Main Article Content

Abstract

This paper presents a comparative simulation study of real-time systems, focusing on Hard, Firm, and Soft Real-Time models. The system is implemented using C++ to simulate task execution under a fixed deadline constraint. The study evaluates system behavior based on general performance aspects such as deadline adherence, task handling, and execution behavior. The results demonstrate clear differences among the three models. The Hard Real-Time system enforces strict timing constraints, ensuring high reliability but limiting flexibility in task execution. The Firm Real-Time system provides a balanced approach by discarding late tasks while maintaining system continuity. The Soft Real-Time system prioritizes task completion over strict timing accuracy, resulting in higher flexibility. The study is based on fundamental concepts of real-time systems, particularly scheduling theory and deadline-based execution models. The main contribution is a simple simulation framework that highlights the trade-offs between timing strictness, flexibility, and system performance.

Keywords

Real-time systems, Hard real-time, Firm real-time, Soft real-time, Deadline scheduling.

Article Details

Author Biographies

Abdusamea I. A. Omer, Department of Computer Engineering and Information Technology, Faculty of Engineering, Sabratha University, Sabratha, Libya

Department of Computer Engineering and Information Technology, Faculty of Engineering,
Sabratha University, Sabratha, Libya

Ibtihal Al-Ajeeli Ali Al-Mrabet, Department of Computer Science, Faculty of Science, University of Azzawia, Azzawia, Libya

Department of Computer Science, Faculty of Science, University of Azzawia, Azzawia, Libya

Haneen Nouri Al-Khunjari Al-Juaidi, Department of Computer Science, Faculty of Science, University of Azzawia, Azzawia, Libya

Department of Computer Science, Faculty of Science, University of Azzawia, Azzawia, Libya

How to Cite
Omer, A. I. A., Al-Mrabet, I. A.-A. A., & Al-Juaidi, H. N. A.-K. (2026). A PRACTICAL COMPARISON BETWEEN HARD, FIRM, AND SOFT REAL-TIME APPLICATIONS: Issue 14 - Journal of Applied Science (Apr-2025). Journal of Applied Science. Retrieved from https://jas.sabu.edu.ly/index.php/JS/article/view/285

Similar Articles

1 2 3 4 > >> 

You may also start an advanced similarity search for this article.