Aggregate planning

profileel
hw1_2014_data_new.xlsx

Data

Aggregate planning in Union brewery
Don't miss the commnets in the cells below!
Table 1: Sales data for the regular Union (0.5 liter can) in 1000s for the last 3 years
Units (where 1 unit is 1000 products)
month 2011 2012 2013 2014
Jan 493 498 564
Feb 415 389 604
Mar 635 880 1088
Apr 895 1198 1267
May 1004 902 1145
Jun 1236 1321 1261
Jul 1610 1567 1485
Avg 1781 1926 2061
Sep 1504 1727 1901
Oct 1076 1319 1402
Nov 338 287 215
Dec 255 303 578
Tabela 2: Data on production and cost parameters
Starting number of workers 18
Worker capacity (units/worker/month) 40
Number of regular hours/month 176
Starting inventory 230
Safety stock
Jakšič, Marko: Safety stock should equal a given % of predicted sales in that month (this means that the safety stock level will be changing from month to month according to the predicted sales).
20% of predicted monthly sales
Cost of regular work (€/hour) 8
Cost of hiring (€/worker) 800
Cost of letting off (€/worker) 1000
Inventory holding cost (€/unit/month) 2