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Manufacturing resource planning system based on group management

Abstract starting from the characteristics and requirements of the group production management mode, this paper puts forward the functions and characteristics of the group manufacturing resource management system facing the group management production mode; From the perspective of economics, this paper discusses the capital control and multi department production balance control in enterprise groups; This paper discusses the characteristics and needs of enterprise group resource management from the two levels of group level and member enterprise level; A software prototype system is developed

keywords enterprise group MRP Ⅱ enterprise group manufacturing resource planning cost planning group supply chain management

the changes and challenges faced by the traditional MRP Ⅱ system

the closed-loop control system with the main line of master production planning inventory management - MRP Ⅱ system, with the increasing popularity and in-depth application of computer technology, its management philosophy, management ideas and management methods have been widely used in industry, It has a far-reaching impact on improving the modern management level of enterprises. However, with the increasingly fierce market competition, new management ideas continue to emerge. In particular, as the product of the contradiction between modern individual enterprises and socialized production and market economy, enterprise groups, as the advanced form of modern enterprise management system and organization, are playing an increasingly important role in market competition and economic life. The management system and management thought of enterprise groups have undergone fundamental changes compared with individual enterprises. MRP Ⅱ, a closed-loop control system based on the master production plan and inventory management, has been difficult to meet the needs of enterprise group resource plan (EGRP). Therefore, under the current situation, it is of great significance to study the functional development and architecture of MRP II system based on group management

2 enterprise group resource planning system

2.1 characteristics of enterprise group

enterprise group is a multi legal person economic consortium, and the group is closely connected with its members and members through equity, property rights, capital, technology and other economic ties. There are both economic relations and administrative relations among enterprise group members. The economic relationship of enterprise groups is reflected in that the group is an economic union with multiple legal persons, and there is a quasi market transaction relationship between member enterprises. Its administrative relationship is reflected in the common overall interests between group enterprises, which requires an organization to coordinate the interests between various legal persons. Under certain conditions, local interests should be subordinate to overall interests

enterprise groups are characterized by large-scale, industrial and financial integration, diversified operation, diversified members, decentralized layout, hierarchical structure, cultural diversity, flexible organization, and market internationalization

2.2 enterprise groups' demand for EGRP system

according to the management characteristics of enterprise groups, we can see that it will put forward the following new requirements for EGRP system:

(1) requirements for cross enterprise resource control and management. Enterprise groups are a multi legal person economic consortium. Therefore, the production scheduling and manufacturing resource control and balance within enterprise groups have the characteristics of cross enterprises. We need to consider the overall interests of the group from the aspects of capital, manpower, equipment, materials, technology and so on, while taking into account the local interests of member enterprises, and optimize the allocation of manufacturing resources within the group

(2) capital control requires that the business activities of enterprise groups are the activities of an economic system. Compared with individual enterprises, it manages and controls the business activities of the whole enterprise from the perspective of capital operation. From the perspective of capital, enterprise groups are composed of "investment center", "profit center" and "cost center". The classic MRP Ⅱ system is a closed-loop control system with the main line of master production planning and inventory management. Although financial management and cost management functions are integrated into the system, it is only a post accounting and does not play the role of pre planning and in-process control. Therefore, the traditional MRP II system needs to be further expanded and improved in terms of investment management, capital balance, cost planning and cost pre control

(3) system flexibility requires enterprise groups to be composed of multiple manufacturing systems, which are polymorphic in organizational structure. This structure can be quickly adjusted and reconstructed according to the needs of the market, which will be affected by various factors, making it difficult to decide, so that the enterprise group shows great flexibility and agility in the organizational form. Therefore, EGRP system must have flexibility and flexibility, and the system can be reorganized with the reorganization of enterprises

(4) the requirements of mixed management mode there are many types of production enterprises in the enterprise group, and there are many forms of production processes. Single piece, small batch and large batch assembly line operations coexist. Therefore, the EGRP system of the group is required to adapt to the requirements of mixed production mode

(5) the requirements of diversified management culture. Enterprise groups cross regions and borders, and the management culture of their members also shows diversity. Therefore, the EGRP system of the group must adapt to the requirements of diversified management culture

(6) sharing resources requires that the manufacturing resources of an enterprise group have a cross enterprise nature, and there is a relationship between supply chain and sales chain among group members. In order to ensure the effective use of various resources, we must establish the shared information standard of enterprise groups, establish the shared resource information database within enterprise groups, and realize the rational allocation and balanced utilization of limited resources through the resource database

(7) requirements of distributed architecture due to the remote distribution of enterprise groups, EGRP system must also be a distributed architecture. Take the database server of each member enterprise as the core to form a distributed c/s architecture group. Enterprises form their own intranet through wide area, form the integrated architecture of c/s and b/s, and realize the computer communication within the enterprise

