V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

TDI
       Trusted Database Interpretation (DB)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

TDI
       Test Data Input (TAP, IC)


The Free On-line Dictionary of Computing (30 December 2018):

Transport Driver Interface
TDI

    (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)