JP2024047124A - PLANNING SUPPORT DEVICE, PLANNING SUPPORT METHOD, AND PLANNING SUPPORT PROGRAM - Google Patents

Abstract

[Problem] The objective is to reduce the user's workload by changing the production plan for a child item in conjunction with changes to a parent item on a schedule planning screen. [Solution] A planning support device 100 supports the creation of a production plan for a parent item and a child item. A planning screen display unit 110 displays a schedule planning screen including a production plan and workload for each schedule for each parent item and child item. A change acceptance unit 120 accepts changes to the production plan on the schedule planning screen for the parent item, and changes the workload based on the changes to the production plan. A linked change unit 130 changes the production plan and workload on the schedule planning screen for the child item in conjunction with changes to the production plan for the parent item. [Selected Figure] Figure 2

Description

This disclosure relates to a planning support device, a planning support method, and a planning support program.

MRP is an abbreviation of Material Resource Planning, which is a management technique for planning the required quantities of materials, such as parts and materials, required for product production activities, and for purchasing and producing based on the plan.
MRP makes it possible to automatically generate order data.

In Patent Document 1, when a change occurs in the shipping sales quantity, planned production quantity, or planned order quantity for each finished product, the change is reflected in the inventory quantity of the finished product, and an order quantity input field is displayed for inputting the required number of parts.

JP 2013-101489 A

Order data automatically generated by MRP does not allow for confirmation of the link between a parent item and multiple child parts.
In addition, although it is possible to manually change each item in the order data automatically generated by MRP, even if the order data of the parent item is changed, the order data of the child parts is not changed accordingly. Therefore, there is a problem that it takes a lot of time to change the order data of the child parts in accordance with the change in the order data of the parent item. Furthermore, if the order data is planned taking into account the setup man-hours, it is necessary to change it taking into account the setup man-hours, which is very time-consuming.

The technology in Patent Document 1 makes it possible to change the number of completed items required based on changes in order data, but it only displays an input field for the order quantity of required parts, and does not automatically change the production plan for required parts.

The purpose of this disclosure is to significantly reduce the workload of schedule planners by changing the production plan of a child item in conjunction with the change to the parent item when the production plan of a parent item is changed on a schedule planning screen that includes the daily workload and production plan of each item.

A planning support device according to the present disclosure is a planning support device that supports the creation of a production plan for a parent item and a child item required for the production of the parent item, comprising:
a planning screen display unit that displays, for each of the parent items and the child items, information including a production plan for each schedule and workload required to realize the production plan as a schedule planning screen;
a change acceptance unit that accepts changes to the production plan on the schedule planning screen of the parent item and changes the workload based on the changes to the production plan;
and a linked change unit that changes the production plan and the load man-hours on the schedule planning screen of the child item in linkage with a change to the production plan on the schedule planning screen of the parent item.

In the planning support device according to the present disclosure, when a production plan for a parent item is changed on a schedule planning screen that includes the daily production plan and workload of the item, the production plan for the child item is changed in conjunction with the change to the parent item. Therefore, the planning support device according to the present disclosure has the effect of significantly reducing the workload of the schedule planner.

FIG. 2 is a diagram showing an overview of processing in the planning support device according to the first embodiment. FIG. 1 is a diagram showing an example of the configuration of a planning support device according to a first embodiment. FIG. 4 is a flow diagram showing an example of the operation of the planning support device according to the first embodiment. FIG. 4 is a diagram showing an example of the configuration of an order table according to the first embodiment. FIG. 4 is a diagram showing an example of the configuration of an order table according to the first embodiment. FIG. 4 is a diagram showing an example of the configuration of a supplier master according to the first embodiment. FIG. 2 is a schematic diagram showing an example of the configuration of an item structure master and the relationship between parent items and child items according to the first embodiment. FIG. 13 is a diagram showing an example of the configuration of an inventory receipt/payment table according to the first embodiment. 13A and 13B are diagrams showing examples of a schedule planning screen and a collapse target list according to the first embodiment. FIG. 13 is a diagram showing an example of the configuration of a schedule planning screen for a parent item in the first embodiment. FIG. 13 is a diagram showing an example of the configuration of a schedule planning screen for child items according to the first embodiment. FIG. 4 is a diagram showing an example of the configuration of a collapse target list according to the first embodiment. FIG. 13 is a diagram showing an example of a change to a parent item schedule planning screen in the first embodiment. FIG. 13 is a diagram showing an example of a change to a schedule planning screen for a child item according to the first embodiment. FIG. 4 is a diagram showing a display example of a warning message according to the first embodiment. FIG. 13 is a diagram showing another example of a change to the parent item schedule planning screen in the first modification of the first embodiment. FIG. 13 is a diagram showing another example of a change in the schedule planning screen for child items in the first modification of the first embodiment. FIG. 13 is a schematic diagram showing an example of the configuration of a schedule planning screen and the relationship between parent items and child items in accordance with a second modification of the first embodiment. FIG. 13 is a diagram showing an example of the configuration of a parent item schedule planning screen in accordance with the second modification of the first embodiment. FIG. 13 is a diagram showing an example of the configuration of a schedule planning screen for child items according to the second modification of the first embodiment. FIG. 13 is a diagram showing an example of the configuration of a collapse target list according to the second modification of the first embodiment. FIG. 13 is a diagram showing an example of a change to the parent item schedule planning screen 40 in accordance with the second modification of the first embodiment. FIG. 13 is a diagram showing an example of a change to a schedule planning screen for child items in the second modification of the first embodiment. FIG. 13 is a diagram showing a configuration example of a planning support device according to a third modification of the first embodiment.

The present embodiment will be described below with reference to the drawings. In each drawing, the same or corresponding parts are given the same reference numerals. In the description of the embodiment, the description of the same or corresponding parts will be omitted or simplified as appropriate. The arrows in the drawings mainly indicate the flow of data or the flow of processing. Furthermore, the relationship between the sizes of the components in the drawings may differ from the actual relationship. Furthermore, in the description of the embodiment, directions or positions such as up, down, left, right, front, back, front, back, etc. may be indicated. These notations are given for the convenience of explanation and do not limit the arrangement, direction, or orientation of the device or display, etc.