2.3egrp system structure

2.3.1egrp function

according to the management characteristics and requirements of enterprise groups, the EGRP system is mainly divided into group level resource planning and member enterprise level resource planning from the perspective of management function the enterprise group level resource planning

system mainly starts from the overall situation of the enterprise group, and macroscopically controls the resource allocation of the whole group. Carry out the production resource planning, capital planning and capital balance of the enterprise group according to the business planning of the enterprise group; Balance the reproduction of various enterprise members of the enterprise group in multiple departments, organize the best supply chain for the production of the group, and ensure the most effective use of the overall resources of the group and the maximization of the overall benefits of the group

it is very important to reasonably allocate and organize group resources at the group level. The main contents of enterprise group level resource planning are introduced below

(1) utilization and development trend of automotive seat materials (cuixiaofeng, engineer of BAIC Motor Corporation Limited) reproduction balance of multi department enterprise members. Enterprise groups generally organize production closely around their core products. Around the core products, the core member enterprises have the dependency of supply chain, that is, one department is the consumer of another department. From the perspective of economics and economic cybernetics, there must be a certain balance between the scale and proportion of these enterprise members. This relationship is a balanced relationship of multi sector reproduction. Only when the production of each enterprise in the group maintains a balanced relationship, can the group obtain the best economic benefits

Table 1 is a multi sector reproduction process relationship table. To achieve the optimal production of the whole core product, we must ensure the balanced production of the whole core product supply chain. Table 1 multi sector reproduction relationship table

in the table, x1, X2,..., xn are the total output value of each department; Y1, Y2,..., yn are the final products of each department; Xij is the quantity of products of department I directly consumed by department J in production; V1, V2,..., VN are the labor remuneration of each department; M1, M2,..., Mn are the net income of each department

add horizontally in Table 1 to obtain the product distribution balance equation. For the convenience of expression, we convert the quantity of products into output value, that is,

xi=xi1+xi2+... +xin+yi (i=1,2,..., n) (1)

it reflects the distribution direction of the total output value of department I. The balance equation of production consumption is obtained by adding vertically:

xj=x1j+x2j+... +xnj+vj+mj (j=1,2,..., n) (2)

it reflects the consumption of various materials and labor in the formation of total output value of department J

introducing the consumption coefficient of means of production aij=xij/xj (I, j=1,2,..., n)

AIJ is also known as the input coefficient, which reflects the ratio of material products consumed by department J and department I in the direct production process, and represents the production technology level in a certain period. Generally 0 ≤ AIJ ≤ 1. Substituting AIJ into formula (1) and formula (2), there is the product distribution balance equation

product consumption balance equation

production balance equation means that in the composition of the total output value of department I, in addition to its final product (market demand), all parts are cleaned in clean and compatible commercial solvents, including two parts consumed in direct production: one part is the input of production materials of other departments; The other part is the input of the means of production of department I. The input of other departments is

its own consumption is aiixi. The product distribution equilibrium equation is expanded into a multi department equation group

the multi department reproduction model clearly reflects the relationship between the production departments. It provides a method basis for the enterprise group to regulate the production scale among its members and the application of computers. In the EGRP system, according to the theory of multi sector reproduction, we can use computers to balance the production scale of each enterprise member from the overall situation of the enterprise group, and formulate the macro-control plan of the enterprise group

(2) the organization of the optimal supply chain ensures the balance of multi department reproduction. At the same time, it also needs to ensure that every member enterprise in the Group supply chain is in the optimal state, that is, to select the optimal supply enterprise. According to the view of economics, when determining the input, an enterprise often determines the output according to the market forecast, adjusts the input for the production of this output, and establishes a factory with appropriate scale, in order to obtain the lowest production cost under this output. At this time, the cost is the marginal cost of the enterprise, and the output is called the optimal output. Generally speaking, in the short term, enterprises can only use the existing factory scale production. But there is a big difference for enterprise groups: enterprise groups are composed of many enterprises. When formulating production planning, it can determine the optimal Factory Group under a certain production scale from the existing multiple factories according to market demand, so as to form the optimal supply chain of enterprise groups

in EGRP system, it is necessary to establish a shared information resource base of enterprise groups to reflect various production attribute information and cost information of enterprises, and use computers to dynamically select and establish the optimal supply chain of enterprises

(3) investment and fund planning management funds are an important return node of enterprise resource allocation, which is particularly prominent in enterprise groups. Due to diversified operation, the member enterprises do not have exactly the same demand for material manufacturing resources, or even have nothing in common. But all manufacturing demands can be attributed to the demand for capital resources. Therefore, for the enterprise group level, a more important task is to coordinate and balance capital resources. Use the concept of opportunity cost to determine investment

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