(1) The object of a lock or claim, which could be a table space, an index space, a data partition, an index partition, or a logical partition.
(2) Any physical item or logical item to be managed in an information system of an enterprise.
(3) Any facility of a computing system or operating system required by a job, task, or executing program. Resources include main storage, input/output devices, the processing unit, data sets, files, libraries, folders, and control or processing programs.