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István Forgács, our CEO is the co-author of four books. We strongly recommend reading at least these two.


Modern Software Testing Techniques consists of an extensive description of our key innovations: action-state testing and two-phase model-based testing. Modeling is not easy, and the examples in the book help you to be a professional software testing modeler.


Practical Test Design helps you to learn the important test design techniques.

Modern Software Testing Techniques
A Practical Guide for Developers and Testers
István Forgács, Attila Kovács 2024

Many books have been written about software testing, but most of them discuss the general framework of testing from a traditional perspective. Unfortunately, traditional test design techniques are often ineffective and unreliable for revealing the various kinds of faults that may occur. This book introduces three new software testing techniques: Two-Phase Model-Based Testing, the Action-State Testing, and the Optimized Domain Testing, all of which work best when applied with efficient fault revealing capabilities.

You’ll start with a short recap of software testing, focusing on why risk analysis is obligatory, how to classify bugs practically, and how fault-based testing can be used for improving test design. You’ll then see how action-state testing merges the benefits of state transition testing and use case testing into a unified approach. Moving on you’ll look at general predicate testing and how it serves as an extension of boundary value analysis, encompassing more complex predicates. Two-phase model-based testing represents an advanced approach where the model does not necessarily need to be machine-readable; human readability suffices. The first phase involves a high-level model from which abstract tests are generated. Upon manual execution of these tests, the test code is generated. Rather than calculating output values, they are merely checked for conformity. The last part of this book contains a chapter on how developers and testers can help each other and work as a collaborative team. 

What You'll Learn

  • Apply efficient test design techniques for detecting domain faults

  • Work with modeling techniques that combine all the advantages of state transition testing and uses case testing

  • Grasp the two-phase model-based testing technique

  • Use test design efficiently to find almost all the bugs in an application

Who This Book Is For
Software developers, QA engineers, and, business analysts

Modern Software Testing Techniques


Practical Test Design
Selection of traditional and automated test design techniques
István Forgács, Attila Kovács 2019

Reliable test design is important in software testing; without it, defects in software may remain undetected. This award-winner book presents the key test design techniques, in line with ISTQB, and explains when and how to use them, including in combination, with practical, real-life examples. Automated test design methods are also explored. Tips and exercises are included throughout the book, allowing you to test your knowledge as you progress.

What You'll Learn

  • Key test design techniques in line with ISTQB

  • Practical application of test design techniques

  • Implementation of automated test design using Gherkin or model-based testing

  • Introduction of risk-based testing

  • Discussion about defect prevention


Readers say:

In-depth   Practical  Real-life examples


Sample pages

Practical Test Design
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