TDI

from The Free On-line Dictionary of Computing (8 July 2008)

Transport Driver Interface
TDI

   <networking> (TDI) Developed by {SUN}, {IBM}, and {Microsoft}
   (and others?), the TDI is a {software} {interface} between the
   {protocols} and {application programing interface} layers of
   the {Windows NT network model}.

   (1997-11-05)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

TDI
       Test Data Input (TAP, IC)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

TDI
       Trusted Database Interpretation (DB)