JP2009075919A - Efficient management support system for supply chain - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an efficient management support system of a supply chain for minimizing the total costs of the inventory costs of materials, articles in process and products and the physical circulation costs of material delivery without generating the shipping delay of the products even when the sales plan fluctuation for production increase is generated in the production of products. <P>SOLUTION: For the simulation of sales plan fluctuation in a supply chain using a supply chain model, simulation specifications are set on a specification setting picture. In the set simulation specifications, a fluctuation sales plan, a fluctuation production plan, product information, production information and physical circulation route information are corrected, and simulation data are created base on them. Then, simulation is performed based on the simulation data, and the selection of the number of inventories and the physical circulation route of material delivery for preventing the shipping delay of products in the case of sales plan fluctuation, and for minimizing the total costs of the inventory costs of stocks and the physical circulation costs of material delivery is achieved. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  In the supply chain including the production process from material procurement to sales, the present invention provides inventory costs and material procurement logistics of materials and products that do not hinder the sales plan even if the sales plan fluctuates. Concerning cost optimization.

  By the time a product arrives at a customer, there are multiple business areas from procurement of materials (hereinafter also referred to as parts) to delivery to the customer, such as material procurement, production, and sales. A series of business activities are performed through coordination of business activities. The efficiency of such a chain of business activities, the so-called supply chain, has been studied as an important issue.

  When improving the efficiency of a supply chain with multiple business areas, production information such as production volume and delivery date, information on procurement, production, logistics, sales, etc. It is necessary to consider. Such a thing is generally called supply chain management (SCM).

  For this reason, in order to improve the efficiency of the supply chain, a method of creating a supply chain model and simulating with a simulator to improve the efficiency of the supply chain has been developed.

  In addition, in the supply chain, if there is a weak part in the chain, such as the flow of information or information, such as an unclear stock quantity, the supply chain may be broken. Therefore, in order to optimize the flow of materials and information on business activities such as procurement, production and sales of materials from the procurement of materials to delivery to customers, the flow of materials is captured in real time for all operations in the supply chain. Need to be. Therefore, introduction of an information system package called an ERP (Enterprise Resource Planning) package has been promoted for the core business of a company.

  The ERP package is an integrated business package, which is package software for an enterprise information system that integrates the entire enterprise activities such as sales, production, logistics, and finance. By integrating systems that were built separately for each department so that they can be referenced and used mutually, centralized management of data such as financial accounting and personnel, system upgrades and easy maintenance checks, Real-time reference of work in other departments is also possible.

  In the supply chain, a sales / production plan is made according to demand (order), materials are procured from outside or other factories (hereinafter referred to as suppliers), and production activities are performed in the production process. When the material is procured, in addition to the material order confirmation information, in general, the procurement side (ordering side) notifies the supplier of the prospective material ordering information (forecast information) in order to facilitate the procurement. The forecast information is changed to material order confirmation information on a predetermined date. As a result, the supplier can make a future production plan, and it is possible to suppress the occurrence of excess inventory and shortage.

  However, the demand does not always remain constant, and the sales plan may vary. This causes production fluctuations when changing from forecast information to material order confirmation information. For this reason, especially in response to an increase in the sales plan, it prevents production delays due to material shortages and shipment delays due to insufficient product inventory, while preventing unnecessary inventory of materials and products and minimizing inventory costs. It is hoped that.

  On the other hand, the error of the past forecast information, the average value of the error, and the standard deviation of the error are calculated from the past forecast information and the order received corresponding thereto, and the current forecast information is corrected. The calculation of the order quantity is disclosed. (For example, refer to Patent Document 1).

  Also, the additional order quantity is calculated by the additional order quantity calculation means that determines the additional order quantity of the resource for the period based on the resource quantity of the resource at the time of use in the additional production. However, it is disclosed to place an order for a member (for example, see Patent Document 2).

In addition, for the production request, the management target period is set and the upper limit value in case of sudden increase in production is established by limiting the cumulative value management. (For example, refer to Patent Document 3).
JP 2006-39802 A JP 2006-155361 A JP 2006-113748 A

  Patent Document 1 corrects the current forecast information and calculates the order quantity, so that the order receiving side can make a highly accurate order prediction, thereby preventing the occurrence of shortage and excessive inventory. It is intended to effectively suppress. However, in the case of a sudden change in order, it is impossible to predict whether or not a shortage will occur, and a shortage may occur.

