The software product as a whole is validated through System Testing, a level of testing. The evaluation of the complete system specifications is the goal of a system test. Most of the time, the software is just one part of a bigger computer system. In the end, the software connects to other software and hardware systems. The term “system testing” refers to a series of tests designed to exercise the entire computer-based system.
Software testing follows a predetermined procedure, just like almost all
software engineering processes. The categories of software testing are listed below in chronological order. The steps taken to fully test new software before marketing it are as follows:
Testing of the integration of a new module into the main software package before, during, and after integration. Testing each code module is necessary for this. Multiple modules can be contained within a single piece of software, often developed by multiple programmers. It is critical to examine how each module affects the program model as a whole.
* A professional testing agent performs system testing on the finished software product before it is released to the market.
· Beta testing of the product by actual customers is known as acceptance testing
Example of System Testing:
Below are some scenarios for an e-commerce Site:
System testing can be categorized into different categories, which are as follows:
1. Regression Testing: Under system testing, regression testing is done to confirm and determine if a system defect is caused by a change to another part of the system. It also ensures that any changes made during the development process have not resulted in a new defect. When new software is added over time, old flaws will not be there.
2. Load Testing: System testing is followed by load testing to determine whether the system can handle real-time loads.
3. Functional Testing: A system is put through functional testing to see if any functions are missing. During functional testing, the tester compiles a list of essential functions that the system should have, and that can be added to improve its quality.
4. Recovery Testing: System testing includes recovery testing of a system to verify the system’s dependability, trustworthiness, and accountability, all of which are dependent on the system’s recouping capabilities. It ought to have the option to save from all conceivable framework crashes effectively.
We will test the application during this testing to see how well it recovers from crashes or other disasters.
5. Migration Testing: Migration testing is done to make sure that the system can be changed without a problem in the new infrastructure if it needs to be.
6. Usability Testing: The objective of this testing is to ensure that the system meets its intended goals and is well-versed by the user.
7. Software and Hardware Testing: The purpose of this system testing is to ensure that the software and hardware are compatible. To run smoothly, the hardware configuration must be compatible with the software. By making it possible for software and hardware to interact, compatibility gives you more flexibility.
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Because it examines the system’s entire function, system testing guarantees the system’s performance end-to-end.·
System software architecture and business requirements are tested as part of it.·
Even after production, it helps reduce live issues and bugs.·
System testing uses a new system and an existing system to feed the same data into both, then compares the differences in the functionalities of the new and existing systems to help the user comprehend the system’s benefits.
Testing Any Application:
Let’s consider the example of Amazon. Consider we have to check various modules like login, register, add to cart, checkout, etc.

Before we can perform integration and system testing, we conduct functional testing on all modules. We have at least one module for performing functional testing in functional testing. Therefore, the Login Module, where we are carrying out the functional testing, can be found here.
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Inputs |
Results |
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POSITIVE |
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QA.Tester@gmail.com |
Accept |
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QA.Tester656@gmail.com |
Accept |
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QAtester@yahoo.com |
Accept |
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NEGATIVE |
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QA.Tester@gmailcom |
Error |
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QAtester |
Error |
Then will do functional testing on the Password Field:
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Inputs |
Results |
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POSITIVE |
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@QAtester@ |
Accept |
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NEGATIVE |
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Wrong Password |
Error |
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Blank |
Error |

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Verify that the added Item or items should be displayed in the cart page.
Verify that the added item has at least a quantity price and the delete option.
Verify that the user can change the quantity in the cart.
Verify that the quantity of the item in the cart should increase if the user adds the same item to their cart.
Verify the item should still be in the cart when you return to the website after closing the tab or leaving the site.

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Verify that the user should be shown the total amount, broken down as necessary.
Verify that the user should be able to choose their preferred method of payment.
Verify that the total should change in accordance with the addition of additional items or changes in quantity.
Utilize shipping methods to determine the cost of shipping.
It should be possible for the user to edit or add the right address.

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If the user’s credit card information needs to be saved, security testing should be carried out. Verify user can save their card information
in the payment method. Verify that the payment should be secure via the selected payment method. Verify that when the order is confirmed, an email notification is sent.