Why data connections are the starting point in Tableau - Dashboard Impact

Dashboard Mode - Why data connections are the starting point

Goal

Understand why connecting to data is the first step in building a Tableau dashboard.

Sample Data

Order ID	Region	Product	Sales	Quantity
1001	East	Chair	250	5
1002	West	Desk	450	3
1003	East	Chair	150	2
1004	South	Table	300	4
1005	West	Desk	500	6
1006	North	Chair	200	3

Dashboard Components

• KPI Card: Total Sales
  Formula: SUM([Sales])
  Result: 1850
• Bar Chart: Sales by Region
  Formula: SUM([Sales]) grouped by [Region]
  Results: East=400, West=950, South=300, North=200
• Table: Detailed Sales Data
  Shows all columns from sample data

Dashboard Layout

+----------------------+----------------------+
|      KPI Card        |     Bar Chart        |
|   Total Sales: 1850  |  Sales by Region     |
+----------------------+----------------------+
|               Detailed Sales Data             |
+----------------------------------------------+

Interactivity

Adding a Region filter updates the Bar Chart and the Detailed Sales Data table to show only selected regions. The KPI Card updates total sales accordingly.

Self Check

If you add a filter for Region = 'East', which components update and what sales total will the KPI Card show?

Answer: The Bar Chart and Detailed Sales Data table update to show only East region data. The KPI Card updates to show total sales of 400.

Key Result

A simple Tableau dashboard showing total sales, sales by region, and detailed sales data to illustrate why connecting to data is the first step.