has_specified_input has_specified_output achieves_planned_objective has quality material entity material maintenance objective freezing storage 2010/3/3 Alan Ruttenberg: There is a question of whether we should have a separate objective to "prepare for maintenance" 2014/2/3 OBI dev call: "prepare for maintenance" is a separate process. For example, 'freezing' and 'flash freezing' are defined and can be used to produce frozen material for storage. Updated both textual and logical definition. Both input and output material of freezing storage have quality frozen. A storage process in temperature that maintenance the frozen status of the stored entities. OBI Person: Alan Ruttenberg, Mathias Brochhausen a fozen pellet used for later assay freezing storage MO_481 frozen_storage storage frozen metadata complete