APSE

APSE standing for Ada Programming Support Environment is a program or set of programs to support software development in the Ada programming language.

This represented the second stage of the U.S. military Ada project; once the language was implemented, it was felt necessary to specify and implement a standard set of tools, hence the APSE.

CAIS-A, Common APSE Interface Set A, was defined in MIL STD-1838A.