GB/Z 18728-2002 Technical specification for the functional structure of manufacturing enterprise resource planning (ERP) system
Some standard content:
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National Standardization Guiding Technical Documents of the People's Republic of China GB/Z187282002
Technical Specifications for Functional Structure of Enterprise Resource Planning (ERP) System for Manufacturing Industry
FRP System Function Structure for Manufarture Technology specificatior
2002-05-20Release
People's Republic of China
General Administration of Quality Supervision, Inspection and Quarantine
2002-12-01Implementation
GD/Z.187282002
ERF system performance structure reference...
Sales and distribution management
Demand management (demand management)Production planning (M)
Material requirements planning (MRP)
Production data management
Inventory management
Workshop planning and scheduling
Capacity requirements (CRP) control
Purchasing management
Industrial management
T/Electrical production
Financial management
Production cost accounting
Computer aided quality management (CAQ)
Equipment management
Human resource management
System performance testing
Spiritual A "Record of Tips")
Maintenance materials
TKAoNmKAa
G1/2.18/28-2002
With the development of computer technology. Modern society has entered the information age. Under this situation, enterprises must adopt modern computer information enterprise management model to improve their competitiveness in the field of enterprise resource planning. ERP is an important tool to realize the advanced computer information enterprise management model. ERP is developed based on manufacturing resource planning MRP. FRP has absorbed the management ideas of our times, such as IPR and JIT. It realizes the statistics and management of all resources of the enterprise. Therefore, FRP has been gradually developed on the basis of MRP1, including production, distribution management, equipment management, process management, personnel management, quality management, financial management, and asset management. With the development of the latest technology and modern thinking, it is enriched and developed. The enterprise resource planning ERP system is based on the manufacturing resource planning MR111 system. It uses the latest computer technology and modern thinking to comprehensively calculate the resources of the enterprise. This guiding technical document is an item of the "MRP1 standard system". Structure, with the abbreviation of this ER software produced by domestic and foreign users.
"MR1 standard promotion system\ has been officially recognized as an industrial standard in the United States, and has been used by many manufacturing industries to quickly launch their software and points.
It is a guiding technical document for the preparation of RP system for enterprises and development units to provide a model for research and development of RP system. The guiding technical document mainly describes the structure, logic, and core functions of the ERP system in the manufacturing industry, and also describes the differences between the weak systems and the parts.
This guiding technical document is based on the Chinese Machinery Industry Standard JB/T8423-1916 (Manufacturing Industry) MRP1 system structure, and mainly adds small IT/more modules including production, financial management, production cost accounting, quality management, distribution planning, equipment management, and human resource management. This guiding technical document is for reference only. For any opinions on the construction of this guiding technical document, please contact the State Council Standardization Administration. This guiding technical document is a reminder of the time of publication of this guiding technical document. This guiding technical document was proposed by the China Machinery Industry Federation. This guiding technical document was drafted by the National Technical Committee for Industrial Automation and Standardization: Beijing Machinery Industry Automation Institute. The main drafters of this guiding technical document are: Huang Diansen, Ma Xiubin. General
National Standardization Guiding Technical Document of the People's Republic of China for Manufacturing Enterprise Resource Planning (ERP) System
Functional Structure Technical Specification
FRP System Functional Structure for Manufacturing Enterprise Resource Planning (ERP) System
1. 1 Specification
GB/1872B—2002
This guiding technical document is a kind of engineering technology: It is used in various types of manufacturing industry to compare and evaluate HRF software products, and it also provides important guidance for the modification and primary development of ERP software systems.
The new functions summarized in this guiding technical document are the basic functions of ERP system. The functions of ERP system of each enterprise should be determined according to the specific situation of the enterprise:
2 Definition
This guiding technical document adopts the following definitions. 2.1 Item F1m
What is an object of manufacture or purchase, such as parts, semi-finished products, sub-assemblies or net products? 2.2tFaster Production Plan [MPS]: Product plan based on independent demand: The plan is driven by the main planning staff, and its planning is driven by the main planning staff. The main planning staff must also consider the independent planning, production plan and other important factors, such as delivery orders, material utilization, available materials, annual policies and daily standards, and b) the results of non-production control. The production plan shows customer orders, random testing, paid orders, total inventory and contract quantity.
