IV. THE EIGHT LEVELS OF APPLICATION FOR ELECTRONIC PRODUCTS
Before delving any further, a review of the existing Eight Levels of Application for electronic
products is in order to level-set the reader and brush-up on the hierarchical nature of the levels.
Those readers well familiarized with these levels can continue to the next section or read on as a
refresher.
As seen below in Fig. 8 that shows an image of a generic electronic chassis, the existing
system is clearly based on common electronic assemblies. The microprocessor sockets, mother-
daughter board arrangements as well as the enclosure I/O are all visible and readily identified.
Fig. 5 Original six levels of electronic packaging
Exploring each level a little closer, let's look at the differentiators