Globally unique identifier in the X-Road system. Identifier consists of object type specifier and list of hierarchical codes (starting with code that identifiers the X-Road instance). Enumeration for X-Road identifier types. Identifies the X-Road instance. This field is applicable to all identifier types. Type of the member (company, government institution, private person, etc.) Code that uniquely identifies a member of given member type. Code that uniquely identifies a subsystem of given X-Road member. Code that uniquely identifies a global group in given X-Road instance. Code that uniquely identifies a service offered by given X-Road member or subsystem. Version of the service. Code that uniquely identifies security category in a given X-Road instance. Code that uniquely identifies security server offered by a given X-Road member or subsystem.