2.3 Independent demand independent planning
The demand for an item is independent of other demand. For example, the demand for the final product, the demand for the parts to be tested for damage, and the demand for the parts to be maintained are all independent demands. 2.4 Related Demand. prmlrmdemaai
It is the demand that is directly related to other materials in the final product or the final product. This demand is calculated from the pre-test. An inventory item can include two kinds of demand, namely related demand and independent demand. For example, a component can be a fixed part or a year.
2.5 Material Requirement Planning. Marrial Relaissuance Planning (MRP) This is a technology to quickly record and predict future inventory status and production planning. It orders replenishment materials according to time periods. It also recommends re-issuing orders if the delivery period and demand period are not paid in the time period. 1. Rcuh-Cut Capacily Planuriny (RCC) is a basic planning technology for organizing production or procurement according to the supply date of parts. It is also an effective method to ensure the timely delivery of orders. 2. Rcuh-Cut Capacily Planuriny (RCC) It converts the previous production plan into the energy demand of the relevant input, and the relevant supply chain includes the main equipment and parts of the equipment. It was approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China from 2002-05~20 KAa
2002-12-01
GH/218728—2002
The actual cost of the business is to compare the output and demand of each related resource. This comparison can help the planner to formulate a reasonable main production plan. There are three methods for formulating the "capacity planning method" that is, the step-by-step method, the single method, the comprehensive method and the method of overall resource analysis and diagram. 2.7 Capacity Renewal Planning (CRP) determines the function of the water supply and the energy saving and the pressure reduction. This term refers to the amount of non-powered machine capacity required to complete a task. In the MR system, the shop orders issued are entered into the CRP. The CRP converts these orders into processing hours for each time period and each work center through the process route and time specifications. These requirements provide a basis for planners to adjust capacity. 2.8 New MRregelltrlionMRp
This is a new or simplified MRP method: all material consumption orders in MPS are re-decomposed: new demand orders are generated, replacing the old MRP document. It is called a "state-driven" system. The cost-competitor runs at least once, 2.9 Net Change MRPc chaigeMR
This is a method of calculating MKP. Through this method, the material demand can be continuously stored in the computer. Whenever there is a change in demand, only the parts affected by the change are partially expanded. It is also called a "change-driven system. Only when there is a change, MRP is regenerated.
2.10 Bucketed system
This is a method of calculating MRP based on a fixed period. According to this method, a series of projected time periods are defined, and the effective data within this period is usually the same: in this business, the monthly system is used to track the monthly and weekly accounts and calculate all the effective plans, 2.1 Bucketed system
This is a method of calculating MRP based on uncertain periods. According to this method, all previous data are represented, recorded and processed in phases:
2.12 Make-to-order
Make-to-order is a production environment. Products are manufactured after receiving customer orders. For non-business customers with a long lead time, the general department must wait until the order arrives. The inventory planning is in advance before the order arrives. For those optional items or other parts that are already in stock in the warehouse before the order arrives, they can be produced by the assemble-to-order method. 2.13 Make-to-order: Make-to-order manufacturing is a production environment. All products are shipped from the product warehouse or received directly, so the products are manufactured before the customer order arrives.
214 Assemble-to-orderassemblyml:lp=:-rilcIn order to meet some special needs of customers, the final product is composed of some standard parts and some special parts required by the user. When the customer order arrives, it is assembled according to the customer's order. The matching and sales are driven by meeting the customer's order. 215 Order design
The products required by the user must be specially designed or made on the original standard product. The system allows for large-scale customization. Each customer order uses a unique set of parts, a unique material order and a process route, so the order is automatically routed from design to delivery.
2-16 Master Plan Order
The master plan order is a planned order generated by the production plan. It is compiled by the planner and cannot be completely modified by the computer. The only way to confirm the planned order is to confirm the planned order. 2.17 Confirm the planned order The confirmed planned order is a planned order that can be completed in terms of efficiency and time, allowing the computer to automatically modify it. Only the production planner is responsible for maintaining it.
When using this technology, the planner can take advantage of the MRP system to wait for the material and capacity requirements generated by the confirmed plan order to gradually change. It can also use the planning function to maintain the master production plan. 2.18 Available-to -promiscCB218728—2002
refers to a company deducting the remaining part of the contract from the inventory and production plan of the company. It is generated through the master production plan and contract data, and can be used as the basis for signing contracts. 2.19 Direct batch method Ent-cr-lat
A batch technology used in MF. When it generates a plan, its order quantity is the demand quantity of each cycle. 220 Fixed batch delivery fixdlot
A batch technology: when it generates a plan, the order quantity is fixed. Its fixed quantity can also be determined by the economic order batch method budget quality.
