Software Testing - Types, Concepts and Importance

software development testing
software testing concepts

Software testing is the procedure of analysing and confirming that a software application or product performs as intended. The importance of software testing includes bug prevention, lower development costs, and better performance. Software testing can be defined as the procedure of confirming and validating whether software or an application is bug-free, satisfies technical requirements as determined by its design and development, and effectively and efficiently satisfies user requirements by handling all exceptional and boundary cases.

In addition to identifying flaws in the software that is already in use, the software testing concepts look for ways to increase the product's effectiveness, accuracy, and usability. A software programme or application's specification, functionality, and performance are primarily measured.

Two Types of Software Testing

Software Testing is classified based on the below two steps,

  • Verification - This is the group of procedures that make sure the software carries out a certain function appropriately.
  • Validation - This term refers to a variety of procedures that guarantee the software is traceable to customer requirements.

With this, Software Testing can be broadly classified into two types - Manual Testing and Automation Testing. Enrol in the Software Testing Training in Chennai to gain professional testing skills in both types of software testing mentioned above.

Manual Testing

Without the use of an automated tool or a script, manual testing entails testing software manually. In this type, the tester simulates an end user and evaluates the software to find any bugs or a typical behavior. There are various stages for manual testing, including user acceptance, system integration, and unit testing. Software is tested thoroughly by testers using test plans, test cases, or test scenarios. Exploratory testing is also part of manual testing because testers search the software for bugs.

Software testers conduct manual software testing concepts by manually running test cases without the aid of any automation technologies. They pretend to be end users and work swiftly to identify as many issues in the application as possible. A bug report containing all of the bugs is created and sent to the developers for assessment and correction. Usability, performance testing, and determining the general level of software quality frequently emphasise manual testing.

Though Manual Testing requires zero coding language, enrich yourself with Python Training in Bangalore to make it easy for you when you upgrade to automation software testing. Because an application cannot be tested solely by automation, manual testing is an essential component of software testing. It calls for a particular mindset, including patience, inventiveness, and open-mindedness.

The following software testing concepts have been added to the Manual Testing section,

  • Manual Regression Testing
  • Test Case Execution
  • Exploratory Testing
importance of software testing

Exploratory Testing

Dynamic testing techniques like exploratory testing rely on giving the tester the opportunity to interact with an application and respond to the suitability of the application. Instead of following prescribed test procedures, competent software testers adapt and determine what is required. According to several thought leaders in the software testing sector, exploratory testing is actually the simultaneous design and execution of tests.


A significant bonus is that the preparation doesn't have to be comprehensive but is still necessary. Exploratory testing is fluid without documentation or test cases when performed correctly. It makes it extremely efficient at identifying rare issues and confirming functioning. When writing scripted tests is difficult, or additional knowledge about an application is required, exploratory testing can be helpful in challenging software testing situations. You can take the Software Testing Online Course at FITA Academy and use it by learning the software testing concepts in depth to unlock a wide range of job opportunities.


Exploratory tests will produce ineffective and unproductive results if they are performed without sufficient forethought. Exploratory testing, on the other hand, shouldn't be scripted. It implies that it is challenging to strike a balance between the two. A general software testing concept of what to expect is important without imposing severe regulations.

Exploratory testing also greatly depends on the expertise and attitude of the testers. A successful exploratory tester needs a wide range of abilities, including technical proficiency, lateral thinking, critical thinking, investigative skills, and effective communication.

Manual Regression Testing

Regression testing by hand is a technique for verification that is carried out by hand. It is employed to ensure that recent changes to software or web applications, such as bug fixes or code changes, did not negatively impact already-existing functionalities. It makes use of all or a portion of the test cases that have already been run, which are then run again to verify that the functionality is correct and no new issues have been created. Get to know this type of software testing in detail from the Software Testing Training in Bangalore and gain the professional skills of a software tester.


In all release cycles, regression testing is a requirement. When executed properly, it can raise and preserve quality. This constitutes the importance of software testing in the development of software. It should ideally be carried out following each and every change made to the source code. This guarantees that you only need to undo one commitment to repair a mistake, but it's not always feasible.


Manual regression tests are highly ineffective when an application is constantly changing, as is the case with teams who use the Agile methodology.

Test Case Execution

In order to verify that the application is functioning as intended, test cases can assist the tester move through a series of stages. A successful test case must have good writing abilities, meticulousness, and application knowledge. These test cases may be made by DevOps Engineers or a Quality Assurance (QA) lead, depending on the size and breadth of the software development team. DevOps is a booming sector in the IT field. You can make use of the job vacancies in this sector by earning a certificate from DevOps Training in Chennai.

Executing a test case involves running the code and contrasting the outcomes with what was anticipated. These instances are sent to testers during the testing phase, who carry out the tests, provide the bug reports, and report on the progress of each.

Automation Testing

In automation testing, sometimes called test automation, the product is tested using scripts created by the tester and a different piece of software. An existing manual software testing concept is automated in this method. Automation testing is used to swiftly and repeatedly rerun test scenarios that were carried out manually in manual testing. Automation testing is used in addition to regression testing to evaluate the application under load, performance, and stress. Check out the Software Tester Salary for Freshers as they are highly rewarded for the importance of automation and its functionality in the software testing field. Compared to manual testing, it broadens test coverage, enhances accuracy, and conserves time and resources.

Below are the types of testing in the Automated Testing section,

  • Unit Testing
  • API Testing
  • Automated Regression Testing
software testing concepts

Unit Testing

It involves testing specific applications or parts of applications. The goal is to guarantee that every component operates as intended. Since it necessitates a thorough understanding of the underlying programme design and source code, developers usually handle it rather than the quality assurance team. Selenium is one of the most important automation testing tools. You can enrol in the Selenium Training in Bangalore to learn the importance and functions of this tool in detail.


