Basic partitioned access method (BPAM) arranges records as members of a partitioned data set (PDS) or a partitioned data set extended (PDSE) on DASD. You can use BPAM to view a UNIX directory and its files as if it were a PDS. You can view each PDS, PDSE, or UNIX member sequentially with BSAM or QSAM. A PDS or PDSE includes a directory that relates member names to locations within the data set. Use the PDS, PDSE, or UNIX directory to retrieve individual members. For program libraries (load modules and program objects), the directory contains program attributes that are required to load and rebind the member. Although UNIX files can contain program objects, program management does not access UNIX files through BPAM.