Software testing is an important part of the software development process. Functional testing, in particular, can help ensure the software is delivered with all the desired features and functions intact.
By performing functional testing, developers can identify and fix defects before the software is released to customers.
This helps to ensure a smooth, error-free experience for users. In addition, functional testing can also help speed up the development process by identifying potential problems early on.
What is Functional Testing?
Functional testing is verifying that individual unit of software function as intended. It can be written manually or generated automatically from the source code.
Functional testing is an important part of quality assurance and ensures that features work as expected and that the software meets customer requirements.
Manual functional testing can be time-consuming, so many organizations use automated functional testing tools to help automate the process.
There are five questions that functional testing answers:
- What does this system do?
- How well does it do what it is supposed to do?
- Under what circumstances will it not work?
- What were the inputs, and what were the outputs?
- Can we automate it?
Functional vs Non-Functional Testing
Functional Testing
- Functional testing is done to verify that the system functions as per requirements.
- Functional testing is usually done before non-functional testing.
- Done manually
Non-Functional Testing
- Non-functional testing is done to measure the performance and scalability of the system.
- Non-functional testing is often done after functional testing, since it can affect how the system functions.
- Done with automated tools
Benefits of Functional Testing to Ensure Optimum Software Delivery
Benefits of functional testing include:
- Detection of defects early in the software development life cycle.
- Reduction in the cost and time required to fix defects.
- Increased customer satisfaction through increased quality of the delivered product
- Improved ability to meet deadlines and schedules.
- Enhanced reliability and stability of the delivered product.
Functional Testing Process
Following this three-step process helps ensure a thorough and successful functional testing process.
- Before starting any functional testing, it’s important to create a clear set of input values based on the specific requirements and goals of the project.
- Once these values have been determined, test cases can be developed and executed to assess the system’s performance and functionality.
- The final step is to compare the actual and expected outcomes and make necessary adjustments or improvements.
As a result of software functional testing, the risks associated with delivering poor-quality software are greatly reduced. In addition, it also provides valuable insights that can be used to improve the design and development process itself. By ensuring that all aspects of the software meet the required standards, you can guarantee that your clients receive the best possible product.
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