The collective "OpenMRS ID" refers to this system of user management used by the OpenMRS community. An individual user in the system (a person with a username and password) is said to have a single "OpenMRS ID".

The ID subsystem is formed by:

Jira, Crowd and Wiki have a local/internal user to fix connections with Crowd/LDAP. They also an internal captcha to catch users with multiple failure attempts.

LDAP Objects

LDAP is a hierarchical data storage.

The top level node is 'dc=openmrs,dc=org'. 

All users belong to 'ou=users,dc=openmrs,dc=org', what means that users is an Organization Unit (just a child node like any other) of node 'dc=openmrs,dc=org'.

A username 'jane_doe' is represented as "uid=jane_doe,ou=users,dc=openmrs,dc=org" , which is 'user ID jane_doe' child node of node 'ou=users' of node 'dc=openmrs,dc=org'.

Full Hierarchy