The development trend forecast of the continuous winding glass fiber reinforced pipe industry is to predict and estimate the future development direction of the continuous winding glass fiber reinforced pipe based on the information of the past and present, using certain scientific means and methods.

1. Principle of analysis of the development trend of the continuous winding glass fiber reinforced pipe industry

1. Knowability principle
The knowability principle is also called the regularity principle. Through the investigation of the development and change laws of the continuous winding glass fiber reinforced pipe industry, the future development of the continuous winding glass fiber reinforced pipe industry is predicted. The prediction analysis is a trend judgment based on the knowability principle.

2. Continuity principle
We assume that in the production and operation process of the continuous winding glass fiber reinforced pipe industry enterprises, certain development laws in the past and present will continue, and the conditions that determine the development in the past and present are also applicable to the future. According to the principle of continuity, the future of the continuous winding glass fiber reinforced pipe industry can be regarded as an extension of history for speculation.

3. Correlation principle
There is a relationship of mutual dependence and mutual restriction between the development of the continuous winding glass fiber reinforced pipe industry and its related industries. Its future development trend and status will inevitably appear under the joint action of multiple factors. According to the correlation between the influencing factors, the future market development regularity of the continuous winding glass fiber reinforced pipe industry is judged.

4. Controllability principle
The continuous winding glass fiber reinforced pipe industry has its own development law. Under the condition of mastering its regularity, the subjective initiative and creativity of the continuous winding glass fiber reinforced pipe enterprises are brought into play, so that the continuous winding glass fiber reinforced pipe industry develops in the direction that meets people's wishes. This is the controllability principle.

2. Analysis method of development trend of continuous winding glass fiber reinforced pipe industry
(I) Quantitative analysis method
The quantitative analysis method mainly uses mathematical methods and various modern computing tools to scientifically process economic information, establish a forecasting and analytical mathematical model, reveal the regular relationship between the relevant variables, and make a forecast conclusion of the continuous winding glass fiber reinforced pipe industry.

According to the processing method of data, quantitative analysis method can be divided into the following two types:

1. Trend forecast analysis method
The trend forecast analysis method is also called time series analysis method or extrapolation analysis method. The historical data of the continuous winding glass fiber reinforced pipe industry is arranged in chronological order, and mathematical methods are used to process, calculate, and predict the future development trend of the continuous winding glass fiber reinforced pipe industry.

Such as: arithmetic mean method, moving average method, trend average method, weighted average method, exponential smoothing method, time series analysis method.

2. Causal prediction analysis method
The causal prediction analysis method is a method of predictive analysis based on the regular relationship between the continuous winding glass fiber reinforced pipe industry and its related industries, and the establishment of a corresponding causal mathematical model.

Such as: cost-volume-profit analysis method, input-output analysis method, regression analysis method, economic measurement method

(II) Qualitative analysis method
Qualitative analysis method, also known as "non-quantitative analysis method", refers to a type of prediction method in which professionals in the continuous winding glass fiber reinforced pipe industry conduct a comprehensive analysis based on their personal experience and knowledge combined with the characteristics of the continuous winding glass fiber reinforced pipe industry, and make inferences on the future status and development trend of the continuous winding glass fiber reinforced pipe industry.

Qualitative analysis method is also known as "judgment analysis method" and "collective opinion method" in Western countries. Commonly used analysis methods are:

1. Buyer intention survey method
The buyer intention survey method is a method of analysis by directly asking the downstream users of the continuous winding glass fiber reinforced pipe industry about their needs in a certain period of time.

2. Comprehensive method of sales staff opinions
When it is not possible to directly investigate the buyers of continuous winding glass fiber reinforced pipes or the cost is too high, the market demand and enterprise demand can be judged by asking sales staff.

Since sales staff are close to downstream users of the continuous winding glass fiber reinforced pipe industry and are familiar with the situation, combining the estimates of several sales staff can often obtain very valuable results.

3. Expert opinion method
The expert opinion method, also known as the Delphi method, was proposed by the Rand Corporation in the United States in the late 1940s.

When using the expert survey method, first form an expert group composed of dealers, distributors, market influence consultants or other authoritative persons. The number of people should not be too large, generally around 20 people.