  Patent Document 2 intends to calculate the additional order quantity by the additional order quantity calculation means, secure the parts while reducing unnecessary inventory as much as possible by placing the parts order, and to cope with fluctuations in the demand of the product. . However, it is only the calculation of the additional order quantity, that is, the additional manufacturable quantity, and when there is a sudden change in the order exceeding the additional manufacturable quantity, a shortage may occur.

  Japanese Patent Laid-Open No. 2004-228688 uses the cumulative number of scheduled productions and the cumulative number of parts arranged to determine the upper limit for sudden increase in production, and to manage parts advance arrangement (forecast information) and production number determination. However, when the production increase exceeds the upper limit, there is a risk that the material may be out of stock.

  In the procurement of materials to cope with production plan fluctuations that suddenly increase production, depending on the materials, there is a problem with the logistics lead time such as logistics time and number of days when procuring materials on the prescribed logistics route normally used for material procurement. May occur. There are various logistics routes such as sea mail, automobile mail, air mail, etc. Generally, the logistics route has a long logistics lead time, for example, shipping costs are low for logistics costs, and the logistics lead time is short, for example, for air mail, etc. Get higher. For this reason, usually, as a distribution route, a distribution lead time is long but a distribution cost is low, for example, shipping service is used. For this reason, when production fluctuations due to increased production occur, materials delivered via a distribution route with a long regular distribution lead time will be delivered before the start of production if materials are ordered using the material order confirmation information. Otherwise, there is a risk of missing items due to delays in delivery.

  Conventionally, in such cases, use a method that increases the inventory in the production process by setting a larger number of materials in stock, or another temporary logistics route (such as air mail) that shortens the logistics lead time. It was common to avoid delays in delivery.

  In the method of increasing the stock quantity, it is possible to reduce delay in delivery of products. However, in the material procurement business area (hereinafter also referred to as a material procurement department), materials (parts) having a long delivery lead time, so-called long delivery parts, have a safety stock. In a production business area (hereinafter also referred to as a production department), for products having a long production lead time, work in progress and products are held as safety stock in the process. On the other hand, in the sales business area (hereinafter also referred to as the sales department), the product is held as a safety stock as a countermeasure when a product delivery time delay occurs due to a material shortage in the production department. Thus, each department in the supply chain has a safety stock in a form corresponding to each department, and the entire supply chain often has an excessive number of stocks. Along with this, the inventory cost increases and the state is maintained.

  Here, the delivery lead time refers to the lead time from when the material is ordered to the supplier until it is delivered to the specified location, and the logistics lead time is delivered to the specified location after the supplier dispatches the material. Refers to lead time.

  In addition, when the temporary logistics route is used, for example, when changing from a shipping service to an air mail, the logistics lead time is greatly shortened, but the logistics cost is often greatly increased. For this reason, depending on the material, even if the inventory in the production process decreases, the logistics cost increases, and the total cost of the inventory cost and the logistics cost is higher than the inventory cost in the method of increasing the number of safety stocks. Since the cost is increased, there is a case where it increases more than the inventory cost when the number of safety stocks is increased.

  The present invention has been made in view of the above situation, and does not cause a delay in shipment of products even if a sales plan fluctuates. In addition, the total cost of materials, work-in-process and product inventory costs and material procurement logistics costs is reduced. An object is to provide an efficient supply chain management support system that can be minimized.

