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Business Reporting, Visual Analytics & Dashboard (Part 2) & Story…
Business Reporting, Visual Analytics & Dashboard (Part 2) & Story Telling
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Gestalt Principles of Visual Perception
6 Principles for grouping, separating, emphasizing data:
- Principle of Proximity
- The Principle of Proximity states that we perceive
objects that are located near one another as belonging to the same group
- Principle of Similarity
- The Principle of Similarity states that we perceive
objects share some visual attribute as belonging to the same group
- Principle of enclosure
- The Principle of Enclosure states that objects that are enclosed by a visible border are perceived as belonging together
- Principle of Closure
- The principle of closure asserts that humans perceive open structures as closed, complete or regular when we can reasonably do so
- Principle of Continuity
- The principle of continuity asserts that humans
perceive objects as belonging together if they are aligned with one another
- Principle of connection
- States that we perceive objects hat are connected in some way as belonging to the same group.
Grouping produced by connection is
stronger than that produced by proximity or similarity (colour, size and shape)
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Organise information to support its meaning and use
- Organise groups according to business functions, entities and use
- Co‐locate items that belong to the same group
- Delineate groups using the least visible means
- Support meaningful comparisons
- Discourage meaningless comparisons
- Maintain consistency for quick and accurate interpretation
- Make the viewing experience aesthetically pleasing
- Design for use as a launch pad
- Test your design for usability
Support meaningful comparison
- Combining items in a single table or graph (if
appropriate)
- Placing items close to one another
- Linking items in different groups using a common colour
- Including comparative values whenever useful for clarity and efficiency:
- Ratios
- Percentages
- Actual variances
Maintain consistency for quick and accurate
interpretation
- Differences in appearance prompt us to search,
consciously or unconsciously, for the significance of
those differences
- Maintain consistency not only in the visual appearance
of the display media but also in choice of display
media
- Never vary the means of display for the sake of variety.
Always select the medium that best communicates the data and its message.
Use Vivid and Subtle Colours Appropriately
- Attention Grabbing Colours
- Calm colours that allow viewers to peruse dashboard with an open mind
- Considerations for the colour blind
Design for use as a launch pad and testing
- Dashboard serves as a launch pad to additional, complementary information
- Dashboards should be designed for interaction. Common types of dashboard interaction are:
- Drilling down into the details
- Slicing the data to narrow the field of focus
- Principles for incorporating interaction:
- Allow the viewer to initiate the launch by clicking the data itself
- Hover over the data point along a graph and have the value pop up temporarily as text
- Use consistent launch actions to avoid confusion
- Test your design for usability
- Present users with a single prototype of the most effective design you can create.
- Show the prototype to them populated with real data
Delineate groups using the least visible means
- Use of white space
- Use of subtle borders (de-emphasize non-data pixels)