Embodiment 1.
***Configuration Description***
FIG. 1 is a diagram showing an overview of a process in a planning support device 100 according to the present embodiment.
An overview of the functions of a planning support device 100 according to this embodiment will be described with reference to FIG.
The planning support device 100 displays a schedule planning screen 40 based on the order table 32 , the supplier master 33 , the item configuration master 34 , and the inventory receipt/delivery table 35 .
The order table 32 is information generated by MRP based on the order table 31, taking into account the supplier master 33, the item configuration master 34, and the inventory receipt and payment table 35, for example.
The schedule planner 60 checks the production plan using the schedule planning screen 40 for the parent item and the child item, and if it is determined that a change is necessary, makes the change on the schedule planning screen 40 .
The detailed configuration and operation of the planning support device 100 will be described later.

FIG. 2 is a diagram showing an example of a configuration of the planning support device 100 according to the present embodiment.
The planning support device 100 is a device that supports the planning of a production plan for a parent item and a child item required for the production of the parent item.

The planning support device 100 is a computer. The planning support device 100 includes a processor 910, as well as other hardware such as a memory 921, an auxiliary storage device 922, an input interface 930, an output interface 940, and a communication device 950. The processor 910 is connected to the other hardware via signal lines and controls the other hardware.

The planning support device 100 has, as its functional elements, a planning screen display unit 110, a change acceptance unit 120, a linkage change unit 130, a warning display unit 140, and a memory unit 150. The memory unit 150 stores an order table 32, a customer master 33, an item configuration master 34, and an inventory receipt and payment table 35.

The functions of the plan screen display unit 110, the change acceptance unit 120, the interlocking change unit 130, and the warning display unit 140 are realized by software. The storage unit 150 is provided in the memory 921. The storage unit 150 may be provided in the auxiliary storage device 922, or may be provided separately in the memory 921 and the auxiliary storage device 922.

The processor 910 is a device that executes a planning support program. The planning support program is a program that realizes the functions of the planning screen display unit 110, the change acceptance unit 120, the linkage change unit 130, and the warning display unit 140.
The processor 910 is an IC that performs arithmetic processing. Specific examples of the processor 910 are a CPU, a DSP, and a GPU. IC is an abbreviation for Integrated Circuit. CPU is an abbreviation for Central Processing Unit. DSP is an abbreviation for Digital Signal Processor. GPU is an abbreviation for Graphics Processing Unit.

The memory 921 is a storage device that temporarily stores data. Specific examples of the memory 921 are SRAM and DRAM. SRAM is an abbreviation for Static Random Access Memory. DRAM is an abbreviation for Dynamic Random Access Memory.
The auxiliary storage device 922 is a storage device that stores data. A specific example of the auxiliary storage device 922 is a HDD. The auxiliary storage device 922 may also be a portable storage medium such as an SD (registered trademark) memory card, a CF, a NAND flash, a flexible disk, an optical disk, a compact disk, a Blu-ray (registered trademark) disk, or a DVD. Note that HDD is an abbreviation for Hard Disk Drive. SD (registered trademark) is an abbreviation for Secure Digital. CF is an abbreviation for CompactFlash (registered trademark). DVD is an abbreviation for Digital Versatile Disk.

The input interface 930 is a port connected to an input device such as a mouse, a keyboard, or a touch panel. Specifically, the input interface 930 is a USB terminal. The input interface 930 may also be a port connected to a LAN. USB is an abbreviation for Universal Serial Bus. LAN is an abbreviation for Local Area Network.

The output interface 940 is a port to which a cable of a display device 941 such as a display is connected. Specifically, the output interface 940 is a USB terminal or an HDMI (registered trademark) terminal. Specifically, the display is an LCD. The output interface 940 is also called a display interface. HDMI (registered trademark) is an abbreviation for High Definition Multimedia Interface. LCD is an abbreviation for Liquid Crystal Display.

The communication device 950 has a receiver and a transmitter. The communication device 950 is connected to a communication network such as Wi-Fi (registered trademark), a LAN, the Internet, or a telephone line. Specifically, the communication device 950 is a communication chip or a NIC. NIC is an abbreviation for Network Interface Card.

The planning support program is executed in the planning support device 100. The planning support program is loaded into the processor 910 and executed by the processor 910. The memory 921 stores not only the planning support program but also the OS. OS is an abbreviation for Operating System. The processor 910 executes the planning support program while executing the OS. The planning support program and the OS may be stored in the auxiliary storage device 922. The planning support program and the OS stored in the auxiliary storage device 922 are loaded into the memory 921 and executed by the processor 910. Note that a part or all of the planning support program may be incorporated into the OS.

The planning support device 100 may include multiple processors that replace the processor 910. These multiple processors share the task of executing the planning support program. Each processor is a device that executes the planning support program in the same way as the processor 910.

The data, information, signal values and variable values used, processed or output by the planning support program are stored in memory 921, auxiliary storage device 922, or in a register or cache memory within processor 910.

The "parts" of the plan screen display unit 110, the change acceptance unit 120, the interlocking change unit 130, and the warning display unit 140 may be read as "circuit,""step,""procedure,""process," or "circuitry." The planning support program causes a computer to execute a plan screen display process, a change acceptance process, an interlocking change process, and a warning display process. The "processes" of the plan screen display process, the change acceptance process, the interlocking change process, and the warning display process may be read as "program,""programproduct,""computer-readable storage medium storing a program," or "computer-readable recording medium recording a program." The planning support method is a method performed by the planning support device 100 executing the planning support program.
The planning support program may be provided in a state stored in a computer-readable recording medium. Also, the planning support program may be provided as a program product.

*** Operation Description ***
Next, an operation of the planning support device 100 according to the present embodiment will be described. The operation procedure of the planning support device 100 corresponds to a planning support process and a planning support method. Also, a program that realizes the operation of the planning support device 100 corresponds to a planning support program.

FIG. 3 is a flow diagram showing an example of the operation of the planning support device 100 according to the present embodiment.
First, in step S101, the planning support device 100 is started.

<Planning screen display process>
<<Display of Schedule Planning Screen 40: Step S102>>
In step S102, the planning screen display unit 110 displays information including a production plan for each schedule and workload required to realize the production plan for each parent item and child item as the schedule planning screen 40. A child item is an item required for the production of a parent item.
The planning screen display unit 110 displays a schedule planning screen 40 for each parent item and child item based on the order table 32, supplier master 33, item structure master 34, and inventory receipt and payment table 35. The order table 32 is information generated by MRP based on the order table 31, for example, taking into account the supplier master 33, item structure master 34, and inventory receipt and payment table 35. The order table 32 may be generated by MRP inside the planning support device 100. In that case, the planning support device 100 has the order table 31. Alternatively, the order table 32 may be generated by a device external to the planning support device 100 and transmitted to the planning support device 100.

