Student research highlight leveraging the technology investments of the past

Technology-based systems that were developed decades ago, from the Internet to aircraft, continue to be in use across industries. Considering the investment made, it is essential to maintain these systems. The maintenance of systems that are in use is termed servicing existing systems. In this paper, an extension of LESAT for servicing existing systems is proposed: the lean effectiveness model for products and services. Collaborations with INCOSE ISSWG and three aerospace and technology enterprises (Boeing, Pratt & Whitney, and Raytheon), as well as review of the literature, are used in capturing best practices for success in servicing existing systems.