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Tableaubi_tool~8 mins

Why performance ensures usability in Tableau - Dashboard Impact

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Dashboard Mode - Why performance ensures usability
Dashboard Goal

This dashboard answers: How does performance impact usability in a sales dashboard?

Sample Data
PageLoad Time (seconds)User Satisfaction (1-5)Sales (USD)
Home2.5410000
Product3.838000
Checkout1.2512000
Reports5.026000
Dashboard2.0411000
Dashboard Components
  • KPI Card: Average Load Time
    Formula: AVG([Load Time (seconds)]) = (2.5 + 3.8 + 1.2 + 5.0 + 2.0) / 5 = 2.9 seconds
  • KPI Card: Average User Satisfaction
    Formula: AVG([User Satisfaction (1-5)]) = (4 + 3 + 5 + 2 + 4) / 5 = 3.6
  • Bar Chart: Load Time by Page
    Shows load time for each page to identify slow pages.
  • Bar Chart: User Satisfaction by Page
    Shows user satisfaction scores per page.
  • Scatter Plot: Load Time vs User Satisfaction
    Plots each page's load time against user satisfaction to show correlation.
  • Table: Sales by Page
    Shows sales figures to relate performance and usability to business impact.
Dashboard Layout
+----------------------+-----------------------------+
| Average Load Time KPI | Average User Satisfaction KPI |
+----------------------+-----------------------------+
| Load Time by Page Bar Chart               |
+------------------------------------------+
| User Satisfaction by Page Bar Chart       |
+------------------------------------------+
| Scatter Plot: Load Time vs User Satisfaction |
+------------------------------------------+
| Sales by Page Table                       |
+------------------------------------------+
Interactivity

A page filter allows selecting one or multiple pages. When a page is selected, all charts and KPIs update to show data only for those pages. This helps users focus on performance and usability for specific pages.

Self Check

If you add a filter to select only the "Checkout" page, which components update and what values do they show?

  • Average Load Time KPI: 1.2 seconds
  • Average User Satisfaction KPI: 5
  • Load Time by Page Bar Chart: shows only Checkout with 1.2 seconds
  • User Satisfaction by Page Bar Chart: shows only Checkout with score 5
  • Scatter Plot: single point at (1.2, 5)
  • Sales by Page Table: shows Checkout sales 12000 USD
Key Result
Dashboard shows how page load time affects user satisfaction and sales, highlighting performance's role in usability.