Supplementary materials for Towards an Intelligent Platform for Supporting Quality Assessment in Blockchain Systems

Evaluation Questionnaire [omitted for review] November 2025 [omitted for review] Instructions Please answer based on your experience using the platform. Each statement should be rated on a scale from 1 to 5, where: •(1) Strongly Disagree •(2) Disagree •(3) Neutral •(4) Agree •(5) Strongly Agree Evaluation of the Platform Perceived Usefulness 1. The platform helps me identify suitable quality metrics for a given evaluation scenario. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 2. Using the platform improves my understanding of software quality metrics and their applicability. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 3. The platform supports my decision-making during quality assessment activities. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 4. Overall, the platform is useful for evaluating blockchain-based systems. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 Perceived Ease of Use 5. Learning to use the platform was easy for me. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 6. The platform’s interface is intuitive and easy to navigate. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 7. I can find the information I need in the platform without difficulty. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 8. Interacting with the platform’s features feels natural and straightforward. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 1 Attitude Toward Use 9. I have a positive opinion about using the platform in evaluation tasks. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 10. I enjoy using the platform to explore and apply quality metrics. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 11. I feel confident when using the platform for quality evaluations. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 12. I believe using the platform contributes positively to my work or research. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 Behavioral Intention 13. I intend to use the platform again in future projects or studies. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 14. I would recommend the platform to colleagues or other researchers. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 15. I plan to integrate the platform into my workflow for quality assessment activities. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 16. I would like to continue using the platform as part of my evaluation process. ( ) 1 ( ) 2 ( ) 3 ( ) 4 ( ) 5 2