2.21 Economic order quantity ... The purpose is to minimize inventory and inventory occupancy costs:
2.22 All batch dynamics sizing techniques include various methods, mainly: minimum total cost method, minimum unit cost method, minimum total cost method, etc.: lerstllcst
This technique compares the preparation (ordering) costs and the incremental costs of various batches to calculate the order cost, and then selects the one that is closest to it.
Unit cost (leastcos)
It adds the ordering cost and handling cost of each batch, divides it by the number of pieces in the batch, and then selects the batch with the lowest unit cost.
Extra period n! Street (partperiadbelancng) It is similar to the minimum total cost method, the difference is that it uses the method of "first, last" to calculate the batch size using the characteristics of "first, last" - and before it is determined, the next period and the previous period market demand are calculated to verify whether it is economical to include them in the current batch.
?.23 Cycle batch FetiadrcerCuantityr determines the batch station technology, and its batch size is equal to the sum of the net demand of the given next cycle (a few weeks, 2.24 Modified i goods see onenrderule
In order to The specification of a single order is confirmed when placing a part. The earliest order date is the date when the product is insufficient. The order is the demand.
2-25 Material Clearance RillnfMalerial (!M) The bill of materials card constitutes all the assembly parts, parts and materials required to manufacture an assembly. It contains the list of each component required to make an assembly. It can be used to connect with M to purchase the quantity that must be placed in the production order in the near future. There is a small format for the effective material clearing order, including new material clearing orders, initial material clearing orders, block (plan> material clearing orders, timely material clearing orders, reduced material clearing orders and original material clearing orders, etc.
2.26 Layer code evel d
A number that represents the lowest level of a component in a material bill of materials. For a given component, its net demand is calculated only after the demand from the upper levels to this level has been calculated. Low-level codes often assist computer software in automatic calculation and maintenance. 2.2 Resource Planning MsrluringRexurcePlalining (MRT1) It is a set of effective planning for the production resources of manufacturing enterprises. It provides efficient numbers or captures the entire production plan, according to the financial plan described by the accounting amount, and can simulate the full resource capacity. It It is composed of many related functional groups, including business planning, sales and production planning, production planning, material requirements planning, capacity requirements planning and capacity and material execution support systems. The information and financial reports of these systems are collected together, such as the overall business plan, pre-purchase report, delivery budget, inventory plan and other monetary reports, and the manufacturing resource planning product is a direct extension and supplement of MRP. 2.28 Enterprise Resource Planning (ERP) System The concept of FRF was first proposed by the American company GsTnroupinc. It is an information system for financial needs. It takes the manufacturing resource planning (MRI) project as the core. Based on the development of computer technology, it gradually absorbs modern ideas, such as enterprise BPR, just-in-time production (IIT), etc., to plan and implement all the resources needed for the purchase, production, delivery and finance of the enterprise in a unified manner for customer orders. ERP system is widely used in M On the basis of RFI, this function was developed: such as JIT, equipment replacement, quantity management, distribution management, human resource management, configuration management, post-service management, transportation management, etc. The ER system uses the latest computer technology: such as graphical user interface (CUI), SQI, structured consulting language platform, relationship management system (RTSMS), technology for customers, fourth generation voice/computer-assisted execution software [4G1. ASF, etc. The work that does not match the low average temporary communication technology is improved. ER will go to the risk analysis technology to deduct the management of the stock market.
2.29 Distribution
Definition refers to some business related to the distribution of property rights, which can be used to supervise the distribution of final products or spare parts from the manufacturer to the customer. This includes transportation, warehouse circulation, inventory control, material procurement management, order maintenance, out-of-region and regional outages, package charges, number of phases of processing, and communication network returns. In general, the distribution of materials is carried out through the line or multiple regions in the warehouse (distribution center).
2.30 Distribution demand planninglislriinr.Jeirr-uruspar.ninpa) determines the demand for replenishment of sub-distribution points: by using the method of judging the quantity of each item in the inventory, the production plan can be made according to the demand data of each area according to the quality of the multi-level distribution network. The figure shows the MRP selection of the standard. In the common supply source, some demands are taken as the corresponding production demands. Other methods can be used to calculate the replenishment of inventory, such as the cycle fixed disk method or the order replacement method. Under certain restrictions, the order can be placed within the time limit.
