A Pizza restaurant is open to public for 12 hours a day and 7

Added on - 18 Sep 2019

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A Pizza restaurant is open to public for 12 hours a day and 7 days a week takes orders through their webapplication which works in real time. There is no dine-in. Completed orders are picked up by customers.Each order need not mean a single pizza but could be a combination of multiple pizzas of multiplevarieties.There are 6 types of pizzas available viz., Veggie Delight, Cheese Rich, Meatsome, Chicken-Bacon, Spicy Sausage and Signature Pizza. All of them are available in 3 different sizes (Small, Medium &Large). Pizza sizes follow the ratio of 1:1.75:2 (small:medium:large). There is no option for custom madeorder or additional sides and drinks. The entire operation consists of five processes: Order; Pizza Making;Baking in Oven; cutting into slices - packing; carry out. Dough is pre-made and is also available in all thethree sizes, ready for use at the start of each work day.In pizza making, appropriate pre-made dough is picked, sauced and is primarily filled with ingredientssuch as various types of cheeses followed by meats and veggies. Pizza making is split into 3 operationslike described and are observed to have following parameters for triangular distribution.OperationsSmallMediumLarge1.Dough & Saucing0.3, 0.4, 0.60.4, 0.7, 0.80.5, 0.7, 1.02.Cheeses0.4, 0.5, 0.60.5, 0.7, 0.90.6, 0.8, 0.93.Meats & Veggies0.3, 0.4, 0.50.4, 0.5, 0.70.5, 0.6, 0.8There are 3 individuals working in kitchen. Depending upon the demand, the number of workersassigned for pizza making changes. Pizza making table at a given time can take eithera) 2 workers working at a time on 2 different pizzas orb) 3 workers working in series by splitting 3 operations equally for making one single pizza orc) 1 worker making the entire pizza by himself.After raw pizza is made, it is moved to oven area. Oven area has 3 parts – Loading Zone, Baking Zone,Unloading Zone. Raw pizza is placed on a conveyor belt in Loading Zone where the queue isaccumulated. Time taken for a raw pizza to enter baking zone from loading zone is approximately 1.5minutes and baking takes 7 minutes irrespective of size. There are two ovens in Oven area. Each ovencan accommodate either 3 Small Pizzas, 2 Medium Pizzas or 1 Large Pizza at a given time and otherpossible combinations.At the unloading area, pizza is collected, cut into slices and packed for carryout by third worker,irrespective of his involvement on Pizza Making table. Cutting and packing takes 15 seconds irrespectiveof pizza size. He is not required for receiving the customer. There is non-kitchen staff allotted for suchjobs.Data collected by store owner is as follows:Orders are constantly distributed at 12 orders/hour in normal working hoursPeak sales time lasts for 3 hours (continuous) and demand varies from 20 to 50 orders/ hourVolume of Individual Orders:60% of orders are for just One Pizza35% of orders constitute Two Pizzas5% of orders constitute Three Pizzas
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