Externally described files standardize file access, and result in simpler, easier to read code.
Noncompliant code example
FEPBLMSL2 IF F 100 DISK INFSR(*PSSR)
F*
F*
Compliant solution
F*
FIPBDCCP IF E K DISK INFSR(*PSSR)
F*
FEP210 CF E WORKSTN INFSR(*PSSR)
F SFILE(EP21003S:RELN03)
FEP471R1 O E PRINTER INFSR(*PSSR)
F USROPN
F INFDS(W1SF01)
