Basic direct access method
{'<entity_0>': 'Basic direct access method', '<entity_1>': 'access method', '<entity_2>': 'OS/360'}
[['Basic direct access method', 'part of', 'OS/360'], ['Basic direct access method', 'instance of', 'access method']]
<entity_0>, or BDAM is an <entity_1> for IBM's <entity_2> and successors computer operating systems on System/360 and later mainframes.
['access method']