The basic principle of 1SAD analysis method
SAD is the abbreviation of system accommodation and development. As the name implies, SAD is a systematic adjustment and development analysis of various factors that affect the goal. The basic principle of SAD analysis is to form a graphic model through the causal relationship and context between influencing factors, then quantify the degree of each influencing factor, and finally further quantify the relationship among the final goal, intermediate goal and improvement scheme.
2 The analysis process of SAD analysis method is as follows:
2. 1 Determine the analysis scope
Through consulting data, summarizing experience and expert investigation, various factors affecting the construction of small-scale farmland water conservancy projects are determined, and according to engineering experience or expert scoring method, the main factors among many factors are selected as the research object.
2.2 establish SAD analysis model
Analyze the causal relationship between the main factors, draw a graphic model, and systematically analyze all factors according to the graphic model, check out the missing or wrong influencing factors, and further determine the correctness and rationality of the model.
According to the graphic model, the comparison matrix of three levels of influencing factors is constructed, so as to further determine that the first level of each factor in small-scale farmland water conservancy projects is the level of large influencing factors, that is, the comparison of the ultimate goal of relative management of funds, management, personnel and construction; The second level is the comparative mathematical matrix of medium influencing factors, that is, the medium influencing factors are relative to funds, management, personnel and construction respectively. The third level is the comparative matrix of small influencing factors and medium influencing factors, such as "farmers' self-financing" and "social financing", and the comparative mathematical matrix of influencing factors with low farmers' participation in project construction and frequent project disputes.
2.3 Quantitative calculation of the degree of each influencing factor
A system for analyzing various influencing factors in SAD model. Choose a straight line or a closed curve as a path and calculate along the path to determine the influence degree of each influencing factor on each path. In the calculation process, manual calculation can be used for simple models or models with clear paths, but computer calculation should be used for graphic models with complex models or staggered paths.
2.4 Analyze the responsibilities of various influencing factors and put forward improvement plans.
By quantitatively calculating the degree of mutual influence of each influencing factor, the causes and preconditions of each influencing factor are studied, so as to analyze the responsible units and posts of each influencing factor, formulate improvement plans, minimize the influence of each influencing factor on the construction of small-scale farmland water conservancy projects, or adopt reasonable plans to avoid the influence of main influencing factors on the construction.
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