Dashboard Design
Dashboard Design Principles
Dashboard Design Framework
Key components and relationships in effective dashboard design
Legend
Components
Connection Types
Dashboard Purpose and Types
Dashboard Types
Different dashboard types serve distinct business purposes:
- Operational dashboards: Monitor daily activities and immediate action items
- Strategic dashboards: Track progress toward long-term goals and strategies
- Analytical dashboards: Enable exploratory analysis to discover insights
- Tactical dashboards: Support mid-level management decision-making
- Executive dashboards: Provide high-level overview for leadership
Dashboard Types
Technical implementation considerations by dashboard type:
- Operational dashboards: real-time data connections and alerting
- Strategic dashboards: trend analysis with historical data models
- Analytical dashboards: deep drill-down capabilities and large datasets
- Tactical dashboards: interactive filtering and mid-level metrics
- Executive dashboards: simplified KPIs with mobile optimization
Dashboard Purpose Statement Template
Before designing any dashboard, create a clear purpose statement:
This dashboard helps [AUDIENCE] to [ACTION] by showing [METRICS]
over [TIME PERIOD] at [GRANULARITY] level, enabling decisions about [PROCESS].
Example:
This dashboard helps regional sales managers to allocate resources by showing
sales performance over the current quarter at the product category level,
enabling decisions about inventory management and sales team deployment.
Information Visualization Principles
Visual Encoding Best Practices
Effective visual encoding is essential for business communication:
- Reduces cognitive load for decision-makers consuming information
- Highlights key insights that might be missed in tables of numbers
- Makes complex relationships and patterns immediately apparent
- Increases retention of important metrics and trends
- Supports faster, more accurate decision-making
Visual Encoding Best Practices
Technical implementation of visual encoding:
- Match data types to appropriate chart types (categorical, ordinal, quantitative)
- Use appropriate color scales (sequential, diverging, categorical)
- Apply gestalt principles for visual grouping
- Implement proper axis scaling and numeric formatting
- Configure effective legends and tooltips
Chart Selection Guide
Data Relationship | Recommended Charts | When to Use |
---|---|---|
Comparison | Bar/Column charts, Bullet charts | Compare values across categories |
Composition | Pie charts, Stacked bar charts, Treemaps | Show parts of a whole |
Distribution | Histograms, Box plots, Scatter plots | Understand data spread and outliers |
Trend | Line charts, Area charts, Sparklines | Display changes over time |
Correlation | Scatter plots, Bubble charts, Heatmaps | Show relationships between variables |
Geographic | Maps, Choropleth maps, Cartograms | Display location-based data |
Hierarchical | Treemaps, Sunburst diagrams, Network graphs | Show nested relationships |
Ranking | Ordered bar charts, Bump charts | Compare items by position |
Dashboard Layout and Structure
Dashboard Layout Patterns
Common structural patterns for organizing dashboard content
Legend
Components
Connection Types
Layout Best Practices
-
Consistent Grid Structure
- Use a consistent grid system with logical spacing
- Align elements to create visual harmony
- Group related information together
-
Visual Hierarchy
- Place most important information in the upper left
- Use size and color to emphasize key metrics
- Create clear visual pathways through information
-
White Space
- Include adequate padding between elements
- Avoid cluttered layouts that overwhelm users
- Use white space to create logical groupings
-
Responsive Design
- Ensure dashboards function across device sizes
- Implement fluid layouts when possible
- Consider mobile-first designs for executive dashboards
Visualization Component Selection
KPI Cards and Metrics
KPI cards translate raw metrics into actionable business insights:
- Make performance against goals immediately visible
- Highlight exceptional conditions requiring attention
- Provide context to raw numbers through comparisons
- Create accountability by associating metrics with objectives
- Support the "at a glance" needs of busy decision makers
KPI Cards and Metrics
Technical implementation of KPI components:
- Use calculated fields for comparison to targets and baselines
- Implement conditional formatting for visual cues
- Create period-over-period calculations in the data model
- Use custom tooltips for contextual information
- Implement parameterized targets and dynamic benchmarks
Effective KPI Card Design
function KpiCard({
title,
value,
previousValue,
target,
format = 'number',
icon
}) {
const percentChange = ((value - previousValue) / previousValue) * 100;
const percentToTarget = ((value - target) / target) * 100;
const statusColor = percentToTarget >= 0 ? '#34c759' : '#ff3b30';
const trendColor = percentChange >= 0 ? '#34c759' : '#ff3b30';
return (
<div className="kpi-card">
<div className="kpi-header">
<h3>{title}</h3>
{icon && <span className="kpi-icon">{icon}</span>}
</div>
<div className="kpi-value">
{formatValue(value, format)}
</div>
<div className="kpi-meta">
<div className="kpi-trend" style={{ color: trendColor }}>
{percentChange >= 0 ? '↑' : '↓'} {Math.abs(percentChange).toFixed(1)}%
<span className="trend-label">vs. previous</span>
</div>
<div className="kpi-target" style={{ color: statusColor }}>
{percentToTarget >= 0 ? '↑' : '↓'} {Math.abs(percentToTarget).toFixed(1)}%
<span className="target-label">vs. target</span>
</div>
</div>
</div>
);
}
Chart Design Principles
Effective chart design principles that drive business value:
- Focus attention on the data and insights, not decoration
- Ensure accurate interpretation of trends and relationships
- Reduce time required to extract meaning from visualizations
- Present data in familiar formats for your specific audience
- Make context and comparisons clear at first glance
Chart Design Principles
Technical chart implementation best practices:
- Remove chart junk (unnecessary gridlines, borders, backgrounds)
- Use consistent axis ranges and scales across related charts
- Implement direct labeling instead of legends when possible
- Set appropriate number formats with right level of precision
- Create custom tooltips with contextual information
Interactive Elements and Filtering
Dashboard Interactivity
