Methods and systems for obsolescence mitigation of electronic systems including hardware and software components, in particular methods and systems for managing obsolete instrument hardware and application software used in legacy Automated Test Systems (ATS) or Automatic Test Equipment (ATE). When one or more components of a test program set (TPS) has been rendered obsolete, migration to one or more replacement instruments without any impact to the TPS or other remaining legacy instruments in the ATE or ATS is obtained by a translator module interposed between the new instrument and the system bus for translating instructions for the obsolete instrument or set of instruments into instructions or procedures for the new instrument whereby the new instrument thus functions in the same manner as the obsolete instrument or set of instruments.