Measuring performance in software development requires tracking metrics to understand how the parts of the development process work together. Agile metrics can help measure productivity, and understanding these agile metrics means measuring them effectively and knowing which ones are important to the development process. It is important that they provide insight into resource requirements and how these resources are used to deliver a given capability on a given schedule. These metrics are key to the development, budgeting, and ultimately the software acquisition process. And gathering these metrics starts with a solid foundation for data collection.