Here, we will explain the order table 31, the order table 32, the customer master 33, the item configuration master 34, and the inventory receipt and payment table 35.

FIG. 4 is a diagram showing an example of the structure of the order table 31 according to the present embodiment.
The order table 31 is a list of information on ordered items.
The order table 31 includes information such as a serial number 311 , an item number 312 , a customer 313 , a delivery date 314 , and a quantity 315 .

FIG. 5 is a diagram showing an example of the configuration of the order table 32 according to the present embodiment.
The order table 32 is a list of information on items to be ordered. Items to be ordered are items that need to be ordered in order to properly produce and deliver ordered items.
The order table 32 includes information such as an order sequence number 321 , an item 322 , a supplier 323 , a delivery date 324 , and a quantity 325 .
Note that the order includes a production order to an in-house department and an order to a supplier. Therefore, the supplier 323 includes information such as Line 1 or Line 2, which is an in-house department.

FIG. 6 is a diagram showing an example of the configuration of the supplier master 33 according to the present embodiment.
The supplier master 33 is a list of information on suppliers with which the company carries out transactions such as receiving orders, placing orders, and delivering goods.
The supplier master 33 includes information such as supplier 331 , supplier category 332 , and available man-hours 333 .
The reserved man-hours 333 is the man-hours that the in-house department has in one day when the client category 332 is an in-house department. For example, the unit is expressed in hours.

FIG. 7 is a diagram showing an example of the configuration of the item structure master 34 according to the present embodiment, and a schematic diagram showing the relationship between parent items and child items.
The item structure master 34 is information indicating the relationship between a parent item and a child item required for the production of the parent item.
The item configuration master 34 includes information such as parent item 341 , child item 342 , pre-setup time 343 , processing time 344 , post-setup time 345 , and supplier 346 .

The schematic diagram shows, for example, that item B is produced from pressed item B, and pressed item B is produced from material B. In this case, item B and pressed item B have a parent item (item B) and child item (pressed item B) relationship. Pressed item B and material B also have a parent item (pressed item B) and child item (material B) relationship.

The pre-setup time 343 indicates the setup time required before processing when producing the parent item 341 from the child item 342 .
The post-setup time 345 indicates the setup time required after the processing time when producing the parent item 341 from the child item 342 .
Setup time is also called setup man-hours.

FIG. 8 is a diagram showing an example of the configuration of the inventory receipt/payment table 35 according to the present embodiment.
The inventory receipt/payment table 35 stores information indicating the planned receipt and payment of inventory items.
The inventory receipt/payment table 35 includes information such as an inventory sequence number 351 , an item 352 , a receipt/payment category 353 , a receipt/payment date 354 , and a quantity 355 .

FIG. 9 is a diagram showing an example of a schedule planning screen 40 and a collapse target list 50 according to the present embodiment.
9 shows an example of a configuration in which a schedule planning screen 40 and a collapse target list 50 are displayed on a display device 941. Note that a schematic diagram showing the relationship between parent items and child items as shown in the lower diagram of FIG.
On the schedule planning screen 40, a schedule planning screen 40 for a parent item and a schedule planning screen 40 for a child item are displayed side by side.
In addition, with regard to the collapse target list 50 described later, the collapse target list 50 of parent items and the collapse target list 50 of child items are displayed side by side.

FIG. 10 is a diagram showing an example of the configuration of a parent item schedule planning screen 40 according to this embodiment.
FIG. 11 is a diagram showing an example of the configuration of a schedule planning screen 40 for child items according to this embodiment.
The planning screen display unit 110 displays a schedule planning screen 40 for each of the parent item and the child item. As shown in Fig. 9, the left diagram shows the schedule planning screen 40 for the parent item, and the right diagram shows the schedule planning screen 40 for the parent item.

On the schedule planning screen 40, a production plan 401 and workload 402 for each schedule 403 are displayed for each item produced in each in-house department.
The production plan 401 is displayed, which consists of man-hours 41 [hours], planning results 42 [quantity], current plan 43 [quantity], incoming goods 44 [quantity], outgoing goods 45 [quantity], and inventory 46 [quantity].
The planning result 42 [quantity] is set to the quantity of the corresponding schedule in the order table 32 generated by MRP, for example. The planning result 42 is also called the MRP result.
The current plan 43 [quantity] is set to the same quantity as the plan result 42 [quantity].
The warehousing 44 [quantity], the shipping 45 [quantity], and the inventory 46 [quantity] are set based on the order table 32 and the inventory receipt/delivery table 35 .
The man-hours 41 [hours] are set based on the order table 32 and the item configuration master 34 .
The above notations such as [quantity] and [time] indicate the units of numbers shown in FIG.

In the parent item schedule planning screen 40 of FIG. 10, a production plan 401 and workload 402 are displayed for each schedule 403 for each parent item of items A, B, and C in the in-house department line 1.
For example, for item B on 6/6, the quantity "200" of item B on 6/6 is set in the planning result [quantity] from the order table 32. The same quantity "200" as the planning result [quantity] is set in the current planning [quantity]. For inventory [quantity], the quantity "200" is set based on the inventory up to the previous day and the information in the inventory receipt/payment table 35.

In addition, the planning screen display unit 110 calculates the workload 402 required to realize the current plan 43 on the schedule, based on the item structure master 34 in which the pre-setup time, processing time, and post-setup time for producing a parent item from a child item are set.
Specifically, the following applies:

The man-hours 41 are calculated from the order table 32 and the item configuration master 34, taking into consideration pre-setup time and post-setup time as follows:
(Example) For item B on 6/6, pre-setup time: 900 [seconds]
Processing time: 180 seconds/piece
Post-processing time: 900 [sec]
Quantity: 200 [pieces]
Man-hours for item B = pre-setup time + processing time * quantity + post-setup time = 900 + 180 * 200 + 900 = 37,800 [seconds] = 10.50 [hours]
Therefore, the labor cost 41 for item B on June 6th is 10.50 hours.
Since the load man-hours 402 are the sum of the man-hours 41 of each item for each schedule, the load man-hours 402 for 6/6 is 10.50 [hours].

The schedule planning screen 40 for the child item in Figure 11 is displayed in the same way as the schedule planning screen 40 for the parent item.

