72 OASIS definitions

Organization for the Advancement of Structured Information Standards 
Online Application System Interactive Software 
Open And Secure Information Systems 
Oceanic and Atmospheric Scientific Information System 
Organic Airborne and Surface Influence Sweep 
Online Analytical Statistical Information System 
Open And Secure Informations Systems 
Operational Activities Special Information Systems 
operational area satellite information system 
Orbit Avionics Software Integration Study 
Organization for the Advancement for Structured Information Standards 
Organization to Assess Strategies for Ischemic Syndromes 
Ocean All Source Information System 
Oceanic & Atmospheric Scientific Information Systems 
OEX Autonomous Supporting Instrumentation System 
Office Automation and Systems Improvement Standards 
Office automation strategy for information systems 
Operational Application of Special Intelligence Systems 
Operational Automatic Scheduling Information System 
Operations and Science Instrument Support 
Optical Acoustic Satcom Integrated Sensor 
Optimized Advanced System Integration and Simulation 
Orbiter Avionics to Station Interface System 
Organization for the Advancement of Structured Information Systems 
Outcome and Assessment Information Set 
Oasis Hong Kong Airlines 
Objective Assessment of Skills in Intraocular Surgery 
Observation at Several Interacting Scales 
Observational Arthritis Study in Seniors 
Observations At Several Interacting Scales 
Obstetric Anesthesia Safety Improvement Study 
Ocean Acquisition System For Interdisciplinary Science 
Ocean and Atmospheric Sounding Interferometer System 
Oceanic and Atmospheric Scientific Information Systems 
Oceanic Area System Improvement Study 
Office Automation Services and Information Systems 
Office Automation System for Intelligence Support 
Office Automation Systems Improvement Standards 
Office Of Arts And Sciences Information Services 
Older Adults Service and Information System