Manual Testing Course Content By Vcube

Software Testing

 Introduction to Software testing:

The goal of software testing, a crucial stage in the software development process, is to assess and

confirm the usability, dependability, and operation of a software program or system. It is essential for

verifying that software fulfills its objectives and works properly for its end users. In this overview of

software testing, we'll look at its importance, goals, categorization, and standards of excellence.

 Why software testing needed?

Software testing contributes to the quality, dependability, security, and compliance of software products

and is a crucial step in the software development process. In order to offer high-quality software and

reduce risks and problems after as well as during implementation, this planned approach is used.

 Identifying Bugs and Defects

 Quality Assurance

 Risk Mitigation

 Enhancing User Experience

 Compliance and Standards

 Security

 Continuous Improvement

 Documentation

 Customer Confidence

 Cost Savings

 Types of software testing

To verify the quality, dependability, and usefulness of an application's software, software testing is an

essential stage in the software development life cycle. Software testing comes in a variety of forms, each

with a distinct function. A few of the most typical kinds of software testing are listed below:

 Unit Testing:

At this level of testing, each component or piece of code is tested separately to make sure it performs as

intended. It aids in early bug detection during the development cycle.

 Integration Testing:

The process of integration testing examines how various pieces of code interact when combined. It

emphasizes element connections and makes sure they work properly together.

 Functional Testing:

Functional testing ensures that a software application's features and functions operate in line with the

requirements. The software's ability to carry out its planned functions is tested.

 Regression Testing:

Regression testing entails retesting a software program following updates or changes to make sure that

new code additions do not cause current functionality to become unusable or introduce new bugs.

 Performance Testing:

A software application's performance is evaluated through performance testing, which includes load

testing, stress testing, and scalability testing. Load testing evaluates the performance of the system

under expected load, stress testing evaluates system behavior under extreme conditions, and flexibility

evaluation tests the application's ability to scale with increased load.

 Security Testing:

To find security flaws and vulnerabilities in a software system, security testing is done. To defend against

possible attacks, it uses code analysis, vulnerability scanning, and penetration testing.

 Usability Testing:

The main goal of usability testing is to gauge how user-friendly a piece of software is. It evaluates how

simple it is for consumers to utilize the application's navigation and user interface.

 Compatibility Testing:

Evaluation of compatibility makes ensuring that the program works properly on a variety of hardware,

browsers, operating systems, and network configurations. It's essential to accomplishing a large user

base.

 User Acceptance Testing (UAT):

UAT is the ultimate testing stage, during the course of which stakeholders or end users evaluate the

software to see if it satisfies their needs and is prepared for implementation in a live environment.

 Exploratory Testing:

Exploratory testing is a casual and unstructured method where testers search the software application

for flaws without using pre-written test cases. It's frequently utilized to find unanticipated problems.

 Ad-hoc Testing:

Ad-hoc testing is also an informal technique where testers execute testing without any formal test

strategy or specified collection of test cases. It is frequently used to locate problems fast.

 Alpha Testing:

Before the product is made available to outside users, an internal team of engineers or testers does

alpha testing. It seeks to find flaws and problems at an early stage of development.

 Beta Testing:

A pre-release version of the program is made available to a small number of outside users for beta

testing. These people offer comments and document any problems they run into.

 Smoke Testing:

Smoke testing is a fundamental level of testing that determines whether the software's primary features

are operating as intended. To find show-stopping concerns, it is frequently performed before to more

thorough testing.

 Sanity Testing:

Sanity testing examines only a small portion of the software's functionality to see if it is stable enough for

more thorough testing.

The choice of which type of testing to use depends on the project's requirements, objectives, and

constraints. Often, a combination of these testing types is employed to ensure the software's quality and

reliability.

 Why software has defects?

There are many different types of software flaws or bugs. These flaws may affect the software's

functioning, security, or performance and can vary from small irritations to serious problems. Here are a

few typical causes of software flaws:

 Complexity

 Human Error

 Changing Requirements

 Lack of Testing

 Time Constraints

 Miscommunication

 Legacy Code

 Concurrency and Race Conditions

 Platform and Environment Variability

 Security Vulnerabilities

 Third-Party Dependencies

 Inadequate Documentation