The above object is achieved by the following configuration.
1. Material ordering information is transferred from prospective material ordering forecast information (forecast information) to material order confirmation information, and sales are made from material procurement to production, including production plans that may cause production fluctuations due to sales plan fluctuations. It is a supply chain efficient management support system that sets up a supply chain model that models a series of supply chains consisting of multiple business domains leading up to, and reproduces them on a computer for simulation to improve the efficiency of the supply chain. And
Storage means for storing data and information, model setting means for setting a supply chain model that models the supply chain on a computer, and a variable sales plan when a change occurs in the sales plan of the supply chain Sales plan creation means for generating sales plan fluctuation information and storing it in the storage means, production plan creation means for creating a variable production plan based on the variable sales plan, and storing it in the storage means as production plan fluctuation information; Specification setting means for inputting / outputting specification data for adjusting simulation specifications in the simulation, and the product information, the production information, and the ERP (Enterprise Resource Planning) package storing product information, production information, and distribution route information. The logistics route information is The variable sales plan, the variable production plan, and the specification data are imported from the means, and the product information, the production information, the distribution route information, the variable sales plan, the variable production plan, and the specification data are simulated. Based on the simulation data, the data processing means for generating data and storing the data in the storage means, based on the simulation data, performs a simulation corresponding to the sales plan fluctuation with the simulator, and does not cause a shortage when the sales plan changes Efficient management support for supply chain, characterized by inventory cost and means for calculating logistics cost that minimize the total cost of inventory in stock and logistics cost of material procurement in multiple business areas system.
2. 2. The supply chain efficient management support system according to 1, wherein the plurality of business areas are a material procurement business area, a production business area, and a sales business area.
3. 3. The supply chain efficient management support system according to 1 or 2, wherein the stock is a material, work-in-process, or product while the material is an assembly product.
4). 4. The supply chain efficient management support system according to any one of claims 1 to 3, wherein the product information includes a material used for the product, a quantity of the material, a process chart of the product, and data of the configuration. .
5). 5. The production information according to any one of 1 to 4, wherein the production information includes production plan information of product production volume and delivery date, material inventory information, ordering information, delivery date information, price information, and product inventory information. Supply chain efficient management support system.
6). The supply chain according to any one of 1 to 5, wherein the distribution route information includes distribution lead time and distribution cost for each material of a predetermined distribution route and a temporary distribution route used for material procurement. Efficient management support system.
7). In the simulation, the supply chain base information stored in the storage means, information related to the communication environment status, communication environment information, and distribution information related to the distribution status are extracted and added to perform the simulation. The supply chain efficient management support system according to any one of 1 to 5.

  As a result, when the sales plan fluctuates in the supply chain, it is possible to optimize the inventory of materials, work in progress and products that do not cause delays in the shipment of products as a whole supply chain, not individual departments. It is possible to effectively suppress shortage and excess inventory. In addition, it is possible to calculate the number of stocks and the distribution route of material procurement that minimize the total cost of the inventory cost of the entire supply chain and the logistics cost of material procurement.

  In addition, the supplier can obtain information on the results of the simulation via the ERP package, and can make future production plans. Even if production fluctuations due to sudden sales plan fluctuations occur, It is possible to suppress the occurrence of a shortage.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited thereto.

  FIG. 4 is a table showing an example of transition of forecast information (hereinafter also referred to as forecast) and material order confirmation information (hereinafter also referred to as order confirmation). FIG. 4 shows an example in which the order interval, the forecast transmission interval, and the delivery lead time are set to one week. These intervals are appropriately set depending on the types of products and materials, and are, for example, two weeks or one month. The intervals may be different. In FIG. 4, the order confirmation is denoted as PO and the forecast as FC.

  In accordance with the production plan drafted by the initial order, PO1 of the final order is placed in the planned ordering week, and the forecast FC1 is transmitted. PO1 is delivered in 2 weeks. In 2 weeks, FC2 is changed to PO2 and an order is placed, and a forecast FC2 is transmitted. PO2 is delivered in 3 weeks. The same goes for the following. FIG. 4 shows an example in which delivery is completed in nine weeks.

  In the example of FIG. 4, the ordering is performed by creating a material requirement plan by MRP (Material Requirements Planning) or the like based on the production plan every week.

  Further, order information such as reservation information (reservation) may be provided between forecast and order confirmation. In this case, as an example, Forecast is not a commitment to purchase materials, and reservation is a commitment to purchase, but the timing is not a commitment, and confirmation of ordering may be a commitment to purchase and timing.

  FIGS. 1 and 2 show the customer (product shipping destination) from the material procurement to the production process, including the production plan in which the ordering information of the material shifts from forecast to order confirmation and production fluctuation may occur due to fluctuations in the sales plan. 1 is a block diagram showing an embodiment of an efficient management support system (hereinafter also abbreviated as this system) for improving the efficiency of the supply chain of products leading to (1). Although the block diagram is divided into FIGS. 1 and 2 for the purpose of illustration, FIGS. 1 and 2 are integrated.

  As described above, the supply chain is generally composed of a plurality of business areas and is composed of a chain of the business areas. In the present embodiment, the business areas are divided into a material procurement business area (material procurement department), a production business area (production department), and a sales business area (sales department). In this embodiment, for the sake of explanation, the configuration of three departments is used as described above. However, in reality, a supply chain having a more detailed and complicated configuration is formed. The business area may be a business base. Each business area may be composed of a plurality of bases. For example, the sales department is often composed of a plurality of sales bases.