Interactive dashboards provide significant business advantages:
- Enable self-service exploration without requiring new dashboards
- Accommodate different user questions and perspectives
- Support the natural analytical workflow from overview to detail
- Increase user engagement and dashboard adoption
- Reduce the time from question to insight
Dashboard Interactivity
Technical implementation of interactive features:
- Cross-filtering architecture with action filters
- Parameter controls for dynamic analysis
- Drill-down hierarchies with level awareness
- Custom navigation actions and tooltips
- URL actions for integration with external systems
Effective Filter Design
-
Global Filters
- Place most common filters prominently at the top
- Use dropdown menus for categorical filters with many options
- Implement date range controls for time-based analysis
- Show clear visual indication of active filters
-
Local Filters
- Place specific filters near the visualizations they affect
- Use visual filter controls when appropriate (e.g., sliders)
- Provide quick filter reset options
-
Cross-Filtering
- Allow clicking on chart elements to filter related visuals
- Indicate which visualizations are affected by cross-filtering
- Provide clear visual feedback when filters are applied
Color Usage in Dashboards
Color Strategy
Strategic use of color delivers key business benefits:
- Highlights areas requiring immediate attention or action
- Creates meaningful associations between related data points
- Reinforces brand identity in customer-facing analytics
- Improves comprehension speed for complex information
- Ensures inclusive access to insights for all team members
Color Strategy
Technical implementation of dashboard color schemes:
- Configure categorical palettes with appropriate color distances
- Implement sequential and diverging color scales correctly
- Use transparency for overlapping elements
- Apply conditional formatting with meaningful thresholds
- Ensure accessibility with color blindness testing
Color Guidelines
-
Functional Color Use
- Use color to convey meaning, not for decoration
- Limit palette to 5-7 colors for categorical data
- Use sequential color scales for quantitative data
- Apply diverging scales for values with meaningful midpoints
-
Color for Highlighting
- Use contrasting colors for key metrics or exceptions
- Apply consistent color meaning across all dashboards
- Avoid using too many highlight colors which dilutes effect
-
Brand Alignment
- Incorporate company color scheme when appropriate
- Ensure brand colors work functionally within visualizations
- Create custom themed templates for consistency
-
Accessibility
- Ensure sufficient contrast between text and background
- Test dashboards with colorblindness simulators
- Use patterns or shapes as secondary encoding when necessary
Performance Optimization
Dashboard Performance
Dashboard performance directly impacts business value:
- Reduces wait time for critical decision-making information
- Increases user adoption and engagement with analytics
- Lowers infrastructure costs through efficient resource usage
- Enables real-time and operational use cases
- Improves user satisfaction and analytics ROI
Dashboard Performance
Technical performance optimization techniques:
- Implement efficient query design with appropriate aggregations
- Use extract data sources with optimized data structures
- Apply filters at the database level rather than in-memory
- Minimize the number of queries per dashboard
- Configure appropriate caching policies
Performance Best Practices by Platform
Tableau Performance Tips
- Use extracts instead of live connections when possible
- Apply context filters to reduce data processed
- Create hierarchies for efficient drill-down
- Use parameter actions instead of filter actions
- Minimize the number of worksheets per dashboard
Power BI Performance Tips
- Implement star schema modeling with proper relationships
- Use appropriate DAX measures with context transition awareness
- Apply query folding in Power Query transformations
- Enable incremental refresh for large datasets
- Use aggregations for large tables
Looker Performance Tips
- Create aggregate awareness PDTs
- Implement persistent derived tables for complex calculations
- Use effective datagroups for caching strategy
- Apply symmetric aggregates to prevent fan-out
- Avoid unnecessary joins in LookML models
Platform-Specific Dashboard Development
BI Platform Comparison
Key capabilities and design approaches across major BI platforms
Legend
Components
Connection Types
Platform Selection Considerations
When choosing a BI platform for dashboarding, consider:
-
Audience Technical Proficiency
- Power users vs. casual consumers
- Self-service requirements
- Mobile access needs
-
Data Infrastructure
- Connection types and performance
- Data volume and refresh frequency
- Security and governance requirements
-
Visualization Requirements
- Custom visualization needs
- Interactive capabilities required
- Embedding and sharing needs
-
Resource Availability
- Development team skills and availability
- IT support and infrastructure
- Budget constraints
Dashboard Documentation and Rollout
Dashboard Documentation
Effective documentation delivers key business benefits:
- Ensures consistent interpretation of metrics across teams
- Accelerates onboarding of new dashboard users
- Reduces support requests through self-service help
- Creates transparency around data sources and calculations
- Supports governance and compliance requirements
Dashboard Documentation
Technical documentation implementation:
- Inline documentation with tooltip explanations
- Data dictionary integration with field definitions
- Version control and change management
- Query and calculation documentation
- Performance benchmarking and testing results
Dashboard Release Checklist
✅ Purpose and audience clearly defined
✅ Metrics and calculations verified
✅ Filters and interactions tested
✅ Performance optimized for target audience
✅ Mobile/responsive design validated
✅ Documentation and tooltips complete
✅ Accessibility guidelines followed
✅ User testing feedback incorporated
✅ Data refreshes configured and tested
✅ Security and permissions set correctly
Additional Resources
- Tableau Visual Best Practices
- Power BI Dashboard Design Guidelines
- Information Dashboard Design by Stephen Few
- Storytelling with Data by Cole Nussbaumer Knaflic
- Data Visualization Society