Title: Sankey charts, also known as flow diagrams, are a type of chart that are used to illustrate the flow of information, resources or energy through a system. They are often used in engineering, business management, and science to visualize the flow of information or resources between different components of a system.
Before we dive into creating and applying Sankey charts, let us first understand the basics of it. A Sankey chart consists of two main components; the head and the body. The head represents the sources and sinks of the flow, while the body represents the actual flow between these sources and sinks. The Sankey chart is made up of lines connecting the sources and sinks, and the thickness of the lines represents the flow rate of the flow.
In this article, we will be focusing on the application of Sankey charts. There are several ways to apply Sankey charts; whether for visualizing the flow of information, resources or energy. However, we will be focusing on the flow of information, since it is a more common use for Sankey charts. For the sake of this article, let us assume that we are using a Sankey chart to visualize the flow of information between departments in an organization. In this type of Sankey chart, we would have two main sources of information, which are incoming information from external sources (e.g. data from clients, suppliers) and outgoing information to external sources (e.g. data generated internally in the organization), and two main sinks of information, which are internal and external information management systems. Therefore, there would be lines connecting these sources and sinks.
To apply Sankey charts, we first have to decide on the sources and sinks that we want to include in our Sankey chart. We can do this by creating a flow diagram of the information flow in our organization. This should include all the sources and sinks of information that we want to include in our chart. Once we have identified the sources and sinks, we can draw the lines connecting these sources and sinks. The thickness of the lines will show the flow rate of the flow.
Another important element in a Sankey chart is the color coding. Sankey charts can be color-coded to show the direction of the flow from one source to another. This is done by assigning a color to each source and sink. In this case, we would have an incoming line in green, and an outgoing line in red. This color coding is done to indicate the flow direction from the incoming line to the outgoing line.
Another important element in a Sankey chart is the labeling. Sankey charts can be labeled with both the flow direction and the flow rate. For example, we can label the incoming lines in green color and the flowing rate as “incoming”. Similarly, we can label the outgoing lines in red color and the flowing rate as “outgoing”.
In conclusion, Sankey charts can be a useful tool to visualize the flow of information, resources or energy, especially in engineering, business management, and science. By applying it correctly, we can gain a better understanding of the flow of information in our organization.

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