To generate a Sprint Burndown Chart using VisualScript, you'll need VisualScript installed on your Jira instance.
Once VisualScript is added to your instance, you can add a VisualScript gadget to your dashboard.
When the VisualScript gadget is added to a dashboard, you'll see a list of available reports to run.
The built-in reports will be in a folder called "Built-In Reports".
Choose "Jira Sprint Burndown" to add to your dashboard.
You'll be asked to provide a project key, the sprint name, and specify whether you want to include story points or not. You'll also need to enter your team's story point capacity.
If you choose to track story points, make sure all issues in your selected sprint have story points assigned to them.
Once your Sprint Burndown is generated, you'll see storypoints on the left y-axis and days across the right x-axis. The black line sloping from left to right that represents your ideal trajectory for progress. Your team's capacity will be represented by a blue line.
The target burn rate is the amount of work that needs to be completed per day to complete all work by the end of the sprint. The actual burn rate represents the speed at which your team is actually getting through work.
Your team's velocity is the actual burn rate. This will let you know how much work they'll finish during the sprint.