Functionality Testing

Functionality Testing Definition

In networking, functionality testing validates a piece of hardware or software against functional requirements or specifications. The testing determines how a specific component of a product or system performs under vigorous conditions to identify room for improvement.

Functionality Testing Helps Companies Validate Product Components to Ensure Expectations are Met

Passing a functionality test means your solution produces the desired output based on the provided input.

For example, if you created software that allows customers to make purchases online, does the payment only go through with a valid card number?

Proper functionality testing determines if your application will work as intended.

6 Types of Functionality Testing

FUNCTIONALITY TESTWHAT DOES IT DO?
Unit TestingDuring the development phase of coding, unit testing isolates a section of code and tests it to ensure it produces the intended results. This helps to validate that each piece of code works as expected.
Smoke TestingFocused on significant areas of the product, smoke testing is performed on initial builds before being released into more extensive testing. If smoke testing provides a passing grade on the build, you have a stable build, and sanity testing is needed for more detailed tests.
Sanity TestingSanity testing dives further – performing tests on minor code changes to ensure that smaller functionalities work as expected.
Regression TestingRegression testing ensures that introducing new code won’t disrupt the already-existing functionality. However, compared to sanity testing, regression testing is often completed at the end of the software development lifecycle and only focuses on the highest risk factors.
Integration TestingWhile individual components might work independently, they may not work together. Integration testing evaluates whether combinations of different software components work correctly together.
Usability TestingDuring this stage, real customers use the product to see how comfortable they are with the user interface. Feedback is then taken and implemented into the code for further improvements. Usability testing is also called beta testing.

Functionality Testing Considerations

QuestionsAnswers
What type of tech products can be functionality tested?Software and hardware are tested to identify if a particular function is working as expected. Take, for example, logging into a system. Does your software properly read credentials?
What kind of tools are used for functionality testing?Functionality tests can be automated, helping to make the testing process more efficient, reducing manual labour and helping avoid human error. Although testing may be automated, the engineer must manually set the test parameters for the automation to follow.

Identifying the right automation tool is essential, and the tool you select will depend on the goals of your project. The right automation tool should meet the following requirements: 

Ease of use: the tool is intuitive to use by all team members and allows for collaboration.
Flexibility: the tool can operate seamlessly across different environments.
Reusability: the tool allows team members to re-run the same test cases if the user interfaces change. This saves time by not having to re-design similar test protocols.
Features specific to the team: Before going out and looking for one tool, teams need to identify what they need and then find the tool that meets most of their requirements.
What is your company’s specific goal behind functionality testing? Are you testing to see if it works or if it has any flaws?Functionality testing goals can be broken down into two outcomes:

Validation – Demonstrating that the product meets requirements and works as intended.
or
Defection – Identifying any flaws when the functionality is not performing as expected.
What process should you use for functionality testing?Here is a 5-step testing process for any functionality test:

1. Identify which function of the solution needs testing.
2. Identify the key performance indicator(s) is/are and other requirements of what an acceptable output may be.
3. Create input data based on the specific testing requirements.
4. Execute test case.
5. Evaluate the test output, revealing if the product works as intended or if it defects.

Functionality Test Your Tech Solution with CENGN

As a non-profit looking to supercharge Canada’s innovation economy, CENGN offers the infrastructure and expertise needed for small and medium-sized businesses to test their tech products.

These services are provided through a no-cost CENGN project to Canadian companies looking for commercial growth.

Most tech companies are experts in their specific product, not functionality testing. CENGN leverages the experience gained from 200+ commercialization projects to help businesses determine their metric-based testing goals, design a unique testing environment, and validate their product for the market on the CENGN Testbed.

Check out past CENGN Projects

Browse to learn more about the companies that CENGN has worked with, their innovative solutions, and how a CENGN project fit on their path for commercial growth.

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