Software Training Institute


A Complete Step-By-Step ISTQB Tutorial

What is ISTQB?

A Complete Step-By-Step ISTQB Tutorial

A Complete Step-By-Step ISTQB Tutorial

ISTQB is a reputable organization and is trusted for software testing and quality assurance certification from a business perspective. 

The International Software Testing Qualifications Board (ISTQB), a non-profit organization with official registration in Belgium, was founded in 2002 to give software testers worldwide standardized certification. The 58 member boards of the ISTQB represent 80 different countries. 

ISTQB is more advanced and hence more developed as compared to the other organization of a similar nature, ISCB (International Software Certification Board). The board provides candidates with a hierarchical chain of qualifications that must be met based on the previously established respective syllabi.

What is Software Testing?

Software testing is a crucial process in the software development lifecycle that ensures the quality, reliability, and functionality of a software application. It involves the systematic and methodical examination of software to identify defects, errors, and discrepancies, ultimately providing developers with the necessary feedback to improve the software’s performance and user experience.

Software testing is sometimes misunderstood to simply involve using a system or piece of software and reporting on its functionality. The testing process, in actuality, has many various aspects, including, but not limited to, test execution, test planning, results analysis, designing and executing tests, reporting test progress, and system evaluation. Additionally, there is a distinction between static and dynamic testing. A dynamic test involves a system or component that is being tested. A static test is one in which a system is not actively used during the testing process. 

Executing a workflow within a system to check if its functions might be considered a type of dynamic testing even though it is frequently considered a standard testing activity. Static testing could take the form of reading a technical description of a system that hasn’t yet been developed and posing questions that prompt modifications in the design based on problems that haven’t yet been incorporated into the system.

Purpose of Software Testing

The primary purpose of software testing is to verify that a software application meets its intended requirements and functions as expected. Through rigorous testing, developers aim to uncover defects that could lead to failures, data loss, security breaches, or unsatisfactory user experiences. By identifying and fixing these issues early in the development process, software testing contributes to reducing development costs and enhancing the overall product quality.

Types of Software Testing

Software testing encompasses a wide range of techniques and approaches. Some of the most common types of software testing include:

Unit Testing

This involves testing individual units or components of the software to ensure they function correctly in isolation. Developers often perform unit testing during the coding phase.

Integration Testing

Integration testing evaluates the interaction between different units or modules of the software to ensure they work seamlessly together.

System Testing

In this phase, the entire software application is tested as a complete system to validate its compliance with specified requirements.

Acceptance Testing

This type of testing is carried out to determine if the software meets the end-users' expectations and requirements. It can be conducted as User Acceptance Testing (UAT) by actual users or as Beta Testing with a group of selected users.

Performance Testing

Performance testing evaluates the software's responsiveness, scalability, and stability under various load conditions to identify potential bottlenecks and ensure optimal performance.

Security Testing

Security testing focuses on identifying vulnerabilities and weaknesses in the software that could be exploited by malicious entities.

Why is Testing Necessary?

Testing is an essential aspect of the software development process. Its primary purpose is to identify and eliminate defects, ensuring that software applications function as intended and meet user expectations. By subjecting the software to various test scenarios, testers can uncover bugs, logic flaws, and issues that could lead to system failures or undesirable outcomes. This early detection and resolution of defects prevent costly fixes during later stages or after the software’s release. 

Testing also ensures software reliability by validating its functionality and performance under different conditions. Moreover, it enhances software quality by evaluating compliance with specifications and user requirements, delivering a polished and error-free product. Ultimately, testing proves cost-effective by minimizing post-release fixes and preserving the software’s reputation.

Why should we take the ISTQB certification exam?

Software testing is becoming increasingly challenging and needs nothing less than a specialization in the relevant sector because software is becoming more complicated and densely webbed as of late. You are given the necessary designation of “expert” in this field by ISTQB. 

One of the few qualifications that is valued and respected in so many different nations is this one. Such a credential will increase your self-assurance and provide you an advantage over rivals while also assisting you in using your talents in your practical employment.

You will advance in your career and be proud to display the “certified tester” stripes as a result. If you work for a testing company, having several qualified testers on your staff can help your business generate more cash by offering more expert services.

ISTQB Certification Levels?

There are three levels to this certification:

Foundation Level

If you want to get a qualification at the Advanced level, you must pass this exam. You gain a fundamental understanding of software testing through this test. Therefore, there is no harm in taking this foundation test even if you work in ancillary disciplines like project management, quality management, IT direction, etc. Instead, it will help you develop new abilities that may be useful in your line of work.

Advance level certification

The Advanced Certification, the mid-level certification, is intended for testers with at least five years of experience. The objectives of the Advanced Certification are to guarantee that committed test professionals grasp advanced best practices and important ideas in software testing and to promote ongoing professional development. The syllabus is divided into three main sections: sophisticated test management concepts for managers; advanced behavioral or black box testing and standards of testing for business-oriented testers; test automation and sophisticated structural or white box testing for technical testers and programmers.

Expert level certification

The Expert Certification is reserved for professionals with eight or more years of experience who are leaders in the field of software testing. The Expert Certification seeks to advance the field of software testing by ensuring that experienced test professionals consistently comprehend and use cutting-edge methodologies. Due to the tendency of experts to specialize, we will provide a range of expert syllabi covering subjects including test process optimization, test management, test automation, and sector-specific test methodologies.

How to prepare for the ISTQB exam?

