Design for test using a multi-tiered, model based specification approach

A complex electronic system may consist of numerous components and subcomponents. Each of the components, as well as the system as a whole, may be specified for design, test, and diagnostic purposes. These specifications, in turn, may be captured using model based techniques. Currently, such models are not generally used in conjunction with each other to the extent that they can provide benefits with regard to test and diagnostic validation and verification across the system. This paper attempts to demonstrate how model based specifications for test and diagnostics can be integrated and used within the design process to provide design for test capabilities