Using a Question Board in Team Meetings

The question board helps with this because it provides a place for people to focus their discussions. It also helps the team stand up and participate physically and come up with new ideas.

Many of your questions will be interconnected. Often, you’ll have essential questions that are connected to several closed, nonessential questions. If it’s on the wall, you can use string to show these connections. If it’s on a whiteboard, you can just draw different colored lines. This will help your team stay organized and even prioritize their highest value questions.

The question board will invite other people outside your team to participate. You might want to leave a stack of green sticky notes next to the board. Leave a marker and a small note that invites other people to add their own questions. Sometimes these questions from outside the team tell the most interesting stories.

Create Question Trees

Your question board will be a key part of communicating your data science story. It should have the questions that your team is working to address. It may also have little bits of data that suggest some answers. A good question board encourages other people to participate and tempts people to be part of your shared story.

One of the challenges of a question board is to have it filled with questions and keeping it well organized. Since it’s designed for a group discussion, you want everyone to be able to share the same information. It shouldn’t have several different groups of one person’s notes. If each group only has one person’s ideas, that one person will be the only one to understand its meaning.

Instead, all your questions should be organized using the same system. One of the best ways to do this is by creating question trees. A question tree is a group of sticky notes all related to one essential question. You’ll want to have the essential questions as the most attention grabbing color. Usually this is either red or pink.

Let’s imagine a question board for our running shoe website. One question that your team came up with is, “Can our website help encourage non-runners become runners?” If you’re the research lead for the team, you want to put this essential question on a red sticky at the very top of the board.

Underneath that essential question, you can start adding other questions. It could be another essential question such as, “What makes people run?” It could also be a nonessential question like, “Do non-runners shop on our site?” Since this is a closed question, you could put a little data sticky next to the yellow question sticky. Maybe something like, “Data suggest that 65% of our customers don’t run in a given week.” You could use a pie chart like the one shown below to illustrate this point.

Assume that this generated data comes from a survey that the company did on its customers. The question asked, “How many times, on average, do you run per week?” When you look at the data, you see that about 65% of the respondents don't run at all. 55% of the respondents run more than once per week.

Someone looking at the question tree should be able to follow the thought process of the team. She should see that the lower branches of questions started with one open-ended essential question (“Can our website help encourage non-runners become runners?”) and see the team addressing that question. She should be able to follow it all the way down to different branches.

Let’s say that the question, “What makes people run?”, branches off in its own direction. Underneath that question is another question that says, “Do they run to relieve stress?” Underneath that is another question that says, “Can non-runners who are stressed see the benefits of running?”'

With the question tree, the research lead now has a report to show progress to the rest of the organization. She could show that the data science team is working on several high-value questions simultaneously. It shouldn’t be too difficult to see how gaining insight into creating customers might increase revenue.

The question trees help the research lead connect the team’s work to real business value. A question board should have several questions trees. At the very top of the board, there should be several red or pink essential questions. Each of these should branch down like an upside down tree into several other questions. Be sure to use different color sticky notes as discussed previously (essential questions red or pink and nonessential questions yellow). Sometimes open questions will branch off into different question trees and you should end closed questions with little sticky notes that show the data.

Like any tree you’re going to want to prune your questions. This is one of the key responsibilities of the research lead. She needs to make sure that your questions lead to real business value. If he doesn’t think your questions will lead to insights, he might want to pull them off the question board so the data analyst doesn’t start searching for results.

Note: The research lead usually removes questions as part of the team’s question meetings. You don’t want your research lead pulling questions off the board without communicating the change to the team.

One of the key things about question trees is that they actually mirror how most teams come up with new questions. Remember that data science is using the scientific method to explore your data, which means that most of your data science will be empirical. Your team will ask a few questions, gather the data, and then they will react to that data and ask a series of questions. When you use a question tree, it reflects what the team has learned. At the same time, it shows the rest the organization your progress.

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