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Why is software testing important in software development?

Lawrence Luza
25/05/18
Software testing provides information so that stakeholders can assess whether a product is fit for production. It demonstrates the quality of software after its initial development by a programmer. But, perhaps most crucially, software testing puts applications through their paces, so they are able to work in different environments and across whichever platforms their end users require.

If software is developed by a human programmer, it’s a fair assumption that there may be mistakes in it. This isn’t detracting from the talent of the developer, it just means we human beings make errors sometimes. So primarily, software testing identifies any defects that might have occurred during development. Testing ensures that customers get a high-quality product, thus cementing the good reputation of both the customer and the developer. 

Automated testing is valued because it provides quicker results than the manual process and guarantees that each test is executed precisely as it was coded. Test logs are automatically generated, thus providing complete data regarding any failures. However, manual testing also has its place: the end users of your software are in all likelihood human, so testing based on actual human response will be highly relevant to its eventual performance. 

Building time for testing into the development of a new piece of software is vital. Without quality control, users will abandon the software – or not purchase it in the first place – and quite probably, let social media know their feelings about the developers.

Fundamentally, software testing is essential to ensure the software performs reliably and meets expectations. Users don’t want bugs – either because they disrupt the functionality of the software, or because they cause privacy and data security worries. Bugs can also prove costly, especially if they invite viruses or cause data loss that has a financial impact.

Furthermore, successful software must work on a vast range of devices, browsers and operating systems in order that it has the broadest possible appeal. Testing needs to address the volume of users that will interact with the end product. Perhaps it’s a ticket-booking app for a big event, a tracker for a world-famous marathon, or a voting forum for a TV show – all these apps will experience huge surges in user numbers so must be able to perform.

Read our related blog: Cyber security trends to watch out for in 2018
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