A unit test failure might result from either a code flaw or an issue with the unit test itself. In either case, it's simple to identify the issue, and it's still early enough in the development cycle to be fixed. Unit testing guarantees that the code still works as intended as the code demands. These software testing concepts simplifies the code, making it easier to understand and less complicated. Each unit is checked before integration into an application. Additionally, unit testing guarantees the documentation of an application. This is useful for other developers who want to know a specific unit's features.


Writing effective unit tests is challenging. It could imply that the test code is at least as likely to contain bugs as the code it is testing. Both manual and automated unit testing use this scenario. With the exception of the most straightforward programmes, it is practically difficult to assess every single execution route. A thorough version control system is necessary to keep track of the modifications in case someone has to go back to earlier iterations.

API Testing

Testing Application Programming Interfaces (APIs) include examining APIs. A feature that enables interaction and communication between apps is an API. It establishes whether the APIs live up to expectations in terms of functionality, dependability, performance, and security. This does not cover software development testing for usability, UI, or UX. Sending requests to an API, observing the output, and recording the response comprise API testing. Robotic Process Automation (RPA) is an evolving technology in software testing. Join the RPA Training in Chennai to learn the importance of software testing with robots and their functionalities.


An API may have issues if it is not properly tested, which could affect both the main programme and any other apps it integrates with. API testing offers a crucial check to guarantee that this functionality operates as intended.


It can be difficult to set up a testing environment for API testing. For API test cases, solid coding skills are also required.

Automated Regression Testing

Regression testing is by its very nature, repetitive. Either a human process or an automated one can be used. Similar to manual regression testing, automated regression testing is a method of verification but is carried out automatically instead of manually.


The test helps in improving the product quality as others. It also helps to identify any negative effects of upgrades, bug patches, or code modifications.


This test is expensive compared to the other automation software development testing processes. They demand high maintenance effort from the employees’ side. These type of tests can also cause their own side effects. Join the Selenium Training in Chennai to learn the automation tool in detail, as this could help you carry out the tests easier than before with manual testing.

Importance of Software Testing

It's also crucial to remember that a firm is often only accountable for the software testing process if it employs software developers who produce software for the market. Software testing has already occurred if they are buying off-the-shelf software, especially one that has been examined and validated. The process of software testing would then no longer need to be repeated.

For now, let's go over some of the key arguments in favour of making software testing a requirement,

  • To gain customer confidence
  • To check software adaptability
  • To identify errors
  • To avoid extra costs
  • To avoid risks
  • To accelerate software development
  • To optimise business

Customers’ Trust and Confidence

The user-friendliness of the software is ensured by testing. As a result, the customers for whom it is meant can use it. Customers' needs are known to those who specialise in software application testing, and unless a programme can meet those needs, it would be a pointless investment. Understanding the importance of software testing is thus crucial for companies.

One of the ways in which customers’ trust is gained is through the robotic chats on their websites to aid the users. Join the RPA Training in Bangalore to test the quality of such software in the companies.

Software Adaptability

In order to provide customers with an effective user experience, software must be compatible with all platforms, given the variety of devices, operating systems, and browsers that are currently available. A bad user experience may result if the switch in devices compromises the functionality of the software. Testing improves the software's compatibility and adaptability while eradicating such performance flaws.

Identification of Errors

Although it might seem obvious, it's crucial to remember that software testing helps remove product flaws before the product is given to a customer. The importance of software testing is high no matter how skilled software engineers and developers are; there is always a chance of errors and faults in untested software. Testing will improve the functionality of the product by revealing and fixing hidden flaws.

A software development company's reputation can suffer from even a single problem. It can take a while to win back customers' trust. Thus, it is far preferable and ultimately more practical to ensure testing is carried out. You can now enrol in the Selenium Online Training and earn certifications right from the comfort of your home without travelling anywhere.

Cost Effective

The cost of compensating customers for using buggy software is related to one of the faults. These extra costs might result in large losses because the client's time, which they could have used to invest in something else, was also made useless in addition to their dissatisfaction with the purchased item. This affects the company’s reputation and its trust among clients.

Risk Management

The worst aspect about bugs and glitches is that they are a sign that a piece of software is not safe. Errors or flaws in software, especially that designed for organisations, can expose a system to vulnerability. Eliminating the importance of software testing can result in significant information losses to rival companies and a lot of communication blunders within an organisation.

Therefore, bugs can also result in privacy leaks and data gaps that can cost more than either of those things, in addition to just being about a software developer's reputation or the aggravation of encouraging errors in the usability of an application. Gain the RPA Training Online and earn the certification essential for fetching your desired jobs in the top IT companies.

Acceleration of Software Developing Process

Some businesses skip software testing because the software development process takes too long and they need to get the product to the customer immediately. While there may be a problem with time management in the way a software development team thinks about job delegations, there is also a problem with how software testing is conceptualised.

If software testing and development are carried out simultaneously, the software development process can be sped up and made more effective. Such pitfalls in software development are avoided by staging the design process such that software testing and development are carried out simultaneously.

Optimise Business

Before going live, testing enables the finished product to meet a higher quality standard. Lowering support expenses also improves the company's profitability and brand image. In essence, every software developer wants to keep customers, and every consumer wants to use a service that is dependable and worthwhile. A company can establish a solid reputation as a software provider by offering quality software.

These are just a few reasons for why software testing is required in the software development lifecycle. Because testing is much more than simply hitting buttons or "trying out" a system. You can also strengthen your skills in AI by joining the Artificial Intelligence Course in Chennai,where RPA is highly used in the IT industry.

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