|Tip 21||Velocity Charts Are the Single-Best Chart|
If you can make only one chart, choose a velocity chart. Velocity charts use three measurements (requirements, completed work, and date), all on one chart. They don’t provide a picture of defects or cost, two more measures you might like to see. But they provide an overall picture of progress on one chart.
Because you’re measuring several trends on one chart: total requirements and completed work, including all the testing and documentation and whatever else your project requires over time, it’s the single-best chart. If you’re working without implementing by feature, the chart shows no completed work, which is exactly the state your project is in. Velocity charts are your friend.