  The material procurement department procures materials from suppliers and manages the delivered materials. The production department performs management of materials in the production process, production of products, and management of products before factory shipment. The sales department distributes, manages and sells products after factory shipment. The classification is not limited to the present embodiment, and is appropriately classified according to the procurement and production form of materials, product specifications, physical distribution form, sales form, and the like. In addition, although the range of the division is divided according to the business area in the present embodiment, it may be set for each organization or each base.

  1 and 2, a database 1 is a storage means for storing various data and information, and data and information of the ERP package 2 are also taken in via the data management unit 5 as necessary. The data and information of the captured ERP package 2 are automatically captured when the ERP package 2 is updated.

  The ERP package 2 is an integrated business package, has an integrated database, and stores product information, production information, supply chain configuration, and the like. The product information is based on the materials used for the product, the quantity of the material, the process schedule and data of the product, etc., and the production information is the product production volume, production lead time, delivery date, material delivery route, delivery lead time, inventory. , Ordering, delivery date, price information, product inventory information, etc. In the present embodiment, SAP (R / 3) (registered trademark) manufactured by SAP is preferably used as the ERP package 2.

  Hereinafter, the ERP package 2 is also referred to as SAP (R / 3) (registered trademark).

  The sales plan creation unit 3 which is a sales plan creation means creates a sales plan according to the demand (order received) of a predetermined product. The sales plan creation unit 3 is provided, for example, in the sales management department in the sales department. The sales plan is transmitted to the production plan creation unit 4.

  The production plan creation unit 4 which is a production plan creation unit creates a production plan based on the sales plan in consideration of the constraints on material procurement, production process, and physical distribution. Restrictions on material procurement include parts production capacity, material delivery lead time, and material ordering contracts with suppliers. The production process constraint conditions include production lead time, process maximum production capacity, process production capacity switching condition, and the like. Restrictions on logistics include product delivery lead time, logistics capacity, warehouse inventory capacity, and the like. The production plan creation unit 4 is provided in the production management department, for example, in the production department.

  The sales plan and the production plan are input to the database 1 and the ERP package 2 via the relay program 51 and the data processing unit 54 of the data management unit 5.

  Based on the fluctuation rate of the increase in production assumed with respect to the initial sales plan, the sales plan creation unit 3 creates a variable sales plan and transmits it to the production plan creation unit 4. The production plan creation unit 4 creates a variable production plan based on the variable sales plan and the constraint conditions. The variable sales plan and the variable production plan are input to the data processing unit 54.

  A simulation specification setting unit 52, which is a specification setting unit, performs simulation specification setting. The simulation specification setting unit 52 displays a simulation specification setting screen (hereinafter also referred to as a specification setting screen) on the display device 62 via the input / output control unit 53 when the system is activated. The specification setting screen includes a simulation model setting, a production variation ratio change, inventory information change, a distribution route change, a simulation result output form, a simulation period setting, and the like. This is done by inputting.

  For example, on the specification setting screen of the simulation model, a supply chain configuration corresponding to a predetermined product is selected from a plurality of supply chain configurations stored in the ERP package, and input by the input device 61. The configuration of the selected supply chain can also be modified. The correction is performed by inputting data from the input device 61 such as a keyboard on the specification setting screen.

  On the change screen of the production fluctuation ratio, the fluctuation ratio in the fluctuation production plan in the production plan creation unit 4 is displayed as existing fluctuation ratio data, and when changing, the setting data for the fluctuation ratio is input. A plurality of changes in the variation magnification may be set. For example, three stages of variation magnifications of 3, 4, and 5 may be set, and simulations 1, 2, and 3 may be set, respectively, and multiple simulations (in this case, three times) may be performed continuously.

  On the inventory information change screen, the inventory information in the production information of the ERP package is displayed as the existing inventory data, and when changing, the variable inventory data is input. For example, there are cases where the inventory of common materials is looked at a little from production information of other products not targeted.

  On the distribution route change screen, the distribution route information of the ERP package is displayed as the existing distribution route data, and when changing, the changed distribution route data is input. For example, there is a case where it is desired to limit a temporary distribution route used when production changes.

  The simulation period is set by inputting the setting period on the displayed specification setting screen.

