Agenzia Spaziale Italiana Additional Skill Identifier Adapter Support Interface Air Speed Indicator Alternate Space Inversion Automatic System Installation Aviation Safety Inspectors Agenzia Spaziale Italiano American Society of Indexers Army Space Institute Ashika Asynchronous Serial Interface Addiction Severity Index Advanced Switching Interconnect Advertising Specialty Institute Astronomical Society of India Augmented System Ignition Automated Shore Interface Advanced Science Instrument Advanced Study Institute Advanced Systems Institute All-Sky Imager Amended Shipping Instructions American Society for Indexing American Standards Institute Ampere-Second Integration anxiety status inventory Application Software Interface Application Specific Information arterial stiffness index