The first task of the project was to identify and document a prototype system design that included a
number of performance requirements based on three levels of vehicle implementation: an “ideal”
(i.e., OEM) implementation, a demonstration vehicle, and field operational test (FOT). These levels
provided a distinct conceptual framework to plan and implement STC subsystems based on access
or restrictions to vehicular data and functionality (e.g., vehicle internal computer data). This section
of the document provides a brief overview of the system functionalities and outlines the proposed
prototype STC based on the conceptual levels of implementation.