<<Display of the Mountain Collapse Target List 50: Step S103>>
In step S103, the plan screen display unit 110 displays the schedule planning screen 40, extracts schedules in which the load man-hours 41 exceed the available man-hours, and displays a list of the extracted schedules as a collapse target list 50.
The planning screen display unit 110 acquires the reserved man-hours 333 of each in-house department from the supplier master 33. In the example of Fig. 6, the reserved man-hours of in-house department line 1 is 8.00 hours. Also, the reserved man-hours of in-house department line 2 is 8.00 hours.

The planning screen display unit 110 extracts schedules that exceed the available man-hours of the corresponding in-house departments from among the load man-hours 41 displayed on the schedule planning screen 40. For example, on the parent item schedule planning screen 40 in Fig. 10, 6/3 is 10.50 hours, 6/6 is 10.50 hours, 6/8 is 13.00 hours, and 6/10 is 19.00 hours, which exceed the available man-hours.
In the planning screen display unit 110, the load man-hours 402 of the schedule that exceed the available man-hours are highlighted. For example, they are highlighted in red, bold, with an arrow, underlined, or a combination of these. In FIG. 10, they are highlighted in bold.

FIG. 12 is a diagram showing an example of the configuration of the collapse target list 50 according to the present embodiment.
The collapse target list 50 is a list of schedules in which the load man-hours 402 exceed the available man-hours.
The planning screen display unit 110 displays the collapse target list 50 for each of the parent item and the child item. In Fig. 12, the left diagram shows the collapse target list 50 for the parent item, and the right diagram shows the collapse target list 50 for the child item.
The schedule, item, quantity, and man-hours are extracted in the collapse target list 50. In addition, the collapse target list 50 may display at least one of the load man-hours and the available man-hours for each schedule.

<Change acceptance process: Step S104>
In step S104, the change receiving unit 120 receives a change to the production plan 401 on the parent item schedule planning screen 40. The change receiving unit 120 receives a change to the production plan 401 on the parent item schedule planning screen 40 for a schedule in which the load man-hours 402 exceed a predetermined reserved man-hours, for example.
Specifically, the change receiving unit 120 receives a change to the current plan 43 for a schedule in which the load man-hours 402 exceed a predetermined available man-hours on the parent item schedule planning screen 40. Then, the change receiving unit 120 changes the load man-hours 402 for the schedule based on the received change to the current plan 43.

The schedule planner 60 can change only the field for the current plan 43 on the schedule planning screen 40 of the parent item. The schedule planner 60 refers to the collapse target list 50 displayed together with the schedule planning screen 40, and changes the current plan 43 for the schedule displayed in the collapse target list 50. When the change receiving unit 120 receives the change to the current plan 43, it automatically recalculates the load man-hours 402 based on the change to the current plan 43. Furthermore, the change receiving unit 120 also automatically changes the incoming, outgoing, and inventory based on the change to the current plan 43.
In this manner, the change receiving unit 120 receives changes to the production plan 401 input based on the collapse target list 50 on the parent item schedule planning screen 40 .

FIG. 13 is a diagram showing an example of a change to the parent item schedule planning screen 40 according to this embodiment.
The circles in FIG. 13 indicate manual changes to the current plan 43 on the parent item schedule planning screen 40.
The change receiving unit 120 accepts, as a change to the production plan 401 on the schedule planning screen 40 of the parent item, a change to allocate at least a part of the current plan 43 for a schedule in which the load man-hours 402 exceed the available man-hours to another schedule so that the load man-hours 402 do not exceed the available man-hours.

12 and 13, the schedule planner 60 changes the current plan 43 for item B on 6/6 displayed on the collapse target list 50. Here, the current plan "200" for item B on 6/6 is divided into "100" and "100", and the "100" is allocated to the current plan 43 for 6/5.
As a result, the man-hours 41 for item B on 6/5 will be 5.25, and the load man-hours 402 for the entire period on 6/5 will be 5.25. Also, the man-hours 41 for item B on 6/6 will be 5.25, and the load man-hours 402 for the entire period on 6/6 will be 5.25. Also, based on these calculation results, the receipt 44 and inventory 46 for item B on 6/5 will be "100". Also, the receipt 44 for item B on 6/6 will be "100", and the inventory 46 will be "200".

In this case, the method for calculating the man-hours 41 for item B is as follows.
When a task is divided over multiple dates, the man-hours 41 are calculated taking into account pre-setup time and post-setup time.
The pre-setup time is the preparation time for manufacturing (powering on the equipment, setting parameters, etc.).
Post-setup time is the post-processing time after manufacturing is completed (cleaning of equipment, etc.).
In addition, since the period from 6/5 to 6/6 is continuous work, only the pre-setup time is added to 6/5, and only the post-setup time is added to 6/6, as shown below.
6/5: Man-hours for item B = pre-setup time + processing time * quantity 6/6: Man-hours for item B = processing time * quantity + post-setup time The specific calculation is as follows.
6/5: Man-hours for item B = 900 [seconds] + 180 [seconds] * 100 = 5.25 [hours]
6/6: Man-hours for item B = 180 [seconds] * 100 + 900 [seconds] = 5.25 [hours]

<Interlocking change process: step S105>
In step S105, the interlocking change unit 130 automatically changes the production plan 401 and the load man-hours 402 on the schedule planning screen 40 of the child item in conjunction with the change to the production plan 401 on the schedule planning screen 40 of the parent item.

FIG. 14 is a diagram showing an example of a change in the child item schedule planning screen 40 according to the present embodiment.
14 indicates an automatic change on the child item's schedule planning screen 40 in conjunction with a change to the production plan 401 on the parent item's schedule planning screen 40. The circle surrounds the current plan 43 on the child item's schedule planning screen 40, and the workload 402 is also automatically changed in response to the change to the current plan 43. Furthermore, the incoming, outgoing, and inventory are also automatically changed.

The interlocking change unit 130, in conjunction with the production plan 401 changed on the schedule planning screen 40 of the parent item, automatically changes at least a part of the production plan 401 on the schedule planning screen 40 of the child item to be allocated to a different schedule so that the load man-hours 402 do not exceed the available man-hours 433 and so that the child item is on time for the production of the parent item.
Specifically, the interlocking change unit 130 automatically changes, in conjunction with the current plan 43 changed on the schedule planning screen 40 of the parent item, to allocate at least a part of the current plan 43 on the schedule planning screen 40 of the child item to a different schedule so that the load man-hours 402 do not exceed the possessed man-hours 433 and so that the child item is on time for the production of the parent item. Furthermore, in response to the change to allocate at least a part of the current plan 43 to a different schedule, the interlocking change unit 130 recalculates the load man-hours 402 for each of the source schedule and the destination schedule, and automatically changes the incoming, outgoing, and inventory.

