When you launch the software for your business, you want to ensure it works as planned. Pre-launch software testing is critical to achieving this result. There are many testing methods, but the two most important are functional and non-functional testing. Read on to better understand the difference between functional and non-functional testing and how each can contribute to the successful launch of your software.
What is functional and non-functional testing?
Functional testing verifies that each feature of the application is working properly. This involves testing different software functions and confirming that each function produces the expected results.
Functional testing also verifies that the software application meets the customer’s specific requirements. A good example of functional testing is ensuring that multiple users can place an order for a particular product at the same time.
Non-functional testing tests the performance of each function of the application. It determines the software’s ability to perform each function.
Non-functional testing requires extensive knowledge of the source code as it involves more complex software testing parameters than functional testing.
Examples of non-functional tests
Non-functional testing is a general term used to describe different types of testing techniques. Let’s briefly discuss each..
Accessibility Testing – Determines the availability and usability of software for a wide audience. Especially for users with disabilities such as visual impairment.
Compliance Testing – Ensures that the software complies with the customer’s specific industry guidelines.
Security Testing – Determine how vulnerable your software is to various cybersecurity risks and what can be done to strengthen multiple layers of security.
Endurance test – confirms the software’s ability to cope with stress. For example, testing software performance while performing multiple functions at the same time.
Internationalization testing – ensures that the text and layout of the application is appropriate for each language. Some translations can e.g. cause text to overlap in parts of the application where it shouldn’t.
Performance Testing – Tests how quickly the application responds to user input.
Why should businesses properly test their software systems?
Business software testing is critical to launching a product that end users will love. Performing functional and non-functional testing will ensure that your software is secure, reliable, easy to use, and easy to maintain and update. It will also reduce the risk of a major software failure disrupting your business.
There are many real-world examples of software bugs disrupting businesses. In 2017, Nissan recalled more than 1 million vehicles due to software errors in the airbag sensors.
Starbucks had to close up to 60% of its stores due to a sudden outage in the POS (point of sale) system. It cost the company millions in lost sales, and baristas were forced to hand out thousands of free drinks, much to the surprise (and delight) of customers.
So, as you can see, even the biggest companies in the world are not immune to software bugs. Ask yourself: Can your business survive similar disruptions?
How do you ensure your business software is tested and compliant?
When approaching a custom software development company to build your software, ask about their testing methods.
● What software testing tools do they use?
● Do they do manual and automated testing?
● What parameters do they check?
● How many times did they test throughout the development cycle?
● How do they communicate the results of each test to you?
Asking these questions will give you a deeper understanding of what their approach looks like and whether it fits your needs. You should also check with several suppliers to make sure the one you choose has the best test method for your needs.
Most importantly, any business you deal with should be transparent about their testing procedures. If you think the company is shady or wishful thinking, look elsewhere. Any software company should be able to explain to you in plain language what their testing method is and how it benefits you.
Final thoughts on software testing
The software development process relies heavily on software testing. With the right tools, the perfect test automation services, unique techniques and procedures, functional and non-functional testing can help you release the best commercial software to your audience. It can also help improve your professional brand and image by launching products that appeal to your target audience and help you stand out.
Whether you’re releasing an application for consumers or another business, make sure any company you hire has comprehensive testing practices in place. That way, you can be sure that they have a strong quality assurance program and that the product you receive will meet your unique requirements.