Sankey charts are a powerful data visualization tool that can be used to display the flow of data in a given system. They are particularly useful when trying to identify opportunities for optimization or for understanding the interconnections between different parts of a system. In this article, we will explore how to create Sankey charts and give some examples of their application in real-world scenarios.

What is a Sankey Chart?

Sankey charts are a type of flowchart that are specifically designed to visualize the flow of data through a system. They are named after their creator, Dr. Process Dynamics, and are also sometimes referred to as “data flow charts” or “mass flow charts.” Sankey charts are particularly useful when trying to understand the data flow through a system, as they allow you to easily see the connections between different data sources and how data is transformed as it flows through the system.

How to Create a Sankey Chart

Creating a Sankey chart is relatively easy, as there are a number of software tools available that make it easy to create and edit Sankey charts. Some popular tools that can be used to create Sankey charts include:

1. Microsoft Visio: Visio is a powerful business software suite that includes a range of charting and visualization tools, including Sankey charts. To create a Sankey chart in Visio, simply add a shape for each data source, link the shapes with arrows to represent the flow of data, and customize the chart as desired.
2. Lucidchart: Lucidchart is a web-based charting and collaboration tool that supports a range of diagramming tools, including Sankey charts. To create a Sankey chart in Lucidchart, simply add shapes for each data source, link the shapes with arrows to represent the flow of data, and customize the chart as desired.
3. SmartDraw: SmartDraw is a web-based diagramming tool that includes a range of charting and visualization options, including Sankey charts. To create a Sankey chart in SmartDraw, simply add shapes for each data source, link the shapes with arrows to represent the flow of data, and customize the chart as desired.

Some tips for creating effective Sankey charts include:

1. Use clear and concise labeling: It is important to use clear and concise labeling for each data source and arrow in the chart. This will make it easier to understand the flow of data through the system.
2. Make the chart easy to read: It is important to include a clear title and to make the chart easy to read, especially if it is a large or complex chart.
3. Customize the chart as needed: There are a range of chart customization options available in most Sankey charting tools, so you can tailor the chart to your specific needs. This may include adjusting the colors, shapes, or labels.

Applications of Sankey Charts

Sankey charts are a powerful data visualization tool that can be used in a wide range of scenarios. Some common applications for Sankey charts include:

1. Identifying opportunities for optimization: Sankey charts can be used to identify opportunities for optimization within a system. For example, you can use a Sankey chart to visualize the flow of data through a supply chain and identify bottlenecks or areas where costs can be reduced.
2. Understanding the interconnections between different parts of a system: Sankey charts can be used to understand the interconnections between different parts of a system. For example, you can use a Sankey chart to visualize the flow of data through a website and understand how different pages or functions are connected.
3. Analyzing the impact of changes on a system: Sankey charts can be used to understand the impact of changes on a system. For example, you can use

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