SOURCE CODE TAILORING

A LONG-STANDING PROBLEM IN SOFTWARE ENGINEERNG IS AN INABILITY TO REUSE EXISTING, PROVEN SOFTWARE IN SIMILAR APPLICATIONS. WE ARE PROPOSING A PROVEN SOLUTION BASED ON THE USE OF A "META" PROGRAMMING TOOL, THAT WILL ALLOW THE DERIVATION OF PROGRAM SCHEMAS FROM EXISTING SOFTWARE AND CREATION OF NEW PROGRAMS FROM THOSE SCHEMAS. THE ESSENCEOF THIS APPROACH IS THAT EFFECTIVE REUSE REQUIRES PROGRAMMERS TO DESCRIBE HOW ANTICIPATED VARIANTS OF A PROGRAM CAN DIFFER. PROGRAM VARIANTS ARE VIEWED AS INSTANCES OF A SCHEMA (ABSTRACTION) THAT REPRE-SENTS A GENERALIZATION OF THE INSTANCES. THIS PROJECT WILL CONVEY THEPRINCIPLES OF METAPROGRAMMING AND DEMONSTRATE ITS FEASIBILITY FOR NAVYUSE IN SHIPBOARD SOFTWARE DEVELOPMENT. AN OPERATIONAL SOFTWARE AE SCHEMA PROCESSOR WILL BE GENERALIZED TO ALLOW DERIVATION OF NAVY STANDARD LANGUAGE PROGRAMS FROM SCHEMAS OF EXISTING PROGRAMS.