When changing the production plan for a child item in response to a change in the parent item, the following (a) to (f) will be applied.
If a product is a parent item, then parts are its child items. If a part is a parent item, then materials are its child items.
(a) Products are brought forward by X days → Parts are also brought forward by X days → Materials are also brought forward by X days (b) Parts are brought forward by Y days → Materials are also brought forward by Y days (products remain unchanged)
(c) Materials are brought forward by Z days → No changes to parts and products. (d) Products are delayed by X days → Parts are also delayed by X days → Materials are also delayed by X days. (e) Parts are delayed by Y days → Materials are also delayed by Y days. (f) Materials are delayed by Z days → No changes to parts and products.

10 to 14, the schedule planner 60 changes the current plan 43 for item B on 6/6 displayed on the collapse target list 50. Here, the current plan "200" for item B on 6/6 is split into "100" and "100", and the "100" is allocated to the current plan 43 on 6/5, bringing it forward.
In conjunction with this change by the schedule planner 60, the child item schedule planning screen 40 changes the current plan 43 for the press product B on 6/5. Here, the current plan "200" for the press product B on 6/5 is divided into "100" and "100", and the "100" is allocated to the current plan 43 for 6/4 in order to bring forward the schedule.

In this case, the method for calculating the man-hours 41 for the pressed product B is as follows.
Since the work from 6/4 to 6/5 is continuous, only the pre-setup time is added to 6/4, and only the post-setup time is added to 6/5, as shown below.
6/4: Man-hours for item B = pre-setup time + processing time * quantity 6/5: Man-hours for item B = processing time * quantity + post-setup time The specific calculations are as follows.
6/4: Man-hours for item B = 1800 [seconds] + 90 [seconds] * 100 = 3.00 [hours]
6/5: Man-hours for item B = 90 [seconds] * 100 + 1800 [seconds] = 3.00 [hours]

In step S106, all changes to steps S104 and S105 are registered on the schedule planning screen 40. For example, the planning screen display unit 110 registers all changes to steps S104 and S105 on the schedule planning screen 40.

<Warning Display Processing: Steps S107 to S111>
In the warning display process, when there is a schedule in which the load man-hours 402 exceed the available man-hours on the schedule planning screen 40 of each of the changed parent item and child items, the warning display unit 140 displays a warning message 51 on the display device 941. The warning message 51 is for warning that there is a schedule in which the load man-hours 402 exceed the available man-hours.
In addition, the warning display unit 140 displays a warning message 51 to warn that there is a schedule where the load man-hours 402 exceed the available man-hours, and accepts a request as to whether or not additional changes are required for the schedule where the load man-hours 402 exceed the available man-hours.
When it is input via the warning message 51 that an additional change is necessary, the change receiving unit 120 transitions the schedule planning screen 40 for each of the post-change parent item and child items to a state in which the additional change is awaited.
Specifically, the following applies:

In step S107, the warning display unit 140 acquires the available man-hours 333 corresponding to the schedule planning screen 40 of each of the parent item and child item from the supplier master 33. For each schedule, the warning display unit 140 compares the load man-hours 402 on the schedule planning screen 40 of each of the parent item and child item with the available man-hours corresponding to the schedule planning screen 40 of each of the parent item and child item.

According to the customer master 33, the available man-hours for the internal department "Line 1" are 8 hours. In the example of FIG. 13, the warning display unit 140 compares the load man-hours 402 for each schedule on the parent item schedule planning screen 40 with the available man-hours of "8 hours." On the parent item schedule planning screen 40, 6/3 is 10.50 hours, 6/8 is 13.00 hours, and 6/10 is 19.00 hours, which exceed the available man-hours of "8 hours."

If there is no schedule in which the load man-hours 402 exceeds the available man-hours (NO in step S107), the process proceeds to step S112.
If there is a schedule in which the load man-hours 402 exceeds the available man-hours (YES in step S107), the process proceeds to step S108.

In step S108, the warning display unit 140 displays a warning message 51 to warn that there is a schedule in which the load man-hours 402 exceed the available man-hours.

FIG. 15 is a diagram showing an example of a display of a warning message 51 according to the present embodiment.
For example, the warning display unit 140 displays a warning message 51 stating, "For the following schedule, the load man-hours exceed the available man-hours. Do you want to continue?" and displays a list of the corresponding schedules. The warning display unit 140 also displays a "Yes" button and a "No" button for the schedule planner 60 to input a response to "Do you want to continue?".
13 and 15, 6/3, 6/8, and 6/10 are displayed in the warning message 51 as a list of the relevant dates. The load man-hours may be displayed as 6/3: 10.50 hours, 6/8: 13.00 hours, and 6/10: 19.00 hours. Alternatively, the man-hours may be calculated and displayed as the difference between the load man-hours and the available man-hours, as 6/3: +2.50 hours, 6/8: +5.00 hours, and 6/10: +11.00 hours.

In FIG. 15, the schedules where the load man-hours for the in-house department "Line 1," which is the production line for the parent item, exceed the available man-hours are displayed in warning message 51. However, the schedules where the load man-hours for the in-house department "Line 2," which is the production line for the child item, exceed the available man-hours may also be displayed in warning message 51. In this case, it is easier to understand if the schedules are displayed by in-house department, for example, "Line 1: 6/3, 6/8, and 6/10," and "Line 2: 6/9."

In step S109, the warning display unit 140 receives, via the warning message 51, a request as to whether or not additional changes are required for the schedule in which the load man-hours 402 exceed the available man-hours.
Specifically, the answer to the question "Are you sure you want to continue?" is accepted by clicking a "Yes" button or a "No" button. Note that Fig. 15 is only an example, and other methods such as using voice input and output may be used as the method of displaying the warning message 51 and the method of accepting the need for additional changes.

If the answer is "yes," that is, if no additional changes are required (YES in step S109), the process proceeds to step S110. In other words, this means that the schedule planner 60 has completed the production plan with the content displayed on the schedule planning screen 40.
In step S110, the warning display unit 140 closes the warning message 51, and the process proceeds to step S112.

