fa Mathematical Modeling and Applications of OR Mathematical Modeling and Applications of OR پژوهشی Original Following the increasing growth of urbanization in recent decades in Iran, housing has become one of the most critical issues in the country. In this regard, mass production of housing has received more attention, and residential complexes can be considered a physical manifestation of the idea of mass housing in cities. Operational efficiency in residential construction production systems is evaluated based on average house completion time, the number of houses under construction, and processing time of activities. However, these systems are prone to non-uniformity problems and suspensions resulting from different variables, such as adverse weather conditions, workplace accidents, fluctuations in house demand, and rework. The purpose of this research is to show the effect of reprocessing on the manufacturing process.  In this study, the rework parameter and the variables of frequency, duration, and time of call-back have been considered. Also, the effects of these parameters on tangible performance criteria have been investigated. In this regard, we apply the combined approach of discrete-event simulation and computational modeling; then, we compare the results. Measurements show that the systems fragmented by repeated and short repetitions while referring to early are in optimal performance. Discrete-event Simulation, Computational Modeling, Rework, Call-back duration, Rework frequency and time 49 63 http://iors.ir/journal/browse.php?a_code=A-10-1422-34&slc_lang=fa&sid=1 Milad Abolghasemian Milad Abolghasemian m.abolghasemian.bt@gmail.com 1111111111 1111111111 Yes Islamic Azad University, Branch of Lahijan, Lahijan, Iran Islamic Azad University, Branch of Lahijan, Lahijan, Iran Adel Pourghader Chobar Adel Pourghader Chobar apourghader@gmail.com 1111111111 1111111111 No Qazvin Branch, Islamic Azad University, Qazvin Qazvin Branch, Islamic Azad University, Qazvin Mehdi AliBakhshi Mehdi AliBakhshi Mehdi.alibakhshi@modares.ac.ir 1111111111 1111111111 No Tarbiat Modares University Tarbiat Modares University Awrin Fakhr Awrin Fakhr awrinfakhr@gmail.com 1111111111 1111111111 No Islamic Azad University, Branch of Sanandaj, Kordestan, Iran Islamic Azad University, Branch of Sanandaj, Kordestan, Iran Samaneh Moradi Pirbalouti Samaneh Moradi Pirbalouti Samaneh_moradi@ut.ac.ir 1111111111 1111111111 No College of engineering, University of Tehran, Tehran, Iran College of engineering, University of Tehran, Tehran, Iran