Discover external stakeholders, involved but not considered internal , customer considered as another stakeholder,
- Other persons can also be involved but they are not considered internal to the project and should behave in certain way (e.g. respect how a Scrum project works)
- When the project is not internal, the customer should be considered as another stakeholder and should understand/adopt the Scrum framework.
- You may or may not have a separate customer, but you always have some external stakeholders (management, users, analytics…) and should consider them in your development style.