Data provider's identifier of the metadata record of this agent. Required. Not Repeatable The organisation that is the agent. Required. Not Repeatable Desription of the agent. Optional. Repeatable Telephone number of agent. Global international telephone number begining '+' is preferred. Optional. Not Repeatable Email contact address for agent. Required for administrator. Not Repeatable URL for agent. Optional. Not Repeatable URL of a logo for the agent. Optional. Not Repeatable Person or organisation who created the metadata record. Optional. Repeatable Person or organisation who modified the metadata record. Optional. Repeatable Date when metadata record was created (or manually updated). Optional. Repeatable Language of the metadata record. Optional. Not Repeatable URL of source record from which this metadata record was derived. Optional. Repeatable