What are 1 and CTQ trees?

CTQ means that it is very important for quality. Customers can judge whether a product or service is qualified by measuring CTQ. For example, the impurity content of purified water is a CTQ, and the measurable CTQ can be determined by decomposing the customer's demand with CTQ tree.

An example of a restaurant:

When eating in a restaurant, you will have many needs, such as good service, good environment and good food. But what is good service and how to measure it? What is a good environment and how to measure it? What is good food and how to measure it?

2. Why use CTQ tree?

It can transform vague customer needs into specific measurement indicators.

3. How to generate CTQ tree

① List the customers' needs one by one on the left side of the diagram;

(2) decompose customer needs;

(3) Determine whether the decomposed result can be measured;

(4) If possible, the decomposition has been completed; If it is not possible, continue to decompose until it can be measured.

4. Attention points of 4.CTQ tree

① All CTQ should be a measure of process output;

② When decomposing, you can ask, "How can I measure the needs of customers?"

(3) Ensure that all aspects of customer needs have been covered.

Second, the project schedule

1. What is the project schedule?

The team needs to make a plan for the project, including role definition, problem explanation, improvement goal, project benefit, project plan and resource requirements, etc.

2. Why use the project schedule?

(1) The project scope can be framed to avoid expanding the project scope;

② Various roles can be defined, including sponsor (Spon-sor/Champion) and team leader (b 1 ack bett/ Green Belt);

③ Possible benefits can be defined and confirmed in advance;

④ You can define other resources that the team may need;

⑤ Make the project progress plan;

⑥ It can be used as an agreement between the Six Sigma team and the management to clarify what tasks the team has completed and what resources are available;

⑦ With the continuous updating of the project, the progress of the project can be tracked.

3, how to make the project schedule

① The black belt/green belt designated by the sponsor or the sponsor initially fills in the basic information of the project, including the project name, sponsor, black belt/green belt, existing problems, project scope and possible benefits;

(2) The black belt or green belt has a preliminary understanding of the project, such as collecting some data about the problem and customer opinions;

(3) reach an agreement with the sponsors on the existing problems, project scope and possible benefits, and determine the required resources and team members, as well as the project time plan;

(4) The black belt or green belt shall fill in the project schedule according to the agreed results;

⑤ The black belt or green belt will submit the completed project planning form to the sponsor for review;

⑥ The black belt or the green belt will submit the completed project planning form to the relevant financial personnel so that they can review the calculation method of possible income.

4. Matters needing attention in project planning table

(1) The format of the project schedule of different companies may vary greatly, but it usually includes:

① Project name;

2 sponsors, team members of green belt and black belt factories;

③ Description of existing problems and project scope;

(4) possible benefits;

⑤CTQ； Project-oriented;

⑥DMAIC's time plan;

⑦ The goal of the project.

(2) If possible, in the top-level plan, stipulate the plan and method for the sponsor to check the project progress.

(3) If possible, in the project planning. Determine the plan and method of the consultation and inspection project of the black belt master

(4) The calculation of possible benefits should be based on how to achieve the project objectives. The calculation method shall be confirmed by relevant personnel.