Community is a social construct in which a member automatically receives an assigned identity and acts upon the assigned role and where other people within the community recognize the person’s taking on the role. We say “automatically” is because there is an expectation placed on community members. Part of the reason one is able to enter the community is because of the identity they were able to assume.
Identity is set of characteristics that one expresses when they become part of a community. Identity is constructed through the information that one presents to others (through words and actions) about themselves. At the same time identity is also constructed by how others perceive us or the information they obtain about us.