Picking rearrangements

It identifies:

   the processed item from the field ‘depositor’ and ‘item’.

   the picking rearrangement from its number and state of progress of the item container reassignment .

A picking rearrangement campaign can be divided into several picking rearrangement according to physical criteria. 
The division criteria are :
 the store and the actual picking location aisle of the item container to be processed,
 the depositor, the family, the sub-family, the group and sub- group of the items to be processed

Each record of an item container on a picking rearrangement has a status showing its progression.
The status are :
- 1 ‘Wait ideal class: the system during the calculation of ideal classes was not able to assign to an item container an ideal class (either the ideal rotation class, or the ideal volume class, or both) because of an error in the setting or because of lack of available picking locations.
- 2 : Wait current picking blockage : the system had calculated the ideal classes of an item container already assigned to an active picking location (not blocked in input / output). 
The next step of the picking dynamisation for this item container, if the current picking location is not optimal, is to block the current picking location and to assign a new location more suited to the item container.
- 3 : Wait reassignment : the system had calculated the ideal classes of an item container not assigned to a picking location or assigned to a picking location that is blocked in input / output.
The next step of the picking dynamisation for this item container is  to assign a new location to the item container.
- 4 : Wait transfer generation : the item container was reassigned to a new picking location but there are some stock left on the original container to be transferred elsewhere..
- 5 : Wait movements validation : : the item container was reassigned to a new picking location and all the stock of the original location is being transferred.
- 6 : Cancelled : the reassignment of the picking container was cancelled.
- 7 : Validated : the picking container was reassigned to a new location and the stock of the former location were transferred.

This tab contains :
 the characteristics of the original picking locations of the item container to be reassigned
 the characteristics of the new picking locations after reassignment
 the ideal rotation and volume classes  calculated by the process of calculation of ideal classes.

Rotation class

The ideal rotation class of a container corresponds to the rotation class of the picking location to which the container taking into account its promptings will be assigned, if the use of the picking was optimal. 

There are two methods used in determining the ideal rotation class

Method 1 : Calculations carried out according to existing locations

The determination of the rotation class includes :
 the management rules defined on the   sites table
 the management tables of  availabilities

All the containers managed in picking (item container having output movements in history or in forecast and managed in picking dynamisation (output mode function of the item) having an identical group of accessible picking locations, meaning that having the following characteristics identical  :
 depositor (according to the sites table, only if the reassignment is mono depositor)
 container code
 assigned store  (according to the sites table, only if the reassignment is mono store)
 storage type (according to the sites table, only if the reassignment is mono storage type)
 assignment class (according to the sites table, only if the reassignment is mono assignment class)
are classified on the order of the promptings.

At the same time, the system determines the number of picking locations  accessible to these containers by rotation class by taking into account the parameters of the  availability table.

It is therefore possible to assign to containers whose prompting is the most important, the least rotation class (alphabetical order) considering the number of available locations.

Example :
The site has 2 picking locations of class A, 3 picking locations of class B, 2 picking locations of class C defined in CU.
The picking reassignment mode is multi depositors, multi stores, multi assignment class, multi storage types.

The analyse of the 7 references stocked in CU picking gives the following results :

The reassignment to be considered will be the following :
Class B -> Class A : Item 2
Class A -> Class B : Item 3
Class C -> Class B : Item 5
Class B -> Class C : Item 6

Method 2 : Theoretical calculation of the ideal rotation class

The determination of the ideal rotation class is independent of the defined locations and rely only on the interval of accepted promptings set for each rotation class on the rotation classes table.

To each prompting can be directly assigned an ideal rotation class.

Ideal rotation class : corresponds to the ideal rotation class calculated by the method  (location or rotation table) ticked on the sites table.

Rotation class second criterion : corresponds to the ideal rotation class of the item container calculated by the method (location or rotation class) not ticked on the sites table.

Volume class

The ideal volume class of a container corresponds to the volume class of the picking location to where the container will be assigned considering its volumic flow, if the use of the pickings existing on the site was optimal.

There are two methods used in determining the ideal volume class

Method 1 : Calculations carried out according to existing locations

The determination of the volume class includes :
 the management rules defined on the sites table
 the management tables of availabilities

All the containers managed in picking (item container having output movements in history or in forecast and managed in picking dynamisation (output mode function of the item) having an identical group of accessible picking locations, meaning that having the following characteristics identical  :
 depositor (according to the sites table, only if the reassignment is mono depositor)
 container code
 assigned store (according to the sites table, only if the reassignment is mono store)
 storage type (according to the sites table, only if the reassignment is mono storage type)
 assignment class (according to the sites table, only if the reassignment is mono assignment class)
are classified on the order of volumic flows.

At the same time, the system determines the number of picking locations  accessible to these containers by volume class by taking into account the parameters of the  availability table and the  parameters of the volume classestable.

It is therefore possible as in the determination of the ideal rotation class, to assign to containers whose volumic flow is the most important, the least volume class (alphabetical order) considering the available locations.

Method 2 : Theoretical calculation of the ideal volume class

The determination of the ideal volume class is independent of the defined locations and rely only on the percentage of the target cover set on the sites table.

To each volumic flow may be associated an ideal location volume and therefore an ideal volume class. 

Ideal picking volume = Volumic flow * target cover

Ideal volume class : corresponds to the ideal volume class calculated by the method  (location or target cover) ticked on the sites table.

Volume class second criterion : corresponds to the ideal volume class of the item container calculated by the method (location or volume class) not ticked on the sites table.

Current address

The current address corresponds to the origin picking location (store + address) of the item container to be reassigned if it has one.

The system specifies :
 all the physical characteristics of the location : rotation class, assignment class, volume class and storage type (specifies the management rules of the location),
 the date of the last reassignment of the current picking location.
 the end of life date of the processed item set on the item record so as to know if the item to be reassigned is in end of life or not.
 the date of the first reassignment of the picking location corresponding to the date of the first output movement of the current picking location of the item container processed. 

Assigned address

The assigned address corresponds to the new picking location (store + address) assigned to the item container during the picking rearrangement.

The system specifies :
 all the physical characteristics of the location : rotation class, assignment class, volume class and storage type (specifies the management rules of the location),
 the assignment date of the item container to this new location.
 if the new picking location is a temporary or a definitive picking location for the item container.

This details the statistical data and the mean data calculated by the system for each item container managed in picking (item with at least a picking output movement in history or in forecast) and managed in picking dynamisation (output mode function).
These data are necessary in determining the ideal classes of each item container. 

Outputs

This part sums up for the processed item container and for the archived period of ideal classes calculation processing :
 the number of picking output movements of the processed item container
 the number of each group of picking output movements whose wave, DO, DO line, PO and parcel information are identical.
The calculation of the number of take (frequency of access to the location) will be carried out for each group of output movements whose wave, DO, DO line, PO and parcel information are identical because a set of takes for a DO line might generated several movements.
 The number of preparation orders corresponding to picking output movements
 The number of DO lines corresponding to picking output movements.

Transfers/Replenish

This part sums up for the processed item container and for the archived period of ideal classes calculation processing :
 The number of replenishment movements (merging of flows or not) and the number of transfer movements (merging of flows or not) whose item and the item container taken corresponds to the item container processed.
 The number of transfer/replenishment order corresponding to the counted transfer/replenishment movements.
The calculation of the number of take (frequency of access to the location) will be carried out for each replenishment or transfer because a set of takes for an item container on a transfer/replenishment order  might generate  several movements. .

Forecasts

This part sums up for the processed item container and for the ‘forecasted’ period of processing of the calculation of the  ideal classes, the number of picking output movements corresponding to the sales forecast set on the  forecasts table of output.

The start date of the forecast corresponds to the day included on the period of the calculation of the processing of the ideal classes and after the last movement of the site.

The number of forecasted output movements is proportional to the ‘forecasted‘ period of the processing.

Total

No containers : corresponds to the total number of containers of each movement  (output, transfer and forecast) on the period taken into account.

Number PAC : corresponds to the quantity in unit of the number of containers

Nb takes : corresponds to the total number of takes associated to each  movement  (output, transfer and forecast) on the period taken into account.

The number of take cannot be inferred only of the number and the nature of the movements.
Indeed, a movement of several containers might correspond to 1 take for a light item and to several takes for heavy items.
Thus, the takes tableallows to specify the maximum number of containers per take according to the weight and the volume of the container.

The calculation of the number of takes will be carried out :
 for each set of output movements whose wave, DO, DO line, PO and parcel information are identical
 for the set  of replenishment or transfer movements
 for each forecast movement

Nb promptings :corresponds to the total promptings associated to each movement  (output, transfer and forecast) on the period taken into account.
A prompting corresponds a take weighted by a coefficient suppose to measure the difficulty of the handling of the take.  
This coefficient is set on the promptings tableaccording to the weight and the volume of the take.

Example :
Let an output movement of 25 CU of the item A whose palletisation plan is the following :
CC1 of 10 UCU
PP1 of10 CC1

The decomposition of the movement according to the pattern principle gives the following result :
25 CU = 2 CC1 + 5 UCU

The calculation table of the take indicates that :
Each CC1 container corresponds to a take
For the CU level, 2 CU makes up a take

The calculation table of the prompting indicates that :
The weighing coefficient to be applied on every pick de CC1 est 1,2.
The weighing coefficient to be applied on every pick de 2 UC est 1,1
The weighing coefficient to be applied on every pick de 1 UC est 1.

The prompting related to the movement is therefore :
(2*1.2) + (2*1.1) + (1*1) = 5.6

Weight :Corresponds to the total weight of the containers of the processed  movements (output, transfer and forecast) on the period taken into account

Volume :Corresponds to the total volume of the containers of the processed  movements (output, transfer and forecast) on the period taken into account.

Weighted total

Nb promptings :corresponds to the total of the promptings weighted by a seasonality coefficient, associated to each movement  (output, transfer and forecast) on the period taken into account..

The seasonality coefficient applied to each  prompting allows to weight in different way the promptings related to a given period and is defined from the   seasonalities table in the following manner :

Seasonality coefficient  = weighing of the period of reassignment /weighing coefficient of the  period of the processed movement

Weight :Corresponds to the total weight of the containers of the processed  movements (output, transfer and forecast) on the period taken into account, weighted by the seasonality coefficient.

Volume  :Corresponds to the total volume of the containers of the processed  movements (output, transfer and forecast) on the period taken into account, weighted by the seasonality coefficient.

Weighted mean per day

Nb promptings :The mean daily prompting is inferred from the total number of the weighted promptings by the formula :
WeightedPrompting (/ day) = Total nbr of weighted promptings / nbr of workable days

It is the mean daily prompting that allows to determine the ideal rotation classes of the item containers.

Weight 
The mean daily weight is inferred from the weighted total weight by the formula :
Weighted weight (/ day) = Weighted total weight / nbr of workable days

Volume
The mean daily volume (volumic flow) is inferred from the weighted total volume by the formula:
Volumic flow (Vol / day) = Weighted total volume / nbr of workable days

The mean coverage of the picking associated to a container, expressed in days, is inferred from the volumic flow by the formula :
Coverage (Day) = Volume of picking / volumic flow

The system uses the data ‘volume of the picking location’, calculated from the volumic flow and the coverage set on the sites table, to determine the ideal volume classes of the item containers.

This tab sums up :
 the information of the campaign launched in picking rearrangement
 the status of progress of the picking rearrangement and of the campaign.

Campaign

This part displays the container processed on the campaign, the reference of the campaign set during the launching of the process of the calculation of ideal classes, the campaign number generated by the system and the status of progress of the campaign.

The campaign has a status that shows its progress.
The status are :
- 1 ‘Wait ideal class’ : means that the rearrangement picking the least advanced of the campaign is on the status ‘Wait ideal class’
- 2 : Wait blockage of current picking : means that the rearrangement picking the least advanced of the campaign is on the status ‘Wait blockage of current picking’
- 3 : Wait reassignment: means that the rearrangement picking the least advanced of the campaign is on the status ‘Wait reassignment’.
- 4 : Wait transfer generation : means that the rearrangement picking the least advanced of the campaign is on the status ‘Wait transfer generation’.
- 5 : Wait movement validations : means that the rearrangement picking the least advanced of the campaign is on the status ‘Wait movement validation’ 
- 6 : Cancelled : means that all the rearrangement pickings of the campaign were cancelled.
- 7 : Validated : means that all the rearrangement pickings of the campaign were validated.

Ranges

This part displays the processing period of the calculation of the ideal classes of the campaign.

Total start/end: corresponds to the processing dates of the calculation of ideal classes set during the launching by the user.

End archive : corresponds to the date of the last movement of the site included in the processing period.

Nr workable days:
it is determined from :
 the movements of the site for the archived period [Start date of the processing, End history date].
If there is a movement for the day of the processed period then it is considered as workable if not then it is considered as holiday.
 the calendarfor the forecast period [End history date + 1 day, End date of the processing]

Start/end reallocation : corresponds to the period during when the picking reorganization will be actualized.
These dates were set by the user during the launching of the calculation of ideal classes.

Ideal classes

Allows to display the method used for the calculation of the ideal rotation class and the ideal volume class.

Picking rearrangement

This part allows to show the status of progress of the picking rearrangement processed.

The picking rearrangement status are :
- 1 ‘Wait ideal class’ : means that the record the least advanced of the rearrangement picking is on the status ‘Wait ideal class’
- 2 : Wait blockage of current picking : means that the record the least advanced of the rearrangement picking is on the status ‘Wait blockage of current picking’
- 3 : Wait reassignment: means that the record the least advanced of the rearrangement picking is on the status ‘Wait reassignment’.
- 4 : Wait transfer generation : means that the record the least advanced of the rearrangement picking is on the status  ‘Wait transfer generation’.
- 5 : Wait movement validations : means that the record the least advanced of the rearrangement picking is on the status ‘Wait movement validation’ 
- 6 : Cancelled : means that all the records of the rearrangement pickings were cancelled.
- 7 : Validated : means that all the records of the rearrangement pickings were validated.

Sort

This part allows to define the characteristics of the picking rearrangement : mono or multi store, mono or multi aisle, mono or multi depositor, mono or multi family, mono or multi sub-family, mono or multi group  and mono or multi sub-group.