2.31 Distribution Resource Planning (LRP) iairilulmKiuwPlaming In the "distribution system", the distribution demand plan is expanded into a plan with relevant resources, including warehouse width, processing energy! Funds, delivery points, etc. bzxz.net
2.32 Order Seheduled rteuit An order that has been assigned a delivery date. Planned receipt: The planned receipt of an item on a certain day will be half of the planned quantity of the year. The planned receipt in the production workshop is in process, and the planned receipt in the procurement department is ordered: 23. Bill of materials planniahillofmblia is a form of product structure. The bill of materials is a form of product structure. It is artificially divided into groups of items and is presented in the form of a bill of materials. It can be used to express the planned proportion of each component of a product, that is, the percentage of each component, thereby simplifying the plan. 34. Liar demand Liarcguircment
The core demand is determined by the production plan. It is the sum of the independent demand and related demand of the part after considering the net market demand of the existing inventory. 2.35 The lead time is the minimum cumulative lead time before the production plan is compiled. The lead time is defined as the minimum cumulative lead time before the supply of new parts or components is completed plus the time required by the production center to change its capacity or the supply chain. 2.36 T1irets
In the M1 system, the net demand size of a part or component is also reduced as a result of the change in the production plan. When the demand changes, the batch and lead time are determined. 2.37 Lead time (or "series increase") The time to perform a required activity. The lead time of each component can include the preparation time, queue time, manufacturing time, movement and transportation time, receiving and inspection time. 2.38 Just-in-Time It is a manufacturing mechanism that eliminates all non-value-added links and continuously improves productivity according to the production cycle. It includes all stages of manufacturing and final products, from raw materials to final products, from engineering design to delivery, and all necessary activities. The goal is: to meet the requirements of high-quality batches, there is no requirement for warehouses to have zero waste; to reduce preparation time, queue time and batch processing, and to increase the number of correction operations; and to complete these tasks with the minimum or no cost. In a broad sense: it applies to all types of manufacturing, including state-of-the-art operations, process industries, and repetitive production. 2.39 Kanlan
This is a small production method for just-in-time production (T). This production method uses standard containers or containers of different sizes, each with a card attached to it. This production method is a pull production system in which parts are obtained from the process or supplier by posting information on the card. In Japan, the translation of "name" is not strict, and it is translated as card (ard). Bulletin board (hibpard) or trend sign board (eign, etc.) is different from the special planning system. The term used in the development of the management "This term is used by the Japanese Ioyo IH company, all of which agree with the same. 3EKP system function follows the structure selection
3.1ERI system improvement structure is based on
FRP system is developed on the basis of" MRP" system: its basic functional structure consists of the following parts: production:
a! Sales replacement! Sound management
) Lei seeks platform management:
Center) production plan;| |tt||Material planning
<) Production base data management;
Parts inventory
Time planning and scheduling;
h) Capacity planning and control,
Procurement management;
1) JIT/production
1) Financial management,
n) Production cost accounting,
1) Quality management:
n) Data intelligence:
Sales and sales management;
|) Human resource management,
The structural relationship of these modules is shown in Figure 1. TTKAoN KAca
Derivative and divided into the material theory
The original existence of the theory
3.2 This season's construction period
Ten cow production creation
GB/Z1B/28
m heavy industry production
sea material music design release
present efforts to seek design
and technology
new hall will manage
the same planning period and program
adopt the transmission theory
drink each treatment
Figure 1: FRP system Basic technical function system structure T joint
data contention of production points
human resources search
E/MRFT logic test storage pool model: in accordance with the actual demand environment, infer the scale in the computer, or the model technology is not in the future, the problem of the construction practice, the problem of the operation, a running ERP/MRP1 system has the following characteristics, resource planning (material demand training planning, etc. can also be calculated again: b) when changing the planning, there is a method to read the dynamic operation! C when calculating resource planning, there is a method to describe the non-working days; c) there is one of the characteristics of the planning outlook period; net change and re-step into the planning system. There are two methods. One method is called rebirth or the other method is called learning and changing. Recalculate a new plan completely by completely removing the original resource plan: net change "re-calculate the changes made after the last plan" to re-upgrade the design changes: there are two standard changes in MRF flow: a, batch change, mark the cumulative production plan, and pool the marked items when scheduling the plan; b, reverse net change: when scheduling the plan, run the system to reschedule the plan at any time, and the standard double change flow is the best way to get the updated plan. The net change method is better than the net change method. Some companies have achieved a wide range of risks and use the net change system. The batch time period is distinguished from the non-time period by each person to modify the calculation time period. The end plan calculation method is ERP/MRP! Another short-term plan has two points: a) Time period