  On the specification setting screen for the simulation result output format, a display format for displaying a simulation result to be described later is set. In the specification setting screen, the specification of the existing display format is displayed. When the specification is changed, the specification of the changed display format is input. For example, if the existing display format is inventory costs for the entire supply chain and logistics costs for material procurement, it is divided into material inventory costs and material procurement logistics costs, work in progress inventory costs, and product inventory costs. May be displayed.

  In the above description, the predetermined product is one, but a plurality of products may be targeted. In that case, the variation magnification of each product is set. When a plurality of products cover a wide variety, it is preferable to narrow down the target products to main products by ABC analysis or the like.

  Further, the target material may be limited. For example, expensive materials, materials common among products, or dedicated materials for target products.

  As described above, since the input device 61 can be easily set and changed based on the contents of the specification setting screen sequentially displayed on the display device 62, the simulation specifications can be set quickly.

  In addition, since the simulation result can be displayed in a display format according to the purpose, the simulation result described later can be quickly examined.

  The set simulation specification data is input to the data processing unit 54 as data processing means. Thereby, the data such as the variable sales plan and the variable production plan input to the data processing unit 54 and the product information, the production information, and the distribution route information input from the ERP package 2 are changed and set. Will be modified accordingly.

  The data processing unit 54 creates simulation data based on the variable sales plan, the variable production plan, the product information, the production information, and the distribution route information. The simulation data includes, for example, data that classifies materials for each delivery lead time, data that classifies materials used for each unit that constitutes a product, production lead time that is assembled in the unit for each unit, and stocks in the unit Various data used for supply chain simulation, such as in-process pattern and inventory amount data, combination pattern of ordered parts and inventory parts and unit inventory and product production lead time and product logistics lead time in that case It is. Here, the unit refers to a work in process in which parts are assembled to a certain level.

  The various data taken in and various data created in the data processing unit 54 are input to the database 1.

  A data processing unit 54 is provided in the data management unit 5, and the data processing unit 54 is linked to the ERP package 2, the production plan creation unit 4, the sales plan creation unit 3, and the simulation specification setting unit 52, thereby using the latest information. Simulation data can be created. For example, even when the design change occurs and the data of the ERP package 2 is corrected, the data processing unit 54 can always create simulation data based on the latest data of the ERP package 2. Also, by creating simulation data in advance, it is possible to reduce the load for creating simulation data when performing a simulation, which will be described later, and to perform a quick simulation.

  The supply chain model is set on the computer by the model creation unit 7 based on data such as the supply chain configuration stored in the database 1.

  The supply chain model simulates an actual supply chain on a computer as a virtual supply chain. The actual flow of goods in the supply chain, each operation, etc. can be simulated on a computer.

  In the simulation condition setting unit 8, based on the simulation specification data, the simulation period, for example, to what period after the production fluctuation occurs due to the sales fluctuation, the initial stock setting, the production amount setting for the unit period, etc. Simulation conditions such as parameter settings are set.

  Based on the simulation data and the simulation conditions, the simulation unit 9 performs a simulation using the supply chain model set by the simulator.

  According to the simulation, when the sales plan fluctuates, it is possible to cope with the sales plan fluctuation in the entire supply chain, that is, it is possible to prevent a delay in production due to a shortage of materials and work in progress and a delay in shipment due to a shortage of product inventory, and the inventory cost of the inventory. Calculate the number of stocks and the distribution route for material procurement that minimize the total cost of the material procurement logistics cost. In other words, the inventory form, the number of inventory items, and the logistics route for material procurement that can cope with fluctuations in the sales plan across the multiple departments (business areas) that make up the supply chain minimize the total cost of inventory costs and logistics costs. Is calculated as follows.

  As a result of the above, it is possible to optimize the inventory that can cope with fluctuations in the sales plan in the supply chain, not for each department, but for the entire supply chain and the distribution route for material procurement. It is possible to minimize the total cost of logistics and logistics.

  The simulation data is always created by the data processing unit 54 based on the latest data of the ERP package 2, the production plan creation unit 4, the sales plan creation unit 3 and the simulation specification setting unit 52 as described above. For this reason, simulation close to an actual system and with high accuracy becomes possible.

  In the simulation, it is preferable to perform a simulation by taking out information from the database 1 and information / communication environment information regarding the state of the communication environment and communication environment information regarding the state of the distribution chain and distribution information regarding the state of the distribution. This makes it possible to perform a simulation that is closer to the actual system and with high accuracy.

