The Importance Of Software Testing
What Is The Importance Of Software Testing?
There is an entire phase in the SDLC dedicated to software testing. Traditionally, it's done after the developers have finished building the software - it's handed over to the testing team to perform tests on it. This is, in my opinion, the most important part of the SDLC process.
The reason it's so important is that it is the major factor in getting good quality software. Developing software that works and works well is the ultimate aim of a project, and the testing stage is where this is done.
The software testing phase can be broken down into smaller stages, each of which have their own importance:
Unit Testing - testing each component of the software individually, to check that it works correctly in isolation.
System Testing - testing the entire system as a whole, ensuring all of the components work as expected.
Regression Testing - testing the entire system against a pre-defined list of tests, to ensure the new changes don't impact existing functionality https://crackedsoftwares.org/. This is important for upgrades and updates to software.
These are the main types of software testing and each of them are important. I believe there are three main reasons that we do software testing.
Software Testing Results In Less Maintenance
The aim of software testing is to ensure good quality software. Good quality software means it has less defects or issues, it works well, and does what it needs to do pkrdigitalagency.com. When you do software testing as part of a development project, you are aiming to pick up and find all of the issues in the system before it is release to the end users.
In an ideal world, the developers will be creating software that works first go, and does not have any issues. However, this is not often the case - bugs appear in the system and the software testing phase is there to pick it up. If it's found before the release, that's great. If it's found after the release, it means that time will need to be spent finding a fix and performing more testing on it - all while the end users are using the software.
The time taken to fix defects after the software is released is significantly more than during the testing phase. This is because the fixes need further testing, and need to align to any maintenance releases or other schedules that the organisation has set up. Getting it right the first time when you release it is almost always the preferred approach.
Good Software Testing Results In Increased User Morale
As mentioned above, fixing the bugs in the system before the release is preferred. Another benefit of doing this is that the user morale and confidence in the software is increased. Why is this?
Well, let's say Project A has completed but software testing was not done very well. The software works, but not very well, but is still released to the users. They start using it, and even though it does some things well, there are still outstanding issues so some parts don't work as expected. This results in the users getting frustrated with the tool - which is not a good thing for the organisation or the project team. The defects may eventually get fixed, but the reduced morale from the users will take time to heal.
Alternatively, Project B has completed. They have spent more time on software testing and when it is released, it has far less defects. It has taken longer to produce, due to the increased focus on testing, but once the users have it, it will work correctly and they will be happy with the software.
The testing effort and decision may be impacted by the organisation you work for, and other factors, but the benefits to user morale are high.
Software Testing Matches The Product To The Requirements
The final reason software testing is important is that it is used to match the software to the requirements.
Software is built around the user requirements gathered during the analysis phase of the project. The analysis phase defines what the software is supposed to do. The developers aim to build from these requirements, but it's the testing phase that checks that these requirements have been met.
The testing is done against functional requirements - such as expected behaviour and what needs to be done. It checks that the software does what it supposed to do, and that nothing has been done incorrectly or left out. It also checks non-functional requirements - things such as load time and other performance measures.
What If We Didn't Do Software Testing?
One question people might wonder, is what if we didn't do software testing? What if the developers just created the software and released it? That is one option - but I don't think it's a very good one.
It would rely on the developer actually creating low-defect software - which isn't very likely. All developers (myself included) think that their software is bug-free, but in reality, issues are always found.
Releasing the software without testing will mean there is a high risk of issues being found, and the software not actually working. It would waste a lot of user time and effort when using it. It may actually result in more serious issues, such as security breaches, data loss and corruption.
In summary, the importance of software testing can be attributed to three areas - less maintenance, increased user morale, and matching to requirements. It results in high quality software - which should be something all of us are aiming for.
All businesses and organisations will typically need some form of software during their lifecycle. The types of software utilised by most companies range from applications that will enable better management of key organisational functions - Human Resources, Finances and Accounts, inventory and stock and even running projects, to more specific items of software that have a key purpose such as Content Management Software for use on company websites. Although these software applications can be purchased "off the shelf", there are many business benefits that can be associated with choosing custom software development.
Custom Software Development is created for you
Developing custom software is a bespoke, made to measure process, which means that any applications and software programmes created as a result of the process will be entirely made for your company and its individual needs and requirements. Basically, a piece of custom made software is flexible and has the potential to fulfil your specifications meaning that it is easy to use and can be deployed throughout your entire organisation. Instead of having to make do with a ready made software programme or application, with customised software you can be sure that what you will receive will be entirely fit for purpose. There are also significant financial benefits that can be associated with custom made software despite it costing a little more to purchase than off the shelf packages. Software applications that have been made for you don't require any licence fees, so you can distribute them across your entire organisation without needing to pay extra.
Custom Software Developers will work with your Company
When creating software designed for your company, custom software developers will design and code it to integrate properly within your organisation. The software won't just help you achieve what you need it to achieve, it will be rich in features and tools that will make it usable by the people who will be operating it. With a piece of custom software all the requirements of your company will be considered, and developers will meet these both in the way that they develop the software and the after care that they provide properly. Although some training and support is available with off the shelf software to a certain extent, with custom made software your developers will continue to work with and support your company whether that's through training staff members in the use of the software or providing maintenance and technical help to remedy any errors that might occur in the software.
Customised Software is Safe and Secure
The ready made software packages available to businesses and organisations today are certainly a lot more secure than the ones that have been developed in previous years, however they don't compare to the security levels of customised software. Because customised software has been created for your company it will only be usable by individuals in your company. When you purchase custom software you will be given administrator rights to the software ensuring that you can change and alter user profiles and passwords to be in accordance with your own internal data protection policies. Customised software used on the web is also a lot harder to hack than standard, off the shelf software, and you can be sure that a reputable custom software developer will work hard to keep your application or programme and the data it contains as safe and secure as possible.
Customised Software is Adaptable
Ready made software is designed to be adaptable and flexible, meeting your company's needs and requirements both now and in the future. Even if you need a few different software programmes to accomplish organisational tasks, a custom developer will be able to integrate the different processes that you need into a single, usable application. Custom software is also much more likely to be cross-platform suitable, so you can be sure that when your company goes mobile you have the software that will support it.