Overview of data visualization types
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Summary of Overview of Data Visualization Types
This guide provides an overview of various data visualization types available in ServiceNow, enabling users to effectively display and interpret different data sets. Choosing the appropriate visualization type is crucial as it directly impacts the clarity and usefulness of the data presented.
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Key Features
- Score Visualizations: Display single values or scores, useful for tracking performance against targets. Types include single score, dial, and gauge visualizations.
- Time Series Visualizations: Show data trends over time. Options include line, spline, scatter, column, step, and area visualizations, each suited for different use cases.
- Bar Visualizations: Compare scores across data dimensions using horizontal or vertical bars, with pareto bar visualizations highlighting significant categories.
- Pie and Donut Visualizations: Illustrate the relationship between parts and the whole, effective for comparing a limited number of segments.
- Multidimensional Charts: Display multiple variables, useful for identifying patterns or trends among complex data sets.
- Other Visualizations: Include calendar reports, indicator scorecards, simple lists, and geomaps for diverse data representation needs.
Key Outcomes
By utilizing the appropriate visualization types, ServiceNow customers can enhance their data interpretation, enabling clearer insights and informed decision-making. This empowers organizations to track performance, identify trends, and present data in a visually impactful manner, ultimately leading to improved operational efficiency and strategic planning.
When you create a data visualization, you select the type of chart to display. Each visualization type is suited to show different data.
Score visualizations
This type of data visualization shows a single value or score as a number or percentage. Scores are often used to show how a particular value or metric compares to a target or benchmark. They can be useful for tracking progress or identifying areas for improvement, for example showing a company's or division's overall performance.
| Visualization | Description |
|---|---|
| Single score visualization
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Single-score visualizations display a single aggregate value that is important to your business. |
| Dial visualization
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Dial visualizations show where a single value lies across a range from minimum to maximum expected values. Visually, a "needle" points to the value, and the dial is colored in for values up to the needle. |
| Gauge visualization
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Like dials, gauges show where a single value lies across a range from minimum to maximum expected values. In addition to dial functionality, you can set colored data ranges to help users understand what the value represents. |
Time series visualizations
Time Series visualizations show data over time. All time series visualization types share configuration options. They differ in use case, depending on whether you want to emphasize data trends or the differences between individual data points. For more information about these use cases, see Create a time series visualization in the Visualization Designer.
| Visualization | Description and use case |
|---|---|
| Visualizing trends in a data source | |
| Line |
Shows how one or more values change over time by connecting a series of data points with straight lines. Use a line visualization to emphasize the trend in the data. Consider line visualizations to be the default choice for showing a time series. If you’re unsure of which visualization to use, use a line. |
| Spline |
Shows how one or more values change over time by connecting a series of data points with a fitted curve. The curve emphasizes the trend over individual data points. Spline charts let you take a limited set of known data points and approximate intervening values. |
| Scatter |
Shows unconnected points for values in the Y-axis against time in the X-axis. Usually the trend line is also shown. Use with a spread of data that can’t be usefully connected with a line. |
| Comparing scores in a data source | |
| Column |
Shows changes in data over time by showing values as proportional vertical columns. Use either to visualize changes in one data source or to compare data sources. To compare data sources with a column visualization, either add data sources to the visualization, or place several column visualizations next to each other in a dashboard. |
| Step |
Emphasizes changes in a data source between discreet points in time. Use to show small incremental changes, especially when a line visualization smudges the data. |
| Comparing scores or trends between data sources | |
| Area |
Resembles a line visualization, but the area between the axis and line is emphasized with colors. Use with multiple data sources to highlight the relative contribution that each data source makes to the whole. |
Bar visualizations
Bar visualizations enable you to compare scores across data dimensions. Horizontal and vertical bar visualization types are available. They share all configuration options. In general, use horizontal bars for nominal or categorical data. Use vertical bars for ordinal or sequential data. Use different colors or patterns to distinguish different groups or categories. For more information, see Create a horizontal or vertical bar visualization.
| Visualization | Description |
|---|---|
| Horizontal bar visualization
|
Bar visualizations show categories labeled on one axis and values on the other. Use vertical bars to compare ordinal data, especially when there aren’t too many categories, such as sales numbers grouped into buckets. Use horizontal bar charts with nominal data, such as incident severity or assignment group.Pareto bar visualizations help you identify the most important dimension in a large set of dimensions. Columns show data in descending order. A line shows cumulative percentage. Pareto charts contain both bar and line graphs. The bars display the data in descending order from left to right, and the line graph shows the cumulative totals from each category in the same order. The left Y axis is the record count, and the right Y axis is the cumulative percentage of the total number of records evaluated. |
| Vertical bar visualization
|
|
| Pareto bar visualization |
Pie and Donut visualizations
Pie and donut visualizations show the relationship between parts and the whole of a data set. The segments of these charts should total to 100%. For more information, see Create a pie or donut visualization.
| Visualization | Description |
|---|---|
| Pie visualizations
|
Pie charts are best when comparing 5–7 segments that total 100%, when no two segments have a value within 10% of each other. Donut charts are best for comparing no more than five segments that total 100%, when no two segments have a value within 10% of each other. The center of the donut can be used to show additional information. Semi-donut charts are best for comparing no more than four segments that total 100%, when no two segments have a value within 10% of each other. |
| Donut visualizations
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| Semi-donut visualizations
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Multidimensional charts
Multidimensional visualizations enable you to show multiple variables in a single chart, and it can be useful for showing the relationships between different variables. They are useful when you have a lot of data, and you want to find patterns or trends that might not be immediately obvious. They're also good to use when you want to show the relationship between three or more variables.
| Visualization | Description |
|---|---|
| Pivot table visualization
|
Pivot tables allow for several kinds of aggregation between its fields. You can also filter the data. The columns represent one field or breakdown, while a hierarchy of rows represents multiple other fields or breakdowns. |
| Heatmap visualization
> |
Heatmaps show the relationship between two table fields or indicator breakdowns. The changes in color as you move along the axes reveal patterns in the value of one or both fields/breakdowns. |
| Bubble chart visualization
> |
Bubble charts are circles of different sizes along an x-y axis. The x and y axes represent different numeric fields, such as values or amounts. Use the relative size and position of the circles to compare fields and see their relationships. You can also group the data by a third field, which can be qualitative. The third field is differentiated by color. Use bubble charts to answer binary questions, such as whether two fields have a relationship, and to highlight patterns. |
Other visualizations
Data visualizations can also show calendars, simple lists, indicator scorecards, and location.
| Visualization | Description |
|---|---|
| Calendar report visualization
|
Displays data-driven events in a calendar format. |
| Indicator scorecard
|
The Indicator scorecard component enables you to visualize and compare data between multiple Performance Analytics indicators. |
| Simple list
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Shows a list of table records. Has a reduced set of features compared to a List component, allowing the simple list to fit in small spaces. |
| Geomap |
Displays data by country, state, or city. Users can use table data that contains location information to visualize in the chart. |