Decode AI-Powered Quality Engineering from AI & QA Leaders,
István Forgács, PhD is a software testing and test design automation expert with 30+ years of experience in test automation, model-based testing, and agile testing methodologies. He is the CEO and co-founder of 4Test-Plus and the creator of Harmony, a two-phase model-based test design automation tool focused on improving test maintainability and reducing testing costs. István has led EU- and Hungary-funded research projects, headed software testing groups, and researched core algorithms for testing tools and analyzers. He is the co-author of four books, including Modern Software Testing Techniques and Agile Testing Foundations, and actively contributes to advancing test design methods such as action state testing and general predicate testing through education, tools, and community platforms.
Published Articles: 8
Articles by Author
Software Testing
And the Winner Is: Aggregate Model-based Testing | TestMu AI (Formerly LambdaTest)Why rely upon aggregate model-based testing? Let’s explore the only aggregate solution, action-state testing in detail
January 11, 2026
Software Testing
Efficient Test Design - The Why, Which, and How.Efficient test design doesn’t only lead to better quality but also decreases the total SDLC cost. Don’t throw your test automation framework away, but extend it with test design automation tools.
January 11, 2026
Software Testing
Fault-Based Testing and the Pesticide Paradox | TestMu AI (Formerly LambdaTest)Most testers know and believe in ‘the 7 principles of software testing’. One of them is the pesticide paradox
January 11, 2026
Software Testing
A Deeper Insights into Test DesignWithout appropriate test design, test automation is worthless as you will execute test cases several times without detecting the bugs in your software. Test design is one of the most important prerequisites of quality.
January 11, 2026
Software Testing
Guide to Model Based Testing To Improve Test Automation | TestMu AI (Formerly LambdaTest)The model based testing approach uses a model to generate test cases. Learn in detail about model based testing and its types with an example.
January 11, 2026
Software Testing
Shift-Left vs Test-First, Which One To Choose? | TestMu AI (Formerly LambdaTest)Shift-left and test-first approaches are close to each other, but test-first is better though more difficult to use. Read the blog to know which method to choose.
January 11, 2026
