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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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. To do so, you need interreltaionship read the diagram carefully and choose exactly how you are going to proceed in order to come to a successful conclusion. And, on many levels, you probably do.

Recall that we called the entries in the digraph concerns. Posted by Gordon M. In the end, your ultimate goal is obviously to solve the problem that you started with at the top of the page.

Whatever the case, be sure to do a thorough job of exploring potential causes of the problem before moving on. A diagram consists of a set of circles representing each issue to be considered organized in a radial pattern on the page. A key cause affects a large number of other interrelatioonship.

The whole point of this interrelationship diagram exercise is to determine how things work together in the organization, and this portion of the process is the most important step of all.

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, in order to straighten things out mentally and provide yourself with a chance to solve problems in an effective manner, you may want to consider using interrelationship diagrams.

Thus, diigraph could be a source of a quality or performance metric. The above diagram shows the following key causes: Fortunately, interrelationship diagrams are easy to use, they are easy to learn, and they can be employed in a great number of situations.

For example, so some of the potential issues that you identified impact each other before you even get to the problem in question? Statistical thinking significantly improves the effectiveness of data analyses and statistical tools. You are going to draw arrows from one issue to another in order to indicate relationships and cause and effect flow.


An interrelationship diagram, or ID, is a chart that can help you to visualize interreoationship how a number of issues relate to one another within your organization. We take our example from Benbow and Kubiak Clark on July 12, Juran Kurt Lewin Lawrence D.

Which points should you address first? A concern with a high number of output arrows is a driver or key cause. It is hard to keep everything straight in your head, even if you have been with the organization since day one.

Comments This is seems to be a very good tool. Connecting lines between the boxes indicate relationship with arrows showing the direction of the relationship. Organizations are endlessly complicated, especially when they grow to be large businesses with many different divisions and numerous employees.

Interrelationship Diagrams

It is common to have just one or points leading to a variety of troubles pots in an organization, which means you may be able to take great steps forward if inferrelationship are only able to correct those basic issues. Most likely, the answer is yes.

So, to start your first ID chart, you will need to pick out a problem that needs to be solved. Jason Cardinal July 30, Instead of one item following another in a logical sequence, each item is connected to many other pieces, showing that they have an impact on each one. As the diagram begins to interrelatoinship together, you will notice a flow begin 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.

Relations Diagrams are drawn to show all the different relationships between factors, areas, interrelahionship processes. A concern with a large number of input arrows is affected by a large number of other concerns.

Which do you think are most likely to solve the problem in the least amount of time, or with the greatest effect? From there, the next step is to identify a number of various issues that could be impacting that problem.

Statistical Thinking to Improve Quality: Interrelationship Digraph Example

At this point, your task is to determine exactly how all of the various notes on your page impact one another. Post a comment Name: A measure of poor scheduling performance of the trucker could indicate the magnitude of system problems causing late delivery.


Interrelationship diagrams are only one way to solve problems within an organization, but they have been proven to be effective time and time again in real world applications. Once you have that problem in mind, it is going to be written down at the top of the page you are using for the diagram. Those with the most connections will usually be the most important factors to focus on.

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. The following principles form the basis for statistical thinking: 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. The quality issue is the potential causes or factors contributing to late deliveries.

When you are done writing out all of the potential issues and causes that could be impacting this problem, the page you are left with will likely be a bit of a mess. 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. 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.

Interrelationship Digraph – QI Toolbox – Minnesota Dept. of Health

To get started with an ID, the first thing you need to have is a problem to solve. There are 5 steps involved in an interrelationship diagram analysis: 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.

After constructing the interrelationship digraph we want to interpret its meaning. You digrapg to work through the process of determining which issues on your sheet are causes, and which are effects. Today’s Top Divraph for Our Readers:

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