After so much evolution and development in the testing field, not quite every company that works on computer software practices testing professionally. Even today, many companies do not think testing is an essential asset for their company. This may lead them to a serious failure at some point, and they will rethink software testing.

What Happens Without Sofware Testing

Let's look at some data on fatal accidents that have happened over time due to software failure.

  1. In 1985, a radiation therapy machine in Canada malfunctioned due to a software bug and delivered lethal radiation doses to patients, leaving 3 people dead and 3 others critically injured.
  2. In 1996, the bank accounts of 823 customers were credited with 920 million USD because of a software bug. This incident happened in one of the major US banks.
  3. Nissan recalled about 1 million cars over a software failure in the airbag sensory detectors after two accidents were registered regarding the issue.
  4. Starbucks was forced to close about 60% of its stores in the USA and Canada due to a software failure in its POS system. There was also the time when the store served coffee for free as they could not process transactions.

Importance of Software Testing

With all the explanations mentioned above, it is quite sure that we must invest in software testing for the overall quality of any software that is developed by any company. To simplify, I will summarize the main points on the importance of software testing.


Many of you might be wondering how an added human resource in the team saves money. However, there is enough evidence to support the fact that quality testing reduces the overall cost for the company.

The software development life cycle consists of several steps. So, the earlier a bug is found, the lesser the cost to fix it. And testers involved from the project's beginning can point out bugs as early as possible.

There is a concept of Boehm's cost of change curve described back in 1976, which is true for SDLC even today. This curve shows that the cost to fix a bug is exponentially high in the later stages of software development.

Ide Koops on Twitter: "@henrikemilsson @michaelbolton Barry Boehm's second  law of software engineering (1980): "during a software project, costs to  find and fix bugs get higher as time goes by."" /
Boehm's Law Curve


The most sensitive and vulnerable part of any company or software is security.

We are familiar with Twitter handles that can hack into user information from even reputed companies. These bots steal or sell this data or can also threaten users based on the stolen data. This could have been avoided if testers had found these bugs beforehand.

As users, we want the service or the product provider to keep our data with utmost confidence. Just think what will happen if your bank account's information is leaked through your mobile banking application. This is one of the reasons software testing is a must.

Product Quality

Any product that is being prepared always has a set of requirements under which they are being developed. Software testing makes sure that the product meets the required acceptance criteria.

The quality of an application does not simply mean that it can run on a single device; it should be compatible with multiple devices and OS. Device and OS fragmentation is one of the major challenges today in the software field to ensure the overall product quality. Software testing helps mitigate this issue through testing on different devices and OS.

Also, if you are doing a code review, then it depends on WTFs/min. It's not me who said it; if you are a programmer, you must have heard about it.

Customer Satisfaction

The ultimate goal of every product is customer satisfaction. A company has to ensure its product can run efficiently with the required load and in stressful conditions.

Also, a software tester tests the product from an end user's perspective. A bunch of testing methodologies (e.g. UI/UX testing, user acceptance, compatibility and more) ensure overall customer satisfaction once it's released to the targeted group of customers.

In the end, I can only say do not save money on testing; otherwise, you will obviously have to pay more for development in the future.

I hope you consider the things mentioned in this article. Don't forget to subscribe using the buttons below to not miss our latest blogs.