### **User Type**  Guest - not yet login the system Registered User - register (sign up) the ecosystem with providing the system the email address (it is hidden from other users) and then login the system. Member - got the membership by submitting the profile information and get approval (for some roles only). Member should select a role during the application process. There is a member directory to display all the members in this ecosystem, however, the visibility of each role may be varied by the role of the audience, e.g., directory of Basic Members is only available to members.