Gayla asked, “You mentioned relating the competencies to the org mission. can you give examples of that?” I want to start out by pointing you to a short ATD blog post that describes the answer more deeply.
In summary, in any organization, everyone has intermediate goals that, if accomplished (by everyone), would lead to the achievement of the organization goals and mission. You might hear this referred to as cascading strategy. The deeper in the organization you go from top to bottom, the more specialized the goals and the required skills, until you get to a specific person performing a specific role, such as an R&D engineer.
That’s where you have a role-based competency model. A person with competence in their role will achieve their part of corporate strategy.