With the Internet, online shopping, Website Design Internet stock trading has become increasingly inseparable from people's lives. The size of network maps related to the network depends on the level of detail of the project decomposition. If you divide them too carefully, you will not highlight key factors. If you divide them too roughly, they will have little effect. The characteristics of the project are different, and the network plan preparation also has its own characteristics. This paper makes some simple analysis on the characteristics of some projects.
For processing and manufacturing plants, this kind of project has its own characteristics and is more suitable for CPM. The key is often equipment supply, which is related to process design. The foundation works are related to the drawings of the approved equipment, and the construction can be delivered gradually according to the production needs. Dams and large structures: the construction sequence is relatively clear, and most project plans have a very important content. All kinds of temporary facilities (living rooms, warehouses, temporary buildings, pipeline supply centers, railway branches, various roads, etc.) closely related to the construction must be considered in a timely manner to ensure the smooth progress of the project. High rise buildings: Since all floors are basically similar, the network plan should first make a detailed analysis of a standard floor, and then reasonably organize all floors and various projects to achieve coordination. Generally, such as system assembly or structure, its structure installation is a key process, and other processes should be coordinated according to the progress of this process. The hybrid structure needs to be piecewise matched. The supply of elevators in equipment is often the key, and the ordering work must be done well to ensure timely supply.
Highway and pipeline engineering: all sections of the project are repetitive construction, and there are few intersections and connections between processes. The important thing is how to divide the project into several units for construction. This kind of project is similar to high-rise buildings, that is, they are all composed of complex processes, but the construction is complicated due to the huge amount of work. Hospital: equipment supply is often the key. It is usually constructed in stages and delivered for use step by step. All kinds of equipment, pipelines, electric heating and special technical devices must be well coordinated, and all construction units should be considered and guaranteed in space and time. Other projects: there are many other projects, but they can be combined according to the characteristics of the above projects.
The degree of detailed division of processes should be appropriate, which depends on the project characteristics and construction methods. In order to accurately estimate the time and organize the construction, the sub network diagram can be prepared in the standard unit of the project or in the assembly of important work quantities. The material supply is also very critical. This factor must be considered in the plan. The key material supply can be marked on the network diagram with arrows as a process arrangement, and its relationship with related processes must be clarified.
Any plan task is always composed of many operations. Before drawing a network, you should first break down the plan task into specific operations. How to decompose and the degree of decomposition will directly affect the structure of the network diagram. If the decomposition is finer, it will be more complex. If the decomposition is coarser, that is, if the process division is larger, the network diagram will have fewer nodes and arrows, and it will be simpler. The decomposition of planned tasks shall be carried out according to different units and requirements. For leading organs, it is important to look at the overall situation, grasp the key points, analyze contradictions and make decisions, so they can be broken down roughly. For grass-roots production units, they need to organize and command production and solve specific problems, so they should be broken down in detail. For the implementation of the whole project, the overall network diagram drawn by the whole product should not be broken down too carefully. For the sub network diagram drawn according to the divisional project, a component or construction stage, the decomposition should be more detailed than the former. As for the network diagram drawn by parts, it must be broken down into smaller processes. The general network diagram, the sub network diagram and the basic network diagram are all needed for more complex and longer construction projects. That is to say, the general network diagram with coarse decomposition shall be drawn first as the basis for controlling the progress of the whole project, and then the sub network diagram and grass-roots network diagram with finer decomposition shall be drawn as the project progresses. In this way, from coarse to fine, the combination of coarse and fine is gradually implemented, and the effect is better. Etc. The larger process needs to be broken down into several processes, and these broken down into smaller soil sequences should also be listed separately. In a word, all processes should be listed in the list without omission.
