ePCA
electronic Pneumatic Clutch A???
HPCA
High Performance Computing Act
IPCA
Internet Parallel Computing Archive
OPCAT
Object Process CASE Tool
PCA
Personal Client Architecture
ABS
Analysis By Synthesis
ACIAS
Automated Calibration Interval Analysis System
ACIAS
Automated Calibration Internal Analysis System
ACRE
Authorized program analysis report (APAR) Control Remote Entry
ADA
Applied Decision Analysis