  The result output unit 10 converts the simulation result into a set display format and displays it on the display device 62 via the database 1, the data processing unit, and the input / output control unit. The result is sent to the next result evaluation unit 11.

  The result evaluation unit 11 evaluates and examines the results of the simulation (inventory cost, logistics cost). The evaluation examination is performed by an evaluation person watching the simulation result displayed on the display device 62 and inputting the evaluation result from the input device 61. Further, when it is necessary to change the conditions for the simulation, the conditions can be set again by the simulation condition setting unit 8 and the simulation can be performed. Thereby, the range of evaluation can be expanded.

  The simulation result is fed back, stored in the database 1, and further input to the ERP package 2 via the data processing unit 54 and the relay program 51. In addition, you may input into the EP package 2 via the relay program 51 directly from the database 1 not via the data processing part 54. FIG.

  The inventory cost and physical distribution cost of the simulation result input to the ERP package 2 are set as key performance indicator (hereinafter abbreviated as KPI). KPI is used as a supply chain management index. For example, inventory costs and logistics costs in the supply chain are measured and managed using KPI as an index. As a result, it is possible to efficiently manage the supply chain without causing a delay in delivery of the product even when production changes.

  FIG. 3 shows an example of a flowchart for improving the efficiency of the supply chain using the supply chain efficient management support system shown in FIGS. It is assumed that the present system has already been activated and necessary data and information have been captured from the ERP package 2 in the database 1 and the data processing unit 54.

  In step S101, the sales plan creation unit 3 creates a variable sales plan based on the assumed production fluctuation rate.

  In step S102, the production plan creation unit 4 creates a variable production plan based on the variable sales plan created in step S101. The variable sales plan and the variable production plan are input to the data processing unit 54.

  When the already-developed variable production plan is used as the variable production plan, steps S101 and S102 are omitted.

  In step S <b> 103, the specification setting screen is displayed on the display device 62 by the simulation specification setting unit 52 based on the data of the data processing unit 54. The specification setting screen is composed of a plurality of items and is sequentially displayed. The display may be started simultaneously with step S101.

  In step S104, the simulation specification is set and changed. The person in charge of setting and changing inputs from the input device 61 while looking at the displayed specification setting screen. The simulation specification data thus set is sent to the data processing unit 54.

  In step S105, the end of the setting and changing is determined. If the setting and change have not been completed (step S105; No), the process returns to step S103, the next specification setting screen is displayed, and the next simulation specification is set and changed in step S104. In this way, when all settings and changes are completed (step S105; Yes), the process proceeds to step S106.

  In step S106, the corresponding data of the data processing unit 54 is corrected based on the simulation specification setting and changing data.

  In step S 107, simulation data is created by the data processing unit 54 and stored in the database 1.

  In step S108, the model creation unit 7 creates a supply chain model that models the supply chain on the computer based on information such as the supply chain configuration stored in the database 1. A plurality of supply chain models are created in combination patterns including order parts, stock parts, unit stocks, and product stocks based on the simulation data created in step S107.

  In step S109, based on the simulation specification data, the simulation condition setting unit 8 determines the simulation period, for example, up to which period after the production fluctuation occurs due to the sales fluctuation, etc., initial stock setting, and production amount per unit period Setting of parameters such as setting of the simulation conditions such as setting of the above is performed.

  In step S110, the simulation unit 9 performs a simulation using the supply chain model. According to the simulation, when the sales plan fluctuates, it is possible to cope with the sales plan fluctuation in the entire supply chain, that is, it is possible to prevent a delay in production due to a shortage of materials and work in progress and a delay in shipment due to a shortage of product inventory, and the inventory cost of the inventory. Calculate the number of stocks and the distribution route for material procurement that minimize the total cost of the material procurement logistics cost. In other words, the inventory form, the number of inventory items, and the logistics route for material procurement that can cope with fluctuations in the sales plan across the multiple departments (business areas) that make up the supply chain minimize the total cost of inventory costs and logistics costs. Is calculated as follows.

  In step S111, the result output unit 10 converts the result of the simulation into the set display format and sends it to the database 1, the data processing unit 54, and the input / output control unit 53.

  In step S112, the simulation result is displayed on the display device 62 in the set display format.

