WOLFRAM SYSTEMMODELER

Retail

Retail model

Diagram

Wolfram Language

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Click for copyable input
SystemModel["SystemDynamics.IndustrialDynamics.Inventory.Retail"]
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Information

This model describes the retail of produced goods. Goods that are being sold are represented by the mass-flow model in the lower part of the graph, whereas the orders for these goods are represented by the mass-flow models in the upper part of the graph. The signal-flow model represents the control of the flow of goods based on the information obtained from their order status.

The retail model is the same model as the distribution model except for the parameter values used.

Public Parameters (12)

AIR

Value: 8

Type: Real

Description: Gain factor for inventory in retail

DCR

Value: 3

Type: Real (wk)

Description: Delay clerical

DHR

Value: 1

Type: Real (wk)

Description: Delay in handling at retail

DIR

Value: 4

Type: Real (wk)

Description: Delay in inventory (and pipeline) adjustment

DMR

Value: 0.5

Type: Real (wk)

Description: Mail delay

DRR

Value: 8

Type: Real (wk)

Description: Delay in smoothing requisitions

DTR

Value: 1

Type: Real (wk)

Description: Transportation delay

DUR

Value: 0.4

Type: Real (wk)

Description: Delay due to unfillable orders

RRRini

Value: 1000

Type: Real (ยน/wk)

Description: Initial requests at retail

RSRini

Value: RRRini

Type: Real

IARini

Value: AIR * RSRini

Type: Real

UORini

Value: RSRini * (DHR + DUR)

Type: Real

Connectors (6)

rrd

Type: MassOutPort

Description: New order demands

ssd

Type: MassInPort

Description: Manufactured goods arriving at retail

uod

Type: MassInPort

Description: Unfilled orders

dfd

Type: MassInPort

Description: Desired delay in filling orders

rrr

Type: MassInPort

Description: New order demands

ssr

Type: MassOutPort

Description: Goods leaving retail

Components (20)

IAR

Type: Level

Description: Produced goods in retail

SSR

Type: Rate_1

Description: Goods leaving retail

SSR_d

Type: SSD_d

Description: Delivery rate at retail

PDR

Type: Rate_1

Description: Orders leaving distribution

Source1

Type: Source

UOR

Type: Level

Description: Unfilled orders

ODR

Type: Rate_1

Description: Orders filled due to delivery

Sink1

Type: Sink

PDR1

Type: PPD1

Description: Manufacturing demand at retail

PDR2

Type: PPD2

Description: Partial manufacturing adjustment for distribution

UNR

Type: Gain

Description: Desired unfilled orders

LAR

Type: LAD

Description: Actual delays in order processing

LDR

Type: LDD

Description: Desired delay in order processing

IDR

Type: Gain

Description: Desired produced goods in retail

DFR

Type: DFD

Description: Desired delay in filling orders

STR

Type: Division

Description: Desired order filling rate

RSR_delayed

Type: DELAY1

Description: Delayed new orders

Transporation_Delay

Type: DELAY3

Description: Transporation_Delay

Order_Delay

Type: DELAY3

Description: Order_Delay

Mail_Delay

Type: DELAY3

Description: Mail_Delay

Used in Examples (4)

InventoryForresterStep

SystemDynamics.IndustrialDynamics.Inventory

Inventory simulation with sinusoidal orders

InventoryForresterSinOneYearCapacity

SystemDynamics.IndustrialDynamics.Inventory

Inventory simulation with sinusoidal orders

InventoryForresterSinOneYear

SystemDynamics.IndustrialDynamics.Inventory

Inventory simulation with sinusoidal orders

InventoryForresterNormalNoise

SystemDynamics.IndustrialDynamics.Inventory

Inventory simulation with random orders