/business tier effectively deals with all the incoming HTTP requests.
• Database Tier– DBMS, aka database management system and database comes into picture under this layer. The accepted requested is efficiently administered through accessing this layer. Through appropriate APIs and by executing SQL queries, the data under this tier are accessed effortlessly.

All the three tiers are independent of each other. So any up gradations to be performed then the process can be achieved with a snap. Also, unlike 2-tier architecture, the 3-tier architecture adequately contributes in the development of highly functional web applications.

The Bottom Line

Since the components of an application can be easily distributed among various layers, developing high-scale applications will not be a nuisance anymore. Every new customization’s or up gradations can be easily performed without any setback.