  In step S113, the result evaluation unit 11 evaluates and evaluates the simulation results (inventory cost, logistics cost). The evaluation examination is performed by an evaluation person watching the simulation result displayed on the display device 62 and inputting the evaluation result from the input device 61. Further, when it is necessary to change the conditions for the simulation (step S113; No), the conditions are set again in step S109 and the simulation is performed. If re-simulation is not required (step S113; Yes), the simulation result is stored in the database 1 in step S114.

  In step S115, the simulation result is fed back, stored in the database 1, and further input to the ERP package 2 via the data processing unit 54 and the relay program 51. In addition, you may input into the EP package 2 via the relay program 51 directly from the database 1 not via the data processing part 54. FIG.

  The inventory cost and physical distribution cost of the simulation result input to the ERP package 2 are set as key performance indicator (hereinafter abbreviated as KPI). KPI is used as a supply chain management index. For example, inventory costs and logistics costs in the supply chain are measured and managed using KPI as an index. As a result, it is possible to efficiently manage the supply chain without causing a delay in delivery of the product even when production changes.

It is a block diagram which shows an example of the efficient management support system of the supply chain which concerns on this invention. It is a block diagram which shows an example of the efficient management support system of the supply chain which concerns on this invention. An example of the flowchart which aims at the efficiency improvement of the supply chain which concerns on this invention is shown. It is a figure which shows transition of forecast information and material order confirmation information.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Database 2 ERP package 3 Sales plan creation part 4 Production plan creation part 5 Data management part 51 Relay program 52 Simulation specification setting part 53 Input / output control part 54 Data processing part 61 Input device 62 Display apparatus 7 Model creation part 8 Simulation condition setting Part 9 Simulation part 10 Result output part 11 Result evaluation part 20 Supply chain

Claims (7)

Material ordering information is transferred from prospective material ordering forecast information (forecast information) to material order confirmation information, and sales are made from material procurement to production, including production plans that may cause production fluctuations due to sales plan fluctuations. It is a supply chain efficient management support system that sets up a supply chain model that models a series of supply chains consisting of multiple business domains leading up to, and reproduces them on a computer for simulation to improve the efficiency of the supply chain. And
Storage means for storing data and information;
Model setting means for setting a supply chain model obtained by modeling the supply chain on a computer;
Sales plan creation means for creating a variable sales plan, generating sales plan fluctuation information and storing it in the storage means when a change occurs in the sales plan of the supply chain;
Based on the variable sales plan, a variable production plan is drawn up, and production plan creation means for storing in the storage means as production plan fluctuation information;
Specification setting means for inputting / outputting specification data for adjusting simulation specifications in the simulation;
The product information, the production information, and the distribution route information from an ERP (Enterprise Resource Planning) package in which product information, production information, and distribution route information are stored, the variable sales plan, the variable production plan, and Data that incorporates the specification data, generates simulation data based on the product information, the production information, the distribution route information, the variable sales plan, the variable production plan, and the specification data, and stores the simulation data in the storage unit Processing means;
Based on the simulation data in the supply chain model, a simulation corresponding to a sales plan change is performed by a simulator, and inventory costs and material procurement logistics in the plurality of business areas that do not cause a stockout when the sales plan changes A means to calculate inventory and logistics costs that minimize the total cost,
Efficient supply chain management support system characterized by 2. The supply chain efficient management support system according to claim 1, wherein the plurality of business areas are a material procurement business area, a production business area, and a sales business area. 3. The supply chain efficient management support system according to claim 1, wherein the stock is a material, work-in-process, or product while the material is an assembly product. 4. The efficient management of the supply chain according to claim 1, wherein the product information includes a material used for the product, a quantity of the material, a process chart of the product, and data of the configuration. 5. Support system. 5. The production information according to claim 1, wherein the production information includes production plan information of product production amount and delivery date, material inventory information, ordering information, delivery date information, price information, and product inventory information. The supply chain efficient management support system described in 1. 6. The distribution route information according to claim 1, wherein the distribution route information includes a distribution lead time and a distribution cost for each material of a predetermined distribution route and a temporary distribution route used for material procurement. An efficient supply chain management support system. In the simulation, the supply chain base information stored in the storage means, information related to the communication environment status, communication environment information, and distribution information related to the distribution status are extracted and added to perform the simulation. The supply chain efficient management support system according to any one of claims 1 to 5.

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