November 18, 2022

Your Handy Guide to Large-Scale Web Application Development

Customers desire speedier satisfaction with their needs, access to more information, brighter images, and better audio. Your web application’s scalability determines how well it can satisfy these demands and how much room it has to expand over time. This article will explain what scalability is and discuss solutions involved in developing large-scale online applications.

Scalability: What Is It?

Scalability is the capacity of an app to maintain constant performance regardless of the number of concurrent users. Consequently, a large-scale web application can manage enormous amounts of traffic and data and react to abrupt variations in load without degrading the effectiveness of operations. Scalability is crucial if you want to create a complicated app that can support numerous users concurrently.

How to Make Your Application Scalable?

You could believe that all applications need to be scalable right from the beginning. But there is no assurance of success when you begin a new enterprise. If you use the lean methodology for software development, presenting your product to customers and evaluating its performance is your primary objective. Moreover, IT staff augmentation will also be a good option to consider. Scalability is probably not necessary at this time.

Imagine you are confident that your program will be accepted by the market. You also can see continued growth. In this case, scaling the back-end and front-end makes sense. The steps for building scalable apps from already-existing online goods are as follows.

1. Make Sure Scaling Is Necessary

Scaling your app could be expensive if you have already developed one. On the other hand, if you plan to add features to your system or make the current ones more sophisticated, the existing functionality may not be able to handle the modifications in addition to the problems with rising traffic. Verify that your scaling expectations outweigh the costs. And make sure you’re not just hopping on the scalability bandwagon because everyone else is.

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2. Use Metrics to Identify the Scalability Difficulties You Face

You determine that your application has to be scaled after giving it some thought. Selecting the scalability concerns you should concentrate on is the next stage. What will help you with this is monitoring the following indicators:

  • input/output over a network;
  • CPU use;
  • input/output for disks;
  • memory use.

3. Select Tools for Measuring Metrics and Keeping an Eye on Scalability

You need app monitoring technology to monitor relevant metrics to identify trouble areas. Stackify Retrace, New Relic AMP, and AppDynamics are a few examples. Test the above metrics after selecting a tracking tool. If any of these yield impressive results, you should investigate further and develop test cases for your app’s scaling.

These preliminary findings serve as your benchmarks. Keep using the tool you selected to track the data both during and after constructing a big app. They provide built-in monitoring capabilities if you utilize a PaaS like Heroku, Microsoft Azure, Amazon Web Service, or IBM Cloud.

4. Select the Appropriate Scalability-Enhancing Infrastructure Parameters

Because cloud services handle many facets of web app creation and upkeep, utilizing a PaaS for a web application is advised. These components include the servers, infrastructure, storage, runtime environment, networking, databases, and middleware. PaaS can facilitate scaling by providing auto-scaling in addition to dependability and SLAs availability.

5. Pick an Architecture Pattern to Support the Scalability of Your App

Because some elements of your program will hinge on its scalability, and others will be necessary just for specific people or at specific times and could be packaged as plugins, choosing the proper architecture pattern is important. There are four most popular architectural patterns. These are microkernel, event-driven, layered, and microservices architecture. 

6. Select an Application Framework That Is Scalable

Graphical user interfaces (GUI) and the creation of web-based applications are supported by application frameworks. For instance, they enable code sharing for several modules. It significantly minimizes development problems. You also need to make sure the database you use is scalable.


All in all, in the age of increased development of cutting-edge technologies, it is important to create competitive products. Follow the tips in this article to develop a quality large-scale web app. Maybe it will be the final step towards your product’s big success.

About the author 

Kyrie Mattos

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