Abstract: A method for resolving ambiguity in computer data includes processing a record creation request transmitted from a computing device. The record creation request includes entity creation data and a login key. The login key includes a primary identifier and a password. The method also includes executing a matching algorithm with a selectable combination of the entity creation data at an entity database to identify a single entity record matching a selectable combination of the record creation request. The single entity record is linked to multiple different login keys. The method also includes updating one or more attributes of the single entity record with the entity creation data. Further, the method includes storing session data created during a session associated with the login key by using the login key to segregate the session data in the entity database, and linking the session data to the single entity record.