About the Model
Richard Beckhard, one of the founders of organizational development, introduced the GRPI Model in the early 1970s. The acronym stands for:
Goals.
Roles.
Processes.
Interactions/Interpersonal Relationships.
When you address each of these elements, you can clarify your team's purpose, set priorities, increase efficiency, and identify and prevent potential problems. You can also use GRPI as a diagnostic checklist to help people who aren't operating at their best, as well as to "fine tune" your team, so that people work together more effectively.
Each of the GRPI Model's four letters are listed in the order of their importance in the team. So, for example, when people are unclear about their goals, they will be confused about the role that they play within the group. This, in turn, means that they can't follow processes effectively to accomplish their tasks, which has a negative impact on their interactions and relationships, because they can't work with others effectively. ...
https://www.mindtools.com/pages/article/the-GRPI-model.htm