Comprehensive and Detailed 250 to 250 words of Explanation From Exact Extract of SAFe 6.0, including the SAFe Release domains:

In SAFe 6.0, the CALMR approach to DevOps represents five key dimensions required to achieve continuous delivery of value: Culture, Automation, Lean flow, Measurement, and Recovery. Within this model, Measurement is not focused on traditional output or activity-based metrics, but on outcomes that directly reflect the health and effectiveness of the Continuous Delivery Pipeline. SAFe emphasizes measuring flow through the pipeline because it provides direct visibility into how efficiently value moves from concept to cash across development, deployment, and release activities.

Flow-based measurements enable organizations to identify delays, bottlenecks, rework, and variability that slow down delivery. By measuring the movement of features and changes through the pipeline, Agile Release Trains can improve predictability, reduce lead time, and increase deployment frequency while maintaining quality and stability. This directly supports SAFe’s Lean-Agile principles and the Flow Accelerator of “Make value flow without interruptions.”

Metrics such as Net Promoter Score (NPS) and Objectives and Key Results (OKRs) are important at the portfolio and product strategy levels, but they do not provide actionable insight into the operational performance of DevOps systems. Code coverage, while useful for engineering quality practices, is insufficient as a primary DevOps measure because it does not reflect end-to-end delivery performance or system reliability.

By focusing on flow through the pipeline, SAFe enables Release Trains to continuously inspect and adapt their DevOps practices, improve time-to-market, and deliver value faster and more reliably—core goals of the SAFe Release and DevOps domains.