O
object database
object-oriented principles
object-oriented software
object-to-object mapper
ObjectDataSource
ObjectFactory.GetInstance
ObjectFactory.Initialize()
objects, data-transfer
OnActionExecuted
OnActionExecuting
OnAuthorization, 2nd
OnBegin
onclick event
OnComplete
OnException
OnExecutingMethod
OnFailure
onion architecture
OnResultExecuted
OnResultExecuting
OnSuccess
Oracle
sequence functionality
organization
Osherove, Roy, 2nd
out-of-process call
output caching
OutputCache
OutputRouteDiagnostics