If "not to continue", that is, if additional changes are required (NO in step S109), the process proceeds to step S111.
In step S111, the warning display unit 140 closes the warning message 51, and the process returns to step S104. That is, the change receiving unit 120 waits for additional changes on the schedule planning screens 40 for the parent item and child items after the change, and repeats the process from step S104.

In step S112, the planning screen display unit 110 reflects the contents of the schedule planning screen 40 completed by the schedule planner 60 in the order table 32.

***Other configurations***
<Modification 1>
In the first embodiment, as shown in the specific examples of FIG. 10 to FIG. 14, an example has been shown in which a current plan for a schedule in which the load man-hours exceed the available man-hours is equally divided.
In the first modification, a different example of dividing a current plan for a schedule in which the load man-hours exceed the available man-hours will be described from the concrete examples of Fig. 10 and Fig. 11. In particular, an example will be described in which the interlocking change unit 130 distributes at least a part of the current plan on the schedule planning screen 40 for child items so that the load man-hours of the schedule to which the current plan is distributed become the available man-hours.

FIG. 16 is a diagram showing another example of changes to the parent item schedule planning screen 40 according to the first modification of the present embodiment.
The circles in FIG. 16 indicate manual changes to the current plan on the parent item schedule planning screen 40.
In the specific example of Fig. 16, with Fig. 10 being the schedule planning screen 40 before the change, the schedule planner 60 manually changes the current plan for item B on 6/6 displayed in the collapse target list 50. Here, the current plan "200" for item B on 6/6 is divided into "45" and "155", and "155" is allocated to the current plan for 6/5.
As a result, the man-hours for item B on 6/5 will be 8.00 hours, and the load man-hours for 6/5 will be 8.00 hours. Also, the man-hours for item B on 6/6 will be 2.50 hours, and the load man-hours for 6/6 will be 2.50 hours.
In this way, by planning a schedule so that the workload of future schedules is close to the available manpower, the human resources indicated by the available manpower can be used efficiently. Also, if the schedule needs to be changed due to other factors, by adjusting the future schedule, the available manpower of future schedules can be used efficiently.

Next, the interlocking change unit 130 automatically changes the production plan including the load man-hours and the current plan on the child item's schedule planning screen 40 in conjunction with the changes to the current plan on the parent item's schedule planning screen 40.

FIG. 17 is a diagram showing another example of changes to the child-item schedule planning screen 40 according to the first modification of the present embodiment.
The circles in Fig. 17 indicate automatic changes on the child item's schedule planning screen 40 in conjunction with changes to the current plan on the parent item's schedule planning screen 40. The circles enclose the current plan on the child item's schedule planning screen 40, and the workload man-hours are also automatically changed in response to the changes to the current plan. Furthermore, incoming and outgoing orders and inventory are also automatically changed.

17, in conjunction with a manual change made to the parent item's schedule planning screen 40 by the schedule planner 60, the load man-hours and the production plan including the current plan are automatically changed on the child item's schedule planning screen 40. Here, the current plan "200" for press item B on 6/5 is divided into "45" and "155", and "155" is allocated to the current plan on 6/4.
As a result, the man-hours for the 6/4 press product B are 4.38 hours, and the load man-hours for the 6/4 are 4.38 hours. The man-hours for the 6/5 press product B are 1.63 hours, and the load man-hours for the 6/5 are 1.63 hours.

<Modification 2>
In the first embodiment, a case where a parent item and a child item have a one-to-one relationship has been described, as shown in the schematic diagram of Fig. 7. In the second modification, a case where multiple child items correspond to one parent item, or one child item corresponds to multiple parent items, will be described.

FIG. 18 is a schematic diagram showing an example of the configuration of a schedule planning screen 40 according to the second modification of the present embodiment and the relationship between parent items and child items.
In the schematic diagram of Fig. 18, item D is produced from press item D, and item E is produced from press items D, E, and F. In other words, there are multiple child items with item E as the parent item. In addition, the child item, press item D, is used in the production of multiple parent items, namely item D and item E.

FIG. 19 is a diagram showing an example of the configuration of a parent item schedule planning screen 40 according to the second modification of the present embodiment.
FIG. 20 is a diagram showing an example of the configuration of a schedule planning screen 40 for child items according to the second modification of the present embodiment.
FIG. 21 is a diagram showing an example of the configuration of the collapse target list 50 according to the second modification of the present embodiment.
FIG. 22 is a diagram showing an example of a change to the parent item schedule planning screen 40 according to the second modification of this embodiment.
FIG. 23 is a diagram showing an example of a change to the child-item schedule planning screen 40 according to the second modification of the present embodiment.

19 to 23 show a schedule planning screen 40 and a collapse target list 50 for item D, item E, press product D, press product E, and press product F, which have the parent item and child item relationship in the schematic diagram of FIG. 18.
21, 7/3 and 7/7 are listed in the parent item collapse target list 50. Also, 7/6 and 7/9 are listed in the child item collapse target list 50.

In the planning support device 100 of the second variation of this embodiment, in the specific examples of Figures 19 to 23, the schedule planning screens 40 for the parent item and the child item are changed as follows: (1) The schedule planner 60 manually changes the current plan for item D on 7/3, which is listed in the parent item's collapse target list 50. In the manual change, the current plan "200" for item D is divided, allocating "155" to 7/2 and "45" to 7/3.
(2) The schedule planner 60 also manually modifies the current schedule for item E on 7/7, which is listed in the parent item collapse target list 50. In the manual modification, the entire current schedule "80" for item E is allocated to 7/6. In other words, all work for item E on 7/7 is brought forward by one day.
(3) On the child item schedule planning screen 40, in accordance with the change to the parent item D, an automatic change is made to divide the current plan "200" for pressed item D, allocating "155" to 7/1 and "45" to 7/2.
(4) Furthermore, on the child item schedule planning screen 40, in accordance with the manual change to bring forward the 7/7 work for the parent item, item E, by one day, an automatic change is also implemented to bring forward the work for each of the child items of item E, press product D, press product E, and press product F, by one day. Specifically, in accordance with the manual change to bring forward all work for item E on 7/7 (work for 80 pieces of item E) by one day, an automatic change is implemented to bring forward each of the 80 pieces of press product D, press product E, and press product F, which are child items of item E, by one day on 7/6.
(5) The schedule planner 60 advances only the press product F by one day for 7/9 listed in the child item collapse target list 50.

