Process Owner

An external resource in a project that falls under the Champion role, it's usually the role given to lower-level management like a team lead, supervisor, manager, or higher. They have direct ownership and responsibility for the process targeted by the project and often serve to drive coordination for getting resources and either removing roadblocks or escalating them to the Champion. Communication with them by the LSS project leader tends to be very frequent (i.e., about 1 to 2 times per week).
Related StatStuff Video: 
   -Section 1-Introduction, Lesson #8 - Key Roles in a Lean or Six Sigma Project