b) Time return:
The system defines a series of time periods, and all manufacturing services fall within these time periods, and the cost planning and calculation technology is used to operate these time periods. The non-time period system calculates the total amount of manufacturing services according to the date, and the non-time period is not a special part of the non-time period. The internal
4 time days are connected with the social calendar. In the workshop daily decision, 1 work port is digitized. The system has a method of converting these two calendars: the workshop calendar is a method for the system to calculate the production rate at different times: and the conversion of the workshop calendar into the social calendar is convenient for people to communicate with each other. The period needs to be greater than or equal to the material accumulation period. The MRP projection period can be different from the main production plan or the special forecast period of the energy plan. 4 Sales and distribution management 4.1 Sales management number 4.1.1) The basic data of sales planning are as follows: From customer management to sales, invoicing and after-sales service, the whole process of sales business is tracked and managed, and the sales and delivery plan is monitored and controlled in real time to improve the execution rate and sales service cost, timely track the customer payment situation, regularly conduct statistics and analysis, and provide decision-making basis for formulating sales strategies. b) Sales planning: mainly based on order data and forecast data to prepare annual and monthly sales plans. ) Trial price and pricing: provide promotion information to provide a basis for sales personnel to carry out sales activities, and customers can understand the product sales price level through inquiry.
Sales Inquiry
To establish sales contract and carry out follow-up management of signed contracts, including invoicing, delivery management, return management, contract closing management, etc.
To describe the customer service case, including basic information of the customer service, customer letter information, customer file information, customer information and service status, () Sales company's inquiry
Previous order status, delivery status, contract execution, delay identification, etc. g) Sales statistical analysis
To calculate the total sales of enterprise products, sales and sales volume of products by product and batch region, sales volume by customer Statistics on the number of orders and amount of various products purchased by users, income: The distribution method is often used in sales analysis: 4.t.2 This function
Sales management mainly includes the following basic functions: 1) Comprehensive sales plan:
6) Price quotation management:
1) Sales contract management;
d) Advertising file management;
2) Sales contract inquiry;
f) Sales communication with branches.
4.2 Distribution management
The core part of distribution management is to formulate distribution resource allocation plan, and the distribution resource allocation is different in the MRP1 of the market network environment. 4.2.1 Cost efficiency
The basic reversal of distribution management is as follows:
:! Distribution belt demand planning system
At each distribution center or each receiving plant, material demand planning is performed for each received order item. Output planning order planning. For T KN KAca
GR/7.18728—2002
At the distribution center, the quantity of all units SKUs is difficult to predict and the customer orders signed are used as the average production demand. The MRP net demand calculation logic of the plant is sufficient based on the available inventory, safety inventory and SK planned receiving and releasing plan requirements. This conversion can be realized by converting the planned orders of the distribution center and the receiving plant to the supply plant. The daily processing of the project in the transportation test is similar to the processing process of the monthly manufacturing plan, but there are some differences. The requirements of the auxiliary card in the transportation and the safety points of the goods movement are called maintenance. This information includes shipping order number, item date, quantity, delivery date, consignor, delivery fee, shipping price, etc. It is an indispensable part of the effective distribution network management. The precise transportation and load analysis in the distribution environment are the same as the precise research of RI. The reduction of transportation planning is similar to RP. If the distribution center or the receiving worker is related, according to the distribution order for delivery, confirm the order and compile the distribution demand plan, and then calculate the distribution vehicle demand plan, the size of the packing box, and the packing size to guide the transportation demand plan. The transportation plan can be generated according to the system. The brief report of the transportation plan and the detailed report of the transportation request can also be displayed at any time to help you solve the problem in time. The same cargo plan is completed. Add a new date for delivery, sign a store safety deadline and use the delivery to a distribution center to receive the factory. The plan can be completed. 4.2.2 The function of the distribution center can be used to reduce the distribution demand plan: The distribution demand plan can be completed. And the transportation plan can be completed and detailed reports can be generated: Display the monthly delivery information during transportation. 