Your challenge this week is to create a Risk Matrix with some supporting visuals. We decided to keep the project management theme going this week. If you did not do last week’s challenge, I highly recommend you checkout Kerry’s Gantt Chart challenge, here.
For this challenge, I looked at a lot of possible ways to create a Risk Matrix but none of them were as clean and simple as utilizing Synoptic Panel. If you remember, I utilized this tool in week 4 to create a Hex Map. This method of creating a Risk Matrix was just too good to not use it, plus you get to see how you can use custom visuals in Synoptic Panel.
The dataset we are using is an open dataset from with City of Phoenix where we have open access to claims made against the city.
In this dataset, there is a row for each claim but we will be analyzing the data at the cause level. Below are the definitions for how the scores should be calculated.
- Claim Risk by Cause
- High (3) – More than 10 claims
- Medium (2) – More than 2 claims
- Low (1) – More than 0 claims
- Cost Risk (note – these numbers are cost per claim)
- High (3) – More than $2,000 per claim
- Medium (2) – More than $500 per claim
- Low (1) – More than $0 per claim
BUILD THE DATA MODEL (OPTIONAL)
- Download the following files from data.world or from the City of Phoenix website.
- Append the Queries
- Filter for Claim Status = “F” and for 2021 claims
- Group by Causes to get Cost, Claims, and Cost Per Claim at Cause granularity
- Create a custom table (see original format below)
Claim Risk 1 2 3 Cost Risk 1 Low Low Medium 2 Low Medium High 3 Medium High High
- Transform custom table into the following fields
- Cost Risk
- Claim Risk
- Overall Risk (Low, Medium, High)
- Risk Code (11,12,13,etc – Claim Risk & Cost Risk Concatenation)
- LEFT JOIN the aggregated cause table to the custom risk table
- NOTE – Joining in this order provides null values for cost and claim risks that have no causes associated with them
LET’S BUILD THE RISK MATRIX!!!
- If you prefer to start with a complete data model, please download the Power BI Desktop (.pbix) file.
- Download the .png document included in the data.world link, here. You can also build your own if you are feeling ambitious.
- Go to synoptic.design and upload the .png file.
- Name each container according to a numeric code that can be joined with the data (HINT: it is a concatenation of the claim risk and the cost risk (11,12,13,21,etc))
- Export to PowerBI – Save the .SVG file
- Go to Power BI and Import the custom visual, “Synoptic Panel by OKViz”.
- Start by dragging in your numeric risk code in the category field and the distinct count of causes into the measure.
- Figure out how to create states from the states measure to assign a color coding to indicate the overall risk. Make sure to include all relevant information in the tooltips.
- HINT – Lookout for where the risk matrix has no valid causes associated with it (Distinct Count of Cause will show 1 instead of 0 since it is counting null)
- Build a bar chart and scatter plot to interact with the risk matrix
- Perform final formatting. Match my format or put your own spin on it.
This week you can find the data here. You have the option to build the data model from scratch or start with the completed data model.
After you finish your workout, share on Twitter using the hashtags #WOW2022 and #PowerBI, and tag @JSBaucke, @MMarie, @shan_gsd, @KerryKolosko, and @NerdyWithData. Also make sure to fill out the Submission Tracker so that we can count you as a participant this week in order to track our participation throughout the year.