An interrelationship diagram shows how different issues are related to one another. See examples and how to make one yourself. Learn more. An interrelationship digraph (aka network diagram) helps you see relations and influences between several concepts – even if those concepts. Interrelationship Digraph. Concept. An Interrelationship Digraph is used to determine which issues should be worked on first and how success will be measured.

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See the full list of Strategy Skills eBooks, templates and checklists available for free download right now. A key cause affects a large number of other items. The following principles form the basis for statistical thinking: As the diagram begins to come together, you will notice a flow interrflationship to develop on the chart, and you will soon begin to gain a picture of how you end up with the problem that was at the root of the whole diagram.

Posted by Gordon M. When used properly, these diagrams are highly useful and they can help you make intelligent strategy decisions about the future of the company in question.

Statistical Thinking to Improve Quality: Interrelationship Digraph Example

Today’s Top Picks for Our Readers: If so, those issues just might be at the heart of your problems. And, on many levels, you probably do. The above diagram shows the following key causes: Although they do not identify detailed reasons for the problem, interrelationship digrraph allow causes and effects to be clearly seen. The quality issue is the potential causes or factors contributing to late deliveries.

Interrepationship is okay — you are going to start sorting it out in this next step. Once you get the hang of using this tool in the workplace, it just may become your preferred option for solving problems and keeping your organization as a whole on track.

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Those with the most connections will usually be the most important factors to focus on.

Organizations are endlessly complicated, especially when they grow to be large businesses with many different divisions and numerous employees. Take a moment to look over your diagrams and decide if any of the points that seem to be leading to trouble are worth reviewing in greater detail.

Interrelationship Diagrams

Even the best businesses have problems — in fact, it is really the ability to find good solutions that separates the top performing organizations from the rest. While the relations diagram is one of the 7 New QC Tools described in the Japanese classic “Management for Quality Improvement”it is less frequently used than some of its stablemates. Because they make it easy to pick out the factors in a situation which are the ones which are driving many of the other symptoms or factors.

Comments This is seems to be a iterrelationship good tool. At the heart of the process, it is really all about cause and effect. To do so, you need to read the diagram carefully and choose exactly how you are going to proceed in order to come to a successful conclusion.

Will try using it going forward. Interrelationship diagrams ID show how different issues are related to one another and help identify which issues are causing problems and which are a result of other issues. However, in a fairly tangled situation, it is a powerful means of forcing a group to map out the interactions between factors, and usually helps bring the most important issues into focus.


An interrelationship diagram, or ID, is a chart that can help you to visualize exactly how a number of issues relate to one another within your organization. It is very likely that many of the points you have written down will fall into both categories, depending on their place in the timeline of events.

So, to start your first ID chart, you will need to pick out a problem that needs to be solved. Use your critical thinking skills, along with the perspective that you have gained from creating the diagram, and you should be a big step closer to a satisfactory outcome.

Most likely, the answer is yes. From there, the next step is to identify a number of various issues that could be impacting that problem.

A concern with a large number of input arrows is affected by a large number of other concerns. Connecting lines between the boxes indicate relationship with arrows showing the direction of the relationship.

Interrelationship Diagrams

What are the key factors or causes to investigate and improve? In the end, your ultimate goal is obviously to solve the problem that you started with at the top of the digrzph.

At this stage, you are simply brainstorming, so think of any issues within the organization that might be related to the problem interrelationshlp question, and write them down around the page. Every organization has a long list of problems that they need to solve, as it is the nature of business to go through a regular cycle of problems and solutions.

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