What does OOSA stand for?

National Social Services Consultant and Government Relations Officer, Salvation Army Library, Ottawa, Ontario - Library symbol - National Library of Canada (BIB)

Object Orientated System Analysis (SAUS)

Object-Oriented Software Architecture (SAUS)

Object-Oriented Structured Analysis - Computer science (HODG)

Salalah - Oman - ICAO location identifier (ICLI)