Orders Loading and Release in Flow Shops including Outsourcing Networks

Purpose of this paper is to analyse and compare the behavior of workload control models in flow shops of both the MTO (Make-To-Order) and MTS (Make-To-Stock) classes. A simulation model has been built, where a manufacturing cell is loaded through an input control mechanism with shop orders coming from a “pool”. The “pool” itself is fed with planned orders coming from an MRP system. The MRP system releases production orders every planned period and the input control mechanism decides for the actual release of work orders. Conclusions are drawn for the performance of the system with or without an MRP system and with or without the input control mechanism in MTO and MTS environments. Compared to the pure flow shop routing, any set of stations might be excluded from the routing or replaced by subcontractors belonging to an outsourcing network of the manufacturing company. Thus, the general flow shop may still show routing variety with respect to routing lengths, though there is one flow direction with outsourcing interruptions.

[1]  Jwm Will Bertrand,et al.  Integrating material coordination and capacity load smoothing in multi-product multi-phase production systems , 1996 .

[2]  Mauricio G. C. Resende,et al.  Closed-loop job release control for VLSI circuit manufacturing , 1988 .

[3]  Jwm Will Bertrand,et al.  Production Control: A Structural and Design Oriented Approach , 1990 .

[4]  I. P. Tatsiopoulos.  Some aspects of the input/output methods for managing work-in-process inventories , 1989 .

[5]  Ilias P. Tatsiopoulos,et al.  Lead time management , 1983 .

[6]  Brian G. Kingsman,et al.  Job Release: Part of a Hierarchical System to Manage Manufacturing Lead Times in Make-to-order Companies , 1991 .

[7]  Brian G. Kingsman,et al.  A structural methodology for managing manufacturing lead times in make-to-order companies , 1989 .

[8]  Jwm Will Bertrand,et al.  Production control and information systems for component-manufacturing shops , 1981 .

[9]  Roberto Cigolini,et al.  Order review and release strategies ina job shop environment: A review and a classification , 1997 .

[10]  S. T. Enns.  An integrated system for controlling shop loading and work flow , 1995 .

[11]  Wolfgang Bechte.  Load-oriented manufacturing control just-in-time production for job shops , 1994 .

[12]  Martin Land,et al.  Workload control concepts in job shops A critical assessment , 1995 .

[13]  G. Gaalman,et al.  The influence of shop characteristics on workload control , 2000 .

[14]  Lawrence M. Wein,et al.  Scheduling semiconductor wafer fabrication , 1988 .

[15]  Barry L. Nelson,et al.  Statistical Analysis of Simulation Results , 2007 .

[16]  Steven A. Melnyk,et al.  Order review/release: research issues and perspectives , 1989 .

[17]  I. P. Tatsiopoulos.  Simplified production management software for the small manufacturing firm , 1993 .

[18]  Wolfgang Bechte.  Theory and practice of load-oriented manufacturing control , 1988 .

[19]  Keith G. Lockyer,et al.  Quantitative Production Management , 1982 .

[20]  Graham K. Rand,et al.  Decision Systems for Inventory Management and Production Planning , 1979 .

[21]  Kenneth R. Baker,et al.  The effects of input control in a simple scheduling model , 1984 .

[22]  Nyles V. Reinfeld,et al.  Production control , 1959 .

[23]  Jwm Will Bertrand,et al.  Flow rate flexibility in complex production departments , 1991 .

[24]  Brian G. Kingsman,et al.  Modelling input-output workload control for dynamic capacity planning in production planning systems , 2000 .

[25]  Richard H. Deane,et al.  A Loading and Balancing Methodology for Job Shop Control , 1974 .