TestMu AI Author
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
Aggregate Model-Based Testing With Action-State TestingAggregate model-based testing merges stateless and stateful models. Action-state testing builds the model, covers requirements, and reveals missing actions.
August 25, 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.
June 16, 2026
Software Testing
Fault-Based Testing and the Pesticide ParadoxMost testers know and believe in ‘the 7 principles of software testing’. One of them is the pesticide paradox
September 2, 2026
Software Testing
A Deeper Insight into Test DesignTest design decides what your automation actually checks. Learn the steps of test design, the main technique classes, and how to choose test selection criteria.
August 26, 2026
Software Testing
Shift-Left vs Test-First, Which One To Choose?Shift-left and test-first approaches are close to each other, but test-first is more effective though harder to apply. Learn which method to choose and why.
August 14, 2026
Software Testing
The Golden Age of Software TestingThe Golden Age of Software Testing produced the test selection criteria and coupling effect hypothesis that still shape test design today.
August 31, 2026
