What levels and two dimensions does the nine-screen method use to think about problems?

The nine-screen method thinks about problems in two dimensions: time and system level.

The nine-screen method is a typical system thinking method in TRIZ theory and an important tool for system analysis. Altshuller called it a genius invention of the nine-screen method.

The nine-screen method can help us conduct a comprehensive and systematic analysis of the problem from multiple dimensions such as structure, time and causality. This method not only studies the current situation of the problem, but also considers the past, future and sub-sequences related to it. System, supersystem and other multi-faceted states.

Simply put, the nine-screen method uses space as the vertical axis to examine the "current system" and its "components" (subsystems) and "system environment and belonging (supersystem)"; is the horizontal axis to examine the "past", "present" and "future" of the above three states.

The purpose of the nine-screen diagram is to find resources and analyze the structure and environment of the system. First, start from the technical system itself and consider the available resources. Second, consider the resources in the subsystems and supersystems of the technical system. Third, consider the past and future of the system and look for available resources. Fourth, consider the past and future of supersystems and subsystems.

The development trend of the nine-screen method:

1. The nine-screen has gradually become a tool for TRIZ to solve technical problems

In the classic TRIZ theory, the role of the nine-screen and The status is relatively high, but people usually position the nine-screen diagramming method as a way to expand thinking. However, with the continuous development of TRIZ theory and the continuous enrichment of problem-solving tools, the nine-screen diagramming method has gradually developed into a separate method for solving technical problems. tool.

At the same time, the nine-screen diagram introduces the opposing concepts of system and anti-system, allowing many problems to be solved.

2. The combination of the nine-screen diagram and the law of technological evolution to solve problems

The combination of the nine-screen diagram and the law of technological system evolution to solve technical problems has become the current mainstream method. To a certain extent, it is a manifestation of the law of technological system evolution. The law of technological system evolution can be used to predict technology, and the nine-screen diagram can be used to analyze the composition and supersystem of products and technologies, and finally obtain solutions.