The document discusses how DevOps is changing the role of quality assurance (QA). It argues that with software increasingly delivered as a service, the focus of QA must shift from testing software to ensuring quality across four dimensions: functionality, operability, deliverability, and coherency. The new QA role involves representing the customer perspective, facilitating requirements understanding, and acting as a "boundary-spanning mirror" to help development, operations, and other teams understand each other and customers. Continuous delivery requires QA to test outside-in across the full customer experience and help build quality into the entire service delivery process.