In this way, even when multiple child items correspond to one parent item, or when one child item corresponds to multiple parent items, it is possible to automatically change the child item's schedule planning screen 40 in conjunction with manual changes on the parent item's schedule planning screen 40.

<Modification 3>
In this embodiment, the functions of the plan screen display unit 110, the change receiving unit 120, the interlocking change unit 130, and the warning display unit 140 are realized by software. As a modified example, the functions of the plan screen display unit 110, the change receiving unit 120, the interlocking change unit 130, and the warning display unit 140 may be realized by hardware.
Specifically, the planning support device 100 includes an electronic circuit 909 instead of the processor 910 .

FIG. 24 is a diagram showing an example of a configuration of a planning support device 100 according to a third modification of the present embodiment.
The electronic circuit 909 is a dedicated electronic circuit that realizes the functions of the plan screen display unit 110, the change acceptance unit 120, the interlocking change unit 130, and the warning display unit 140. Specifically, the electronic circuit 909 is a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, a logic IC, a GA, an ASIC, or an FPGA. GA is an abbreviation for Gate Array. ASIC is an abbreviation for Application Specific Integrated Circuit. FPGA is an abbreviation for Field-Programmable Gate Array.

The functions of the planning screen display unit 110, the change reception unit 120, the linkage change unit 130, and the warning display unit 140 may be realized by a single electronic circuit, or may be distributed across multiple electronic circuits.

As another variation, some of the functions of the plan screen display unit 110, the change acceptance unit 120, the interlocking change unit 130, and the warning display unit 140 may be realized by electronic circuits, and the remaining functions may be realized by software. Also, some or all of the functions of the plan screen display unit 110, the change acceptance unit 120, the interlocking change unit 130, and the warning display unit 140 may be realized by firmware.

Each of the processor and electronic circuitry is also called a processing circuitry. In other words, the functions of the planning screen display unit 110, the change acceptance unit 120, the interlocking change unit 130, and the warning display unit 140 are realized by the processing circuitry.

***Description of Effects of This Embodiment***
As described above, in the planning support device 100 according to the present embodiment, when a production plan of a parent item is manually changed on a schedule planning screen including daily production plans and workloads of items, the production plans and workloads of child items are automatically changed in conjunction with the manual change of the parent item. Therefore, the planning support device according to the present embodiment has the effect of eliminating the need to manually change the production plans of child items and greatly reducing the workload of the schedule planner.

In addition, the planning support device 100 according to this embodiment displays a warning message when the load man-hours for a day exceed the available man-hours. Therefore, the planning support device according to this embodiment has the effect of being able to reliably present to the schedule planner a schedule in which the load man-hours exceed the available man-hours.

In addition, in the planning support device 100 according to this embodiment, the warning message is configured to prompt the schedule planner to input whether or not additional changes are required. Therefore, the planning support device according to this embodiment has the effect of not only automatically calculating, but also allowing the schedule planner to flexibly determine the schedule according to the work environment.

In this way, the planning support device 100 according to this embodiment can efficiently respond to plan fluctuations using manual work and computer-processed control.

In the above first embodiment, each unit of the planning support device has been described as an independent functional block. However, the configuration of the planning support device does not have to be the same as that of the above-described embodiment. The functional blocks of the planning support device may have any configuration as long as they can realize the functions described in the above-described embodiment. In addition, the planning support device may not be a single device, but may be a system composed of multiple devices.
In addition, a plurality of parts of the first embodiment may be combined to be implemented. Alternatively, one part of this embodiment may be implemented. In addition, this embodiment may be combined in any manner as a whole or in part to be implemented.
That is, in the first embodiment, the embodiments can be freely combined, or any of the components in each embodiment can be modified, or any of the components in each embodiment can be omitted.

The above-described embodiment is essentially a preferred example, and is not intended to limit the scope of the present disclosure, the scope of application of the present disclosure, or the scope of use of the present disclosure. The above-described embodiment can be modified in various ways as necessary. For example, the procedures described using flow charts or sequence diagrams may be modified as appropriate.

Various aspects of the present disclosure are summarized below as appendices.
(Appendix 1)
1. A planning support device that supports the creation of a production plan for a parent item and a child item required for the production of the parent item, comprising:
a planning screen display unit that displays, for each of the parent items and the child items, information including a production plan for each schedule and workload required to realize the production plan as a schedule planning screen;
a change acceptance unit that accepts changes to the production plan on the schedule planning screen of the parent item and changes the workload based on the changes to the production plan;
a linkage change unit that changes the production plan and the load man-hours on the schedule planning screen of the child item in linkage with a change to the production plan on the schedule planning screen of the parent item.
(Appendix 2)
The planning screen display unit includes:
The planning support device according to claim 1 displays the schedule planning screen, extracts schedules in which the load man-hours exceed a predetermined available man-hours, and displays a list of the extracted schedules as a list of targets for collapsing.
(Appendix 3)
The change acceptance unit is
3. A planning support device according to claim 2, further comprising: a schedule planning screen for the parent item that accepts changes to the production plan that are input based on the collapse target list.
(Appendix 4)
The planning screen display unit includes:
4. The planning support device according to claim 1, further comprising: a production schedule calculation unit that calculates workload for achieving the production plan based on an item configuration master that sets pre-setup time, processing time, and post-setup time when producing the parent item from the child item.
(Appendix 5)
The change acceptance unit is
accept, as a change to the production plan on the schedule planning screen of the parent item, a change to allocate at least a part of the production plan in a schedule in which the load man-hours exceed the available man-hours to another schedule so that the load man-hours do not exceed the available man-hours;
The interlocking change unit is
5. The planning support device according to claim 1, wherein, in conjunction with a production plan allocated on the schedule planning screen of the parent item so that the load man-hours do not exceed the available man-hours, a change is automatically made to allocate at least a part of the production plan on the schedule planning screen of the child item to a different schedule so that the load man-hours do not exceed the available man-hours and so that the child item is on time for the production of the parent item.
(Appendix 6)
The interlocking change unit is
6. The planning support device according to claim 5, further comprising: a schedule planning screen for the child item, which allocates at least a portion of the production plan so that the load man-hours of the schedule to which the production plan is allocated become the available man-hours.
(Appendix 7)
The planning support device includes:
7. The planning support device according to claim 1, further comprising a warning display unit that displays a warning message to warn that there is a schedule on the schedule planning screen for each of the parent item and the child item after the change, when the load man-hours exceed the available man-hours for a schedule.
(Appendix 8)
The warning display unit is
The warning message warns that there is a schedule in which the load man-hours exceed the available man-hours, and receives a request as to whether or not additional changes are required for the schedule in which the load man-hours exceed the available man-hours;
The change acceptance unit is
8. The planning support device according to claim 7, wherein, when it is acknowledged via the warning message that the additional change is necessary, the additional change is made to the parent item and the child item on the schedule planning screen after the change.
(Appendix 9)
1. A planning support method for use in a planning support device that supports the creation of a production plan for a parent item and a child item required for the production of the parent item, comprising:
The computer displays, as a schedule planning screen, information including a production plan, which is a production plan for each schedule, and workload for achieving the production plan, for each of the parent item and the child item;
a computer accepts a change to the production plan on the schedule planning screen of the parent item, and changes the load man-hours based on the change to the production plan;
A planning support method, in which a computer changes the production plan and the load man-hours on a schedule planning screen for the child item in conjunction with a change to the production plan on the schedule planning screen for the parent item.
(Appendix 10)
A planning support program for use in a planning support device that supports the creation of a production plan for a parent item and a child item required for the production of the parent item, comprising:
a planning screen display process for displaying information including a production plan, which is a production plan for each schedule, and workload for realizing the production plan, for each of the parent item and the child item, as a schedule planning screen;
a change acceptance process for accepting a change to the production plan on the schedule planning screen of the parent item and changing the workload based on the change to the production plan;
a schedule planning screen for the child item and a schedule change screen for the child item, the schedule change screen being linked to a change to the production plan of the parent item;

