OMTM (One Metric That Matters) Like a Persona on the Back-Stage

While reading the Lean UX book... as I got to the part on "the one metric that matters" (OMTM, One Metric That Matters), it suddenly struck me that OMTM might be the back-stage version of a Persona.

The persona is active on the front-stage, if you will. It frees us from the hearsay and context-less requirements coming from an unspecified crowd. Only when there is a reference persona with defined needs and a journey can UX and UI start to expect consistency and optimization.

If personas live on the front-stage, then the back-stage has OMTM (One Metric That Matters). It becomes the shared criterion by which the internal collaborators -- development, launch, operations, marketing -- make decisions together.

Just as personas and stakeholder models expand as a service grows, OMTM also shifts along with the service's growth and life cycle.