The analytics in Kanbanize work per board. Click the Analytics icon on the top of each board to access the Analytics page.
The Analytics screen presents 5 categories: Cycle Time, Throughput, WIP, Flow, Forecasting, each available as a tab item on the page. Click on a tab button to view the charts for each of the respective metrics. The Heat Map belongs to the Cycle time category.
Introduction to Heat Map
The Heat Map is a graphical representation of data (in Kanbanize: cycle time) on a matrix that uses various shades of different colors in order to help distinguish the collected data in each cell of the matrix.
The Heat map shows you where the most time gets accumulated according to the workflow stages and the topic that you have selected. The red color always stands for higher time values.
- On the "x" axis is the actual workflow of the board that includes its respective columns.
- On the "y" axis, you can choose different topics for example: type, assignee, priority, etc.
How to set up the Heat Map?
From the left side of the panel, you can control which data you can see on the chart. You can add single or multiple workflows of the selected board.
In addition, you can apply other filters. For example, you may want to see only cards with high priority or cards that are of a certain size.
Note: To further filter the data, please check the Item filter control in the most right panel.
Once you have defined the workflow, you should select a topic. For example priority. 
What's that telling us?
According to the topic you select, you see in which part of the workflow, the cards (for example by priority) take the most time. The graph accumulates the total cycle time that the cards spend in each of your workflow stages.
If there is an intersection on the Heat map colored in red, it signals that the cycle time of the tasks there is longer and that stage of your process needs attention. This visualization helps you easily find out the slowest part of the workflow and it is a good way to visualize bottlenecks.
In the example, below it seems that the cards with average priority take the most time. If you click on any of the intersections, the system provides a list with all cards that have passed through that stage. 
Controls for this chart - customize your view
You can use the controls to change the "Heat Map" view as well as to apply additional filters. Please, check the short video below.
- Topic - select a property to change the values represented in the Heat map on the "y" axis.
- Color Pallette - the heat map uses a warm-to-cool color spectrum to show you which parts of your workflow need more attention.
- Show/hide data control that allows you to zoom in and out of a specific interval within the selected time frame.
- Item Filter - allows you to further refine the data that you want to be displayed on the Heat Map.
- Workflow Stages - deselect the columns in your workflow that you do not want to be visualized on the "x"axis.
