Importance of Testing in Software Development Life Cycle

Want to learn about the importance of testing in Software Development Life Cycle (SDLC), here you go. In this blog you can learn about Importance, benefits and role of testing in SDLC and more.

Why Testing is important in Software Development Life Cycle (SDLC)?

“Just because you’ve counted all the trees doesn’t mean you’ve seen the forest”

Let’s face it. There is no software that can be declared bug free to begin with. The software developers should aim for the code that can minimize the volume and severity of the bugs present.  But most of the bugs doesn’t show themselves up and are latent in nature waiting to creep up at the opportune time. We all know what happened in the early days of software development. The 4-digit year was replaced with a 2-digit contraction in a bid to save 2 bits of space. 

Let’s face it. There is no software that can be declared bug free to begin with. So, the software developers can aim for the code that can minimize the volume and severity of the bugs present. But most of the bugs doesn’t show themselves up and are latent in nature waiting to creep up at the opportune time. 

Early days of software development

We all know what happened in the early days of software development. The 4-digit year was replaced with a 2-digit contraction in a bid to save 2 bits of space. And it led to the birth of the millennium bug or Y2K problem. Everyone was unaware of this problem until it is too late. Approximately $300 billion was spent on debugging and fixing the systems to prevent computer-induced apocalypse on the first day of the new millennium! So, to find out the bugs, one must continuously test the software looking for as many bugs as possible and fixing them before implementing the software.

The example of Y2K problem showcases what happens if a major bug is found after the deployment of the software. It not only affects the client’s business but also incur a huge loss. The loss is directly proportional to the delay in detecting the bugs. So, TESTING plays a critical role in a Software Development Life Cycle (SDLC). The first and most important benefit of TESTING is reduced expenses, especially in the long run. Employing a team of experts to test the software from the initial development stages itself would definitely prove beneficial cost wise.

Benefits of software testing

Importance of testing in Software Development Life Cycle (SDLC). You might have noticed sometimes, when you download an app and try to run it, it doesn’t run as desired and leave you frustrated. You obviously delete and look out for a similar app in the app store. Testing is more relevant than before. As in today’s world where the end users are rather impatient, when a glitch in the system or a bug went unnoticed and pops up on the app. The company is bound to lose the customer as he doesn’t cling on to the bugged app as he has varied choices available in market. Proper TESTING can increase your customer base there by making your organization go on a profit path!

In a Software Development Life Cycle (SDLC), there are 7 stages:

  • Planning
  • Analysis
  • Design
  • Development
  • Testing
  • Deployment
  • Maintenance

Testing comes as the fifth stage and is very crucial one so that it has its own life cycle called Software Testing Life Cycle (SDLC). STLC is a sequence of tasks that are aimed to verify and validate the functionality of the software developed before its deployment and to recommend any improvements. STLC checks whether the specific requirements asked by the user are met and identifies any defects in the software. But more than the act of testing itself, the act of designing these tests is considered as one of the best bug preventers. A useful test design can not only discover the potential bugs but it can also eliminate the bugs before they are coded. Introducing TESTING at an early stage saves not only money but also time!

Importance of testing in SDLC

The next importance of testing in SDLC is to ensure security of the system. Not all bugs and glitches are related to the end users. Some glitches in the system are a boon for hackers who always look for the same to enter. Once the hacker can enter a system, he can wreak havoc and can play with it as desired. Especially, if a banking or a defense system is attacked, the loss would be unimaginable and can potentially bring down an economy or could trigger a war.

So, while you are counting the trees and fixing them, you may fail to see the problem that the forest, as a whole may pose. While you are trying to fix the small errors in a software program, the whole program may cause big errors which you may fail to envisage. That’s exactly why you should incorporate importance of testing in SDLC at each stage.

Motivity labs are one of the best software testing service providers in India and USA. We ensure to provide the best results to the consumers with a team of experts that you can trust on. For more details get in touch with our experts today.


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