Quality is decided by the depth at which the work incorporates the alternatives within itself, and so masters them.
Assume variability; preserve options.
—SAFe Principle #3
Systems development can be described as a process of continuously reducing uncertainty to knowledge. No matter how well a system is initially defined and designed, real Customer needs and technological choices are both uncertain, and therefore the understanding of how a system needs to be implemented will have to adapt over time to reflect reality.
Point-Based Design—the process of committing to a specific, detailed requirements and ...