A Comparison between Dedicated and Flexible Manufacturing Systems: Optimization and Sensitivity Analysis

  • Abdul Salam Khan NUST Business School, National University of Science and Technology, Islamabad, Pakistan.
  • Khawer Naeem Department of Industrial Engineering, University of Engineering and Technology, Peshawar, Pakistan.
  • Raza Ullah Khan Department of Mechanical Engineering Technology, University of Technology, Nowshera, Pakistan.


An abrupt change requires a robust and flexible response from a manufacturing system. Dedicated Manufacturing System (DMS) has been a long practiced taxonomy for mass production and minimum varieties. In contrast, Flexible Manufacturing System (FMS) has been introduced for responding to quantity as well as variety issues. This study considers both production taxonomics by using a multi objective model of cost and time. An Integer Linear Programming (ILP) formulation is presented and subsequently validated. The analysis procedure is administered in two phases. In the first phase, comparison of production cost and process time in DMS and FMS is presented. The model is implemented by using an exact solution approach and results show that FMS is a viable option, compared to DMS, according to the criteria of cost, time, and productivity. In the second phase, sensitivity analysis is performed by using several FMS (n) and the impact of cells selection on the performance of system is studied. It is concluded that n=1 (single cell-based FMS) is more relevant for cost minimization; however, n = 6 is a suitable candidate for producing more quantity in given time horizon (process time minimization). Lastly, key findings are reported, and future research avenues are provided.

Jan 1, 2021
How to Cite
KHAN, Abdul Salam; NAEEM, Khawer; KHAN, Raza Ullah. A Comparison between Dedicated and Flexible Manufacturing Systems: Optimization and Sensitivity Analysis. Mehran University Research Journal of Engineering and Technology, [S.l.], v. 40, n. 1, p. 130-139, jan. 2021. ISSN 2413-7219. Available at: <https://publications.muet.edu.pk/index.php/muetrj/article/view/1992>. Date accessed: 20 jan. 2021. doi: http://dx.doi.org/10.22581/muet1982.2101.12.
This is an open Access Article published by Mehran University of Engineering and Technolgy, Jamshoro under CCBY 4.0 International License