Fishbone
Transcript: How to make a fishbone diagram?? 1. Agree on a problem statement (effect). 2. Brainstorm the major categories of causes of the problem. 3. Write the categories of causes as branches from the main arrow. 4. Brainstorm all the probable causes of the problem. Ask: “Why does this happen? 5. Write sub–causes branching off the causes. Continue to ask “Why?” 6. When the group runs out of ideas, focus attention to places on the chart where ideas are few. 4M fishbone University of Jordan Chemical Engineering Department Quality Control and Management An example for the simple fishbone diagram: is why most of student disfavoring of studying in the libraries of the university of Jordan. 4S Fishbone diagram Introduction disfavoring of letting the car agency to repair your car is taken as an example. 8P Fishbone diagram This type of C&E diagram is commonly used in the service industry. It organizes information about potential causes into four common categories: Suppliers, Systems, Surroundings, and Skills. Ishikawa’s Diagram Types of fishbone diagram Fishbone Diagrams To illustrate the design of experiment fishbone diagrams, the distillate purity in a distillation column is taken as an example 1) Definition 2) How to construct fishbone diagram 3) Fishbone types 4) Examples Overview The cause-and-effect (C&E) diagram has no predetermined categories of causes, so you can determine categories that may be unique to your organization. An example on the 4M fishbone diagram is the quality of the distillate in the distillation column Ishikawa’s diagram, fishbone diagram or cause and effect diagram. A diagram made by Prof. Kaoru Ishikawa. The naming of this diagram as fishbone diagram comes from it's shape - the skeleton of a fish. Fishbone Diagram Procedure Simple fishbone diagram Done by : - Abullah Zabin - Hasan Abu-Hashem - Khalaf Al-Rentisi - Moath Dweik - Sami Jebrel In order a specific product to meet the costumer satisfaction, the process in which the product is made should be stable. More precisely, the process should operate with little variability around the target dimensions of the product quality characteristics. To achieve this, a powerful collection of problem solving tools called statistical process control (SPC) is used. Cause and effect diagrams There are five types of fishbone diagram : 1. Simple fishbone diagram 2. 4S fishbone diagram 3. 8P fishbone diagram 4. 4M fishbone diagram 5. Design of experiment fishbone diagram This type uses 8 categories: Procedures, Policies, Place, Product, People, Processes, Price, and Promotion. This variation is also commonly used in the service industry, but can certainly be applied in nearly any type of business. Design of Experiments Fishbone This variation, commonly used in manufacturing, allows you to organize potential causes of a problem into these categories: Man, Materials, Machine, Methods, Measurements, and Environment. Thank You An example for the 4S fishbone diagram is the substandard quality of food in a restaurant. The last type of Fishbone diagram allows structured brainstorming about potential factors for a response variable to help you design an experiment. You can use this diagram to organize information about potential factors of response variables into Controllable, Uncontrollable, Held-Constant, and Blockable Nuisance categories.
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