The International Software Testing Qualifications Board (ISTQB) certification is a globally recognized credential for software testers. Preparing for the ISTQB exam requires dedication, a structured approach, and a clear understanding of the syllabus and exam pattern. In this guide, we will outline an effective step-by-step preparation strategy to help you succeed in the ISTQB exam and enhance your software testing career prospects.

Understand the ISTQB Syllabus

Start by familiarizing yourself with the ISTQB syllabus. The ISTQB offers various certification levels, such as Foundation, Advanced, and Expert. Choose the appropriate level based on your experience and knowledge. Obtain the official ISTQB syllabus for the selected level, as it outlines the topics and learning objectives you need to cover.

Utilize Official Study Materials

Rely on official ISTQB study materials provided by the ISTQB or accredited training providers. These materials are tailored to the exam's content and format, ensuring you receive accurate and relevant information. Review the textbooks, study guides, and sample papers to gain a comprehensive understanding of the concepts.

Enroll in an Accredited Training Course

Consider enrolling in an accredited ISTQB training course. These courses are conducted by certified trainers who follow the official syllabus, providing valuable insights and exam-oriented guidance. Interactive sessions and practical exercises can help reinforce your understanding of testing principles and practices.

Practice with Sample Papers

Practice is key to exam success. Access sample papers and practice tests to familiarize yourself with the exam format, question types, and time management. Practicing regularly will boost your confidence, identify weak areas, and improve your performance.

Create a Study Plan

Develop a well-structured study plan that allocates sufficient time for each topic in the syllabus. Set realistic study goals and adhere to a consistent study routine. A well-organized study plan will help you cover all essential topics effectively and manage your time efficiently.

Review and Revise

Regularly review the topics you've covered and revise your notes. Revision is crucial for retention and reinforcement of knowledge. Focus on understanding core concepts rather than memorizing information.

Take Mock Exams

Before the actual exam, take mock tests and practice exams. These simulated tests replicate the exam environment and assess your readiness. Analyze your performance in mock exams to identify areas that need improvement.

Stay Calm and Confident

On the day of the exam, remain calm and confident. Read each question carefully and manage your time wisely. If you encounter challenging questions, do not dwell on them for too long; move on and return to them later if time permits.

Benefits of ISTQB Certification

Enhanced Job Opportunities

ISTQB certification is highly regarded by employers worldwide. Holding an ISTQB certificate demonstrates your commitment to excellence in software testing and showcases your industry-specific skills. Many organizations specifically seek ISTQB-certified professionals for their testing teams, increasing your chances of landing sought-after job opportunities.

Industry Recognition

ISTQB is an internationally recognized standard in software testing. Achieving an ISTQB certification adds credibility to your resume and distinguishes you as a competent and skilled software tester. The certification serves as a testament to your proficiency, reinforcing your reputation within the software testing community.

Improved Skills and Knowledge

The process of preparing for an ISTQB certification involves comprehensive study and practical training in various software testing concepts and methodologies. This in-depth learning not only prepares you for the exam but also enhances your skills and knowledge as a tester. You will gain a deeper understanding of industry best practices and the latest advancements in software testing.

Increased Efficiency and Productivity

An ISTQB-certified tester possesses the ability to identify defects and potential issues more effectively, leading to improved software quality. Applying the ISTQB testing principles and techniques streamlines the testing process, making it more efficient and contributing to higher productivity in software development projects.

Reduced Development Costs

Certified testers are equipped with the expertise to identify defects early in the software development lifecycle. By detecting and addressing issues at an early stage, they help reduce the cost of fixing defects during later phases of development or after the software's release, ultimately saving valuable time and resources.

Advancement in Career

ISTQB certification is a significant step towards career advancement. With each higher-level certification attained, your value as a tester increases, leading to potential promotions and greater responsibilities within your organization.

Future of ISTQB

The ISTQB is expected to see significant developments in the future that will influence the software testing industry. With the increasing adoption of Agile and DevOps methodologies, ISTQB certifications will likely incorporate testing practices that align with these approaches, emphasizing continuous testing, test automation, and seamless collaboration between development and testing teams. The rise of Artificial Intelligence (AI) and Machine Learning (ML) in software applications will lead to the integration of AI-driven testing techniques into ISTQB certifications, optimizing test case design, execution, and analysis. 

As the tech industry continues to evolve, ISTQB will emphasize continuous learning and professional development, encouraging testers to stay updated with the latest advancements in technology and industry best practices.

ISTQB Model-Based Tester

Model-based testing is a theory that focuses on software testing that results from abstract models that reflect a particular system function or expected behavior. It is challenging but very advantageous for IT organizations because this method sees software testing as a crucial component of software development.

The Model-Based Tester module offers extra knowledge and abilities in the process, methodology, and techniques of model-based testing to professional testers. This certification would be helpful for everyone who wants to understand the usage of models for test generations, not just for software testing specialists like software testers, technical test analysts, test analysts, and test managers.


You can expand and deepen your knowledge by earning certifications, which not only lead to better professional chances but also open doors for you abroad. Companies are always looking for highly qualified persons that are better suited for the position.

Despite this, passing the ISTQB exam is still challenging, and you might require assistance from an expert. Candidates must get a qualifying percentage of 65% and possess in-depth testing expertise. This is where making an informed decision on a qualified trainer will pay off and direct your efforts.

You can take advantage of Brolly Academy’s top-notch ISTQB Certification preparation courses. Brolly Academy is a leader in the teaching of software testers seeking ISTQB Certification. Brolly is your solution to your new professional doorway with interactive sessions, networking opportunities, exam registration aid, and continuous encouragement.