How To Start Learning Software Testing
- Unit Testing
- Integration Testing
- System Testing
- Acceptance Testing
Unit Testing: Unit Testing is done to check whether the individual modules of the source code are working properly. i.e. testing each and every unit of the application separately by the developer in the developer’s environment. It is AKA Module Testing or Component Testing. To learn about Unit Testing, check out our detailed Unit Testing Guide
Integration Testing: Integration Testing is the process of testing the connectivity or data transfer between a couple of unit tested modules. It is AKA I&T Testing or String Testing. It is subdivided into the Top-Down Approach, Bottom-Up Approach, and Sandwich Approach (Combination of Top-Down and Bottom-Up). To learn about Integration Testing, check out our detailed Integration Testing Guid
System Testing (End to End Testing): It’s a black box testing. Testing the fully integrated application this is also called as an end to end scenario testing. To ensure that the software works in all intended target systems. Verify thorough testing of every input in the application to check for desired outputs. Testing of the user’s experiences with the application.
Acceptance Testing: To obtain customer sign-off so that software can be delivered and payments received. Types of Acceptance Testing are Alpha, Beta & Gamma Testing.
Types of Black Box Testing:
- Functionality Testing
- Non-functionality Testing
In simple words, what the system actually does is functional testing. To verify that each function of the software application behaves as specified in the requirement document. Testing all the functionalities by providing appropriate input to verify whether the actual output is matching the expected output or not. It falls within the scope of black-box testing and the testers need not concern about the source code of the application.
In simple words, how well the system performs is non-functionality testing. Non-functional testing refers to various aspects of the software such as performance, load, stress, scalability, security, compatibility, etc., The Main focus is to improve the user experience on how fast the system responds to a request.
There are more than 100 types of testing. You can check this post where we have mentioned 100+ software testing types.
Test Artifacts are the deliverables that are given to the stakeholders of a software project. A software project which follows SDLC undergoes the different phases before delivering to the customer. In this process, there will be some deliverables in every phase. Some of the deliverables are provided before the testing phase commences and some are provided during the testing phase and rest after the testing phase is completed.
Some of the test deliverables are as follows: (Free Download Testing Resources)
- Test plan
- Traceability matrix
- Test case
- Test script
- Test suite
- Test data or Test Fixture
- Test harness
Why do we need Software Testing
Interviewers may ask you this question like “Why do we need Software Testing” or “Why is testing required” or “Why Software Testing”.
When I started in software testing I had no idea what software testing is and why it is required. I also had no clue where to start. Maybe you are in the same situation as I was long back. I say Software Testing is an art to evaluate the functionality of a software application with an intent to find whether the developed software met the specified requirements or not and to identify the defects to ensure that the product is defect-free in order to produce the quality product.
What if there is no Software Testing in the Software Development process.
As per the current trend, due to constant change and development in digitization, our lives are improving in all areas. The way we work is also changed. We access our bank online, we do shopping online, we order food online, and many more. We rely on software and systems. What if these systems turn out to be defective. We all know that one small bug shows a huge impact on business in terms of financial loss and goodwill. To deliver a quality product, we need to have Software Testing in the Software Development Process.
Some of the reasons why software testing becomes a very significant and integral part in the field of information technology are as follows.
- Customer Satisfaction
- Product Quality
As a matter of fact, design defects can never be completely ruled out for any complex system. It is not because developers are careless but because the complexity of a system is intractable. If the design issues go undetected, then it will become more difficult to trace back defects and rectify it. It will become more expensive to fix it. Sometimes, while fixing one bug we may introduce another one in some other module unknowingly. If the bugs can be identified in the early stages of development then it costs much less to fix them. That is why it is important to find defects in the early stages of the software development life cycle. One of the benefits of testing is cost-effectiveness.
It is better to start testing earlier and introduce it in every phase of the software development life cycle and regular testing is needed to ensure that the application is developed as per the requirement.
2. Customer Satisfaction
In any business, the ultimate goal is to give the best customer satisfaction. Yes, customer satisfaction is very important. Software testing improves the user experience of an application and gives satisfaction to the customers. Happy customers mean more revenue for a business. One of the reasons why software testing is necessary is to provide the best user experience.
This is probably the most sensitive and vulnerable part of software testing. Testing (penetration testing & security testing) helps in product security. Hackers gain unauthorized access to data. These hackers steal user information and use it for their benefit. If your product is not secured, users won’t prefer your product. Users always look for trusted products. Testing helps in removing vulnerabilities in the product.
4. Product Quality
Software Testing is an art that helps in strengthening the market reputation of a company by delivering the quality product to the client as mentioned in the requirement specification documents.
Due to these reasons, software testing becomes a very significant and integral part of the Software Development process.
Now let’s move ahead and have a look at some of the principles of Software Testing.
Principles of Software Testing:
Testing of software consists of some principles that play a vital role while testing the project.
The Principles of Software Testing are as follows :
- Testing shows the presence of defects
- Exhaustive testing is impossible
- Early testing
- Defect clustering
- Pesticide paradox
- Testing is context-dependent
- Absence of error – fallacy
Software Testing Companies
Here is the comprehensive list of best QA/Testing Service Provider Companies. In this list, you can find both Software Testing Service Provider Companies from India and worldwide that offer innovative and cost-efficient quality assurance and software testing solutions.