Pengembangan Model Variable Review Period dengan Mempertimbangkan Order Crossover

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Abstract: In this paper, we propose a variable review period model using dynamic programming for  order  crossover  problem.  The  proposed  model  is  compared  to  an  existing  variable  review period model and classical review period in terms of minimum inventory cost. The simulation is applied  with  six  scenarios  and  sensitivity  analysis  is  also  done.  The  results  show  a  variable review period model performs smaller inventory cost for small variation of lead-time compared to classical  review  period  model.  On  the  other  hand,  classical  periodic  review  model  is  sensitive with the changes in the variation of demand distribution and service level. The proposed model gives the better solution compared to variable review period model for the six scenarios with the inventory cost saving as 11-42%. The sensitivity analysis for a variable review period model and a  proposed  model  are  applied  and  compared.  From  sensitivity  analysis,  it  can  be  concluded variable  review  period  with  dynamic  programming  gives  the  best  solution  in  terms  of  the changes of holding cost and ordering cost. It is also shown the smaller holding cost, the smaller percentage of inventory cost savings (between variable review model and the proposed model). 
Keywords: Order crossover, variable review period model
Penulis: Tanti Octavia, Felecia
Kode Jurnal: jptindustridd140437

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Jp Teknik Industri dd 2014