Sankey charts, also known as force-drawing diagrams, are mathematical diagrams that represent multiple overlapping flows in a network. They are used to illustrate the sequential flow of resources or information in a system. Sankey charts use a flow diagram and a series of symbols to represent the different sources, channels, or sinks.
Sankey charts have applications in various fields such as engineering, business, and social sciences. This article explores the creation and application of Sankey charts as a visually compelling approach to analyzing flow diagrams.
A Sankey chart consists of a top-level diagram with a series of symbols representing the different flow sources, channels, or sinks. The flow symbols can represent the actual flows between the different points in the network, or they could represent the visual representation of the direction of the flow. The arrows or symbols that emanate from the flow sources show where the flow is coming from. Conversely, the arrows that point to the flow sinks show how the flow is being absorbed or consumed.
Sankey charts are especially useful when you have to analyze intricate flow patterns within a network of different elements. Sankey charts can accurately depict how different flow elements (such as people, materials, or information) are coordinated in a system.
One of the most significant advantages of using Sankey charts is their ability to visually represent the flow processes and structures within a system. This representation facilitates better understanding and analysis of the network’s flow, which can be relevant in fields such as engineering, business, and social sciences.
Sankey charts are also useful for visualizing complex network architectures. In technical writing, they can be used to show the flow of information between technologies in a system or organization. They can also be used to portray the flow of data or resources in a process flow diagram.
Sankey charts can be used to illustrate the flow of information or resources in a network of people or processes, such as a healthcare system or a supply chain. The chart shows the inputs and outputs for each of the process steps or for each person’s role in the network. This visual representation makes it easier to notice which elements flow towards another, which elements are the sources or outputs, and which elements are the sinks or consumers.
To create an effective Sankey chart, you need to know what you are trying to represent. You need to have a clear understanding of how the flow occurs and what you want to depict in the chart. You also need to decide which symbols to use for the flow sources, channels, or sinks.
Once you have a clear understanding of the network architecture and plan to represent it visually, you can start to draw the Sankey chart. The process includes determining the flow sources, defining the flow channels with arrows, and identifying the flow sinks. You may also need to adjust the scales and symbols to ensure that the flow is accurately depicted.
Sankey charts are a useful visual aid for explaining and understanding flow systems. They help to present data in an engaging and creative way, making it easier for stakeholders to visualize the flow of resources and processes within a system. Sankey charts are a powerful tool for analyzing flow diagrams and their applications are numerous, making them an essential part of any professional toolbox.
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