The Collaborative International Dictionary of English v.0.48:

interworking \in`ter*work"ing\, n.
   The act of working in together; interweaving. --Milton.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

27 Moby Thesaurus words for "interworking":
   alternation, coaction, complementary distribution, concurrence,
   cooperation, dovetailed, engagement, in gear, in mesh, interacting,
   interaction, interactive, interchange, intercommunication,
   intercourse, interlacing, intermeshing, interplay, interplaying,
   intertwining, interweaving, mesh, meshing, mortised, quid pro quo,
   seesaw, tit for tat



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

interworking

    Systems or components, possibly from different
   origins, working together to perform some task.  Interworking
   depends crucially on standards to define the interfaces
   between the components.  The term implies that there is some
   difference between the components which, in the absence of
   common standards, would make it unlikely that they could be
   used together.  For example, software from different
   companies, running on different hardware and operating
   systems can interwork via standard network protocols.

   (1998-11-22)