Functional Testing Vs Non-Functional Testing: Difference You Should Know at First

For some time, you must have heard a lot about the relative importance of software testing. How testing software is crucial to match the exact requirements, offer a user-friendly experience, enhance speed, and overall functionality? But do you know the base of software testing as it from does it starts and what component does it include? Here in this blog, we will be discussing and comparing functional testing vs non-functional testing. These are the base components of testing an application as per the requirement of enterprises.

Our main points of discussion are as follows:

* What is Functional Testing?

* Different Types of Functional Testing?

* What is Non-Functional Testing?

* Different Types of Non-Functional Testing

* Functional Testing Vs Non-Functional Testing

* Final Analysis

So, let’s begin on this.

What is Functional Testing?

Functional testing is a type of software testing in which all functionalities of the application are tested against the specific and expected requirements. Each and every function of the app is manually tested by professional testing agents to check whether it is running appropriately or not.

Different forms of testing types are involved in functional testing in conformity with the strategic requirements of the enterprise.

It is also called Black Box Testing, which is not concerned with the source code of the application. The detailed testing scenario involves checking the functionalities of the user interface, security, APIs, database, server, and more.

Know the Different Types of Functional Testing?

Here, we have the different types of functional testing:

* Sanity Testing: It is a specific type of testing under the arsenal of Black Box in which a particular functionality is testing. Testers check whether the specific functionality is working or not and make necessary changes including bug fixing. They also check whether it is working fine after making the changes.

* Smoke Testing: This testing is performed before the mission-critical testing to see what all functionalities are working fine and whatnot. It is necessary to save time and effort ahead in checking the features that are absolutely fine and testers need not waste time on the same.

* Regression Testing: This type of testing method is carried out after the bugs have been fixed at the initial stages and it is to see whether the build software is free from errors or irregularities.

* Integration Testing: As the name implies, it checks when two or more components are integrated with the application or not. It is also to check the functionality of the app after integrating other components.

* User Acceptance Testing: In this type of functionality testing, the user’s comfort and requirements are taken into consideration before accepting. Simply to say, actual users are given a trial version of the application to check its functioning. And, if any error or change is found, then testing changes to make the necessary altercations.

What is Non-Functional Testing?

When software is developed and given to users for accessing it. At such times, several non-functional things are considered, how is the speed of the app? What does it perform under load or stress conditions? Is the quality of software appropriate? And, things like that.

The answer to all such questions is performing non-functional testing. It is all about checking the behaviour, speed, performance, stress, and quality aspects of the application based on strategic testing methods.

Know the Different Types of Non-Functional Testing

Non-functional testing is divided into three aspects of testing methods.

1. Performance Testing

Performance testing of software is classified into different types as follows:

* Load Testing: The application is tested under particular load conditions to see how much load does it take in an actual response time environment. It is required to make your application strong during a load of several users accessing it at the same time.

* Volume Testing: This form of software testing is done to see how much volume of data does it handle in a real-time environment. It is also tested for the reliability and correctness of the information.

* Stress Testing: Just like load, an application is also tested to check the stress it takes at the time of heavy workload. It is tested to check how it handles stress in a real-time environment.

* Endurance Testing: In under this type of testing, the durability of software is tested with a repeated set of user’s load.

2. Usability Testing

In this form of software testing, the user interface is tested to see how user-friendly it is for customers to operate the same.

3. Security Testing

To check the security of software, whether it can prevent malicious data attacks from hackers, security testing is preferred by testing agents. Mainly speaking, it includes different components like checking the authentication, authorization, roles of admin, moderator, composer, and more.

Functional Testing Vs Non-Functional Testing

Now that you have got an idea of what forms the basis of functional and non-functioning testing. It is time for you to know the key differences between the two to understand the real comparison.

* Functional testing checks what the app really is in terms of functionality and features. Whereas, non-functional testing checks the how intentions of software related to its performance and use.

* Functional testing is based on user requirements and non-functional testing is specified by the development team.

* Functional testing is conducted before making the application live. On the other side, non-functional testing is performed based on the user journey.

* Functional testing relies more on the technical side of the app. Non-functional testing is more about performance, load, usability, and scalability.

Final Analysis

Functional and non-functional testing both are important for the success of a business application. It is relevant to perform both under the supervision of an experienced and leading software testing company. For this, you can rely on the professional expertise of TestingAgency, which is a pioneer testing company.

Frequently Asked Questions

1. What is the Latest in Software Testing?

Artificial Intelligence and Machine Learning are the latest components in the software testing ecosystem. Both the technologies are trending to automatically test the application based on functional and non-functional elements accordingly.

2. What Skills to Look In a Software Testing Agent?

An experienced software tester must possess few demanding skills like DevOps & Agile Methodologies, web & mobile technologies, SDLC, testing tools & techniques, programming, automation, etc.

3. At What Cost Software Testing Can be Done?

The cost of software testing depends mainly on the application and its features, reach, functionalities, complexities, and requirements of the enterprises. All such factors are taken into consideration to create a strategic testing plan and decide the cost accordingly.