A role describes what you do in a particular workplace
You may have more than one role over several different workplaces, or you may have more than one role at a single workplace that change over time. For example, you may initially have a role as a "registrar" then at a later time a "fellow" or "consultant"
Its unusual to have two "active" roles at the same time at the same location
Importance of Roles
Most of the things you do at your workplace are associated with your role
For example, leave, call, allocations are all associated with your role at a particular location
Your access to various parts of HosPortal is associated with your role, and may change when the role "ends" or becomes "inactive"
Typically "inactive" roles have limited or no access to HosPortal data