5 Demand management (demand management) Demand management includes forecasting, customer orders, spare parts and other distribution needs, as well as the needs of the main production points of materials in the factory. These needs are fully input to the MS. The purpose of demand management is to prepare a demand plan that contains the current demand information, try to avoid slight changes in MPS, and understand the different demand situations in the market as early as possible, and take effective measures. 5.1 The function of the demand center is to obtain the current demand information through different demand information flows, try to avoid slight changes in MPS, and understand the different demand situations in the market as early as possible, and take effective measures. 5.1 The function of the demand center is to obtain the current demand information through different demand information flows, try to avoid slight changes in MPS, and understand the different demand situations in the market as early as possible, and take effective measures. 5.1 The function of the demand center is to obtain the current demand information through different demand information flows, try to avoid slight changes in MPS, and understand the different demand situations in the market as early as possible, and take effective measures. 5.1 The function of the demand center is to obtain the current demand information through different demand information flows, try to avoid slight changes in MPS, and take effective measures as soon as possible. 5.1. 1 Forecasting System
For most companies, the demand management process in production planning starts with forecasting. Demand forecasting is the source of MPS.
A comprehensive system should have the following four functions: a) Have a variety of forecasting techniques and use them to evaluate the different forecasting techniques: b) Take into account the forecasting methods for factoring factors: c) Forecast the product (product) series by scheduling, allocating, and distributing the size of the items: d) Before the system needs to be modified, there must be a way to check and approve (confirm) the forecast. If the forecast estimate is confirmed, the planner can make other pre-made data for the production planning. 5.12 Entering Customer Orders into the System
The production order input system is used to increase the efficiency of the production order input system. Delete and remove customer orders. If the items in the customer order are directly calculated by MRP, this customer order will be sent to the net demand plan and different demand logic of MRP as a demand. If this item is controlled by MPS, then this customer order will be sent to the net demand calculation and elimination demand check logic of MTS as a dynamic flow: Each customer order input system should have the following functions: 1) Calculate multiple line items into a single order. Each line item of each customer order should contain various information, such as date, confirmation date, number or quantity. Customer orders can be consulted for demand confirmation. 2) Be able to modify and delete irregular customer orders. 3) Accept individual items on customer orders and check and sign contracts. There are two methods for analyzing customer orders that have been received:
Before the order is received, check,
When the order is input, check:
After the order is input, check.
) There are two methods for analyzing customer orders that have been received: 1) Using the efficiency data, compare the existing capacity orders with the forecast to identify abnormal requirements; 2) Encode the abnormal requirements for analysis and evaluation: Generally, some simple rules are required to identify abnormal requirements. 5.1.4 Forecasting logic systems have a method to reduce the forecast number by customer orders, which are part of the forecast. The forecast consumption reversal is based on the current plan and actual orders. It is the most accurate representation of market demand. The reverse consumption calculation can be performed in two places: a) when the customer order is input:
b) in the forecast consumption calculation as part of the system, and the accumulated demand of customer orders in the forecast period is reduced. If the customer order demand in this period exceeds the expected value, the system can reduce its forecast value in the previous or next period of this period. The system should provide a logical system for handling overdue cash and customer orders. An effective system includes the calculation of total demand, which is divided into scheduled consumption, normal and abnormal customer orders, related demand, distribution demand and factory orders. The total demand can be used to continue the production planning and MP5 plan of other enterprises. 5.1.5 Independent demand
The demand replacement system must provide a method to import independent demand into the MPS system. This demand is not the top demand of PS but is included in MRP:
Independent demand is included in the MR system as gross demand. These gross demands are added to the decomposed gross demands to obtain the total gross demand. These total gross demands are used in the MR system to calculate customer demand, check and compile planned orders: 5.2 This function
screening module is relatively simple, and its functions are as follows: a) connection between M1\S system and planning system: ) selection of existing customer orders and items, identification of abnormal demand, opening of demand can be a single order or customer order) specify and identify abnormal demand method: ) channel fast prediction slow consumption, including the following functions: weekly processing and measurement of customer orders that do not match the test; T KANm KAca
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