"Agility" is an often used Buzz Word. Whether in connection with agile development, agile companies or agile modeling. The slogan expresses that organizations are able to respond quickly to changing conditions. Agile approaches - Scrum, XP, SAFe - do not favor role definitions. However, the skills and knowledge in the model development process are so diverse today (process modeling and analysis, decision modeling and analysis, risk assessments, etc.). It is not possible to master all skills equally well. But we still expect employees to keep track of everything and have a holistic understanding. Scott Ambler speaks of "Generalizing Specialists." in this context
"Disciplined Agile Delivery" defines various roles in the team (Mark Lines, Scott Ambler: Introduction to Disciplined Agile Delivery) (a hybrid framework that incorporates various agile approaches) defines different roles. The framework differentiates between "Primary Roles" (necessary in every project) and "Secondary Roles" (depending on the project). See "Roles on DAD Teams".