Tree diagram is to analyze "purpose-method" or "result-cause" layer by layer to find the most suitable method and the most fundamental reason. Because it is shaped like a branch of a big tree, it is named dendrogram, which is widely used in business circles at present.

Related chart

Correlation diagram is a graph that connects various factors related to phenomena and problems in series. Through the connected graph, we can find out all the important graphs related to this problem, so as to further grasp the key problems and seek solutions.

Affinity graph

Affinity diagram, also known as KJ method, refers to a method that collects a large number of data according to their affinity (similarity), so as to make the problem clear and help solve the problem.

Matrix diagram

Matrix diagram refers to a method of finding pairs of factor groups from problem items and arranging them in rows and columns respectively, and finding out the correlation or degree between rows and columns.

Vector diagram

Vector diagram, that is, network analysis technology, reflects the whole picture of the whole project or task with interrelated process network diagram and relatively simple calculation method, and points out the key processes and key routes that have influence on the overall situation, so as to make practical overall arrangements.

PDPC method

PDPC method is the abbreviation of ProcessDecision Program Chart in English and process decision program chart method in Chinese. The so-called PDPC method refers to a planning method of multi-scheme design for a certain purpose to cope with various changes in the implementation process.

Matrix data analysis

Matrix data analysis is a method to accurately sort out and analyze the relationship between the elements quantitatively represented by data on the matrix diagram by using principal component analysis and other calculation methods. This is a quantitative analysis method. Among the seven new methods of quality management, matrix data analysis is the only one that uses data to analyze problems.

Extended data:

1. Gather relevant personnel.

Gather experienced personnel related to this problem, preferably 4- 10.

2. Hang a big piece of white paper and prepare 2-3 colored pens.

3, by the acquisition personnel on the impact of the problem, the content of the speech will be recorded on the map, and may not criticize or question halfway. (brainstorming method)

4. The time is about 1 hour, and it can be over by collecting 20-30 reasons.

5. As for the collected reasons, which one has the greatest influence, the large group takes turns to speak. After consultation, those that have great influence will be circled in red.

6. Like 5, for those who have circled in red, if they think it is the most important, they can circle two or three times.

7, redraw a reason map, don't remove the circle, the more the number of circles is the highest priority.

Causal analysis chart provides a tool to capture important reasons, so participants should include those who have experience in this work, which is convenient for cooperation.

Baidu Encyclopedia-Seven Skills of Quality Management