31 Order table, 32 Order table, 33 Customer master, 34 Item configuration master, 35 Inventory receipt and payment table, 40 Schedule planning screen, 50 Collapse target list, 51 Warning message, 60 Schedule planner, 41 Man-hours, 42 Planning result, 43 Current plan, 44 Stock entry, 45 Stock removal, 46 Inventory, 401 Production plan, 402 Load man-hours, 403 Schedule, 100 Planning support device, 110 Planning screen display section, 120 Change acceptance section, 130 Linked change section, 140 Warning display section, 150 Memory section, 311 Manufacturing number, 312, 322, 352 Item, 313 Customer, 314, 324 Delivery date, 315, 325, 355 Quantity, 321 Order sequence number, 323, 346 Supplier, 331 Customer, 332 Customer category, 333 Available man-hours, 341 Parent item, 342 Child item, 343 Pre-setup time, 344 Processing time, 345 Post-setup time, 351 Inventory sequence number, 353 Receipt/payment category, 354 Receipt/payment date, 909 Electronic circuit, 910 Processor, 921 Memory, 922 Auxiliary storage device, 930 Input interface, 940 Output interface, 941 Display device, 950 Communication device.

Claims (10)

1. A planning support device that supports the creation of a production plan for a parent item and a child item required for the production of the parent item, comprising:
a planning screen display unit that displays, for each of the parent items and the child items, information including a production plan for each schedule and workload required to realize the production plan as a schedule planning screen;
a change acceptance unit that accepts changes to the production plan on the schedule planning screen of the parent item and changes the workload based on the changes to the production plan;
a linkage change unit that changes the production plan and the load man-hours on the schedule planning screen of the child item in linkage with a change to the production plan on the schedule planning screen of the parent item. The planning screen display unit includes:
2. The planning support device according to claim 1, wherein the schedule planning screen is displayed, and schedules in which the load man-hours exceed a predetermined available man-hours are extracted, and a list of the extracted schedules is displayed as a list of targets for collapse. The change acceptance unit is
3. The planning support device according to claim 2, wherein changes to the production plan input based on the collapse target list are accepted on the schedule planning screen for the parent item. The planning screen display unit includes:
4. The planning support device according to claim 1, wherein load man-hours for realizing the production plan are calculated based on an item configuration master in which pre-setup time, processing time, and post-setup time for producing the parent item from the child item are set. The change acceptance unit is
accept, as a change to the production plan on the schedule planning screen of the parent item, a change to allocate at least a part of the production plan in a schedule in which the load man-hours exceed the available man-hours to another schedule so that the load man-hours do not exceed the available man-hours;
The interlocking change unit is
4. The planning support device according to claim 1, wherein, in conjunction with a production plan allocated so that the load man-hours do not exceed the available man-hours on the schedule planning screen of the parent item, a change is automatically made to allocate at least a part of the production plan on the schedule planning screen of the child item to a different schedule so that the load man-hours do not exceed the available man-hours and so that the child item is in time for the production of the parent item. The interlocking change unit is
6. The planning support device according to claim 5, wherein at least a part of the production plan is allocated so that the load man-hours of the schedule to which the production plan is allocated become the available man-hours on the schedule planning screen for the child item. The planning support device includes:
4. The planning support device according to claim 1, further comprising a warning display unit that, when there is a schedule on the schedule planning screen for each of the parent item and the child item after the change, displays a warning message warning that there is a schedule on which the load man-hours exceed the available man-hours. The warning display unit is
The warning message warns that there is a schedule in which the load man-hours exceed the available man-hours, and receives a request as to whether or not additional changes are required for the schedule in which the load man-hours exceed the available man-hours;
The change acceptance unit is
8. The planning support device according to claim 7, wherein when it is acknowledged via the warning message that the additional change is necessary, the additional change is put on hold on the schedule planning screen for each of the parent item and the child item after the change. 1. A planning support method for use in a planning support device that supports the creation of a production plan for a parent item and a child item required for the production of the parent item, comprising:
The computer displays, as a schedule planning screen, information including a production plan, which is a production plan for each schedule, and workload for achieving the production plan, for each of the parent item and the child item;
a computer accepts a change to the production plan on the schedule planning screen of the parent item, and changes the load man-hours based on the change to the production plan;
A planning support method, in which a computer changes the production plan and the load man-hours on a schedule planning screen for the child item in conjunction with a change to the production plan on the schedule planning screen for the parent item. A planning support program for use in a planning support device that supports the creation of a production plan for a parent item and a child item required for the production of the parent item, comprising:
a planning screen display process for displaying information including a production plan, which is a production plan for each schedule, and workload for realizing the production plan, for each of the parent item and the child item, as a schedule planning screen;
a change acceptance process for accepting a change to the production plan on the schedule planning screen of the parent item and changing the workload based on the change to the production plan;
a schedule planning screen for the child item and a schedule change screen for the child item, the schedule change screen being linked to a change to the production plan of the parent item;

Images