Sankey charts are a powerful visualization tool that can help you understand the flow of data in your organization and identify areas where processes can be optimized. In this article, we will guide you through the process of creating a Sankey chart and explore some of the many applications of this type of chart.
What is a Sankey chart?
A Sankey chart is a flowchart that shows the direction and the relative magnitude of the flow of a particular commodity or resource through a system. It is also known as a resource flow chart. The chart is named after a Dutch engineer named Jan de Keyser, who developed the technique in the 1930s.
The basic structure of a Sankey chart consists of a central flow network, surrounded by a set of pipes that indicate the flow of the commodity or resource. Each pipe is connected to a node, which represents a process or an object in the system. The size of the pipe and the position of the nodes can be used to represent the magnitude of the flow and the relative importance of the process or object.
Creating a Sankey chart
Sankey charts can be created in many different software applications. Some of the most popular include Microsoft Visio, Lucidchart, and SmartDraw. These tools provide a range of templates and shapes that can be used to create a Sankey chart. In addition, they often include pre-defined data connectors that allow you to easily import data from spreadsheets or other sources.
To create a Sankey chart, start by setting the central flow network. This can be done by adding a central shape, such as a rectangle, to represent the system or process that is being analyzed. From there, you can add a series of pipes to represent the flow of the commodity or resource through the system. Each pipe should indicate the direction of the flow and the source and destination of the flow.
Next, add the nodes to the chart. These can represent processes, objects, or other elements in the system that are relevant to the flow of the commodity or resource. The size and position of the nodes can be used to indicate the magnitude of the flow and the relative importance of the process or object.
Finally, use the data connectors to link the nodes and pipes to your data source. This will allow you to see the flow of the commodity or resource in real-time, and make adjustments to the chart as needed.
Applications of Sankey charts
Sankey charts are a flexible and versatile visualization tool that can be used to understand and optimize a wide range of processes and systems. Some of the most common applications of Sankey charts include:
- Process mapping: Sankey charts can be used to map out the flow of a process or system, from start to finish. This can help identify bottlenecks, unnecessary steps, and opportunities for improvement.
- Resource flow analysis: Sankey charts can also be used to analyze the flow of a particular resource, such as money, materials, or personnel, through a system. This can help identify areas where resources are being wasted, or where additional resources are needed.
- Supply chain management: Sankey charts can be used to visualize the flow of a product or service through the supply chain, from suppliers to customers. This can help identify inefficiencies and opportunities for improvement.
- Environmental impact analysis: Sankey charts can be used to analyze the flow of pollutants or other resources through an environmentally sensitive system, such as a water supply. This can help identify areas where waste is being generated, or where conservation measures can be implemented.
Conclusion
In conclusion, Sankey charts are a powerful visualization tool that can help you understand and optimize the flow of data, resources, and other elements in your organization. By using a Sankey chart, you can identify areas where processes can be improved, and make data-driven decisions to help your organization achieve its goals.
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