The Team and Technical Agility Core Competency describes the critical skills and Lean-Agile principles and practices that high-performing Agile teams and Teams of Agile teams use to create high-quality solutions for their customers. It consists of three dimensions: Agile Teams, Team of Agile Teams, and Built in Quality1. Built in Quality is the dimension that ensures that every aspect of the solution, from code to compliance, is designed and implemented with high standards and practices that guarantee quality. Built in Quality enables fast and reliable delivery of value, reduces waste and rework, and fosters a culture of continuous improvement. Some of the practices that support Built in Quality in SAFe are Test-First, Behavior-Driven Development, Acceptance Test-Driven Development, Continuous Integration, Continuous Deployment, and Communities of Practice2. References: Team and Technical Agility - Scaled Agile Framework, Built-In Quality - Scaled Agile Framework.