Every dashboard you create is designed to do more than just communicate numbers. It’s a tool with a purpose. That purpose might be to increase revenue, decrease costs, or add value to your product. When creating dashboards, I like to keep that purpose forefront in my mind.

A powerful addition you can apply to your dashboards right now is to lead with questions. When you change the title of your dashboard into a question, you turn your audience from passive viewers to active viewers. They aren’t just reviewing numbers, they are now trying to answer a question.

It’s easy to be more complex than necessary. It’s hard to be simple and succinct. As Mark Twain said, “I didn’t have time to write a short letter, so I wrote a long one instead.” The same is true in the world of data analysis.

Most people just want to know: “based on what’s happened (data), what should I do next?”

One of the things I found most confusing when I first started using Tableau was trying to figure out what all the different files types do. It’s not exaggerating to say that I lost sleep over it. I want to provide you with a brief overview of the primary file types you’ll encounter and their primary uses.

One of my favorite additions to a dashboard are summary tiles. They’re a great way to quickly communicate a few quick, important data points. In this write-up, I’ll share some of my favorite techniques for building them and making them look crisp. See below for an example of summary tiles I created recently.

I recently got an email from a former student explaining that they were trying to recreate something similar to the image below in Tableau.

The trouble she was running into was recreating the total header called “Planned Cost by Perf”. If you try to use a measure as a discrete header, you end up with the value summed for each partition. Here is an example using Superstore data:

 

When calculating growth rates from one date period to another, it’s important to compare apples to apples. For instance, when building a graph in Tableau to compare quarterly sunscreen sales in Seattle, I probably wouldn’t want to compare Q3 Sales (July - September) to Q2 Sales (April - June) because there will be more sales in Q3. The product has a cyclical sales cycle. Instead, I would rather compare Q3 Sales of this year to Q3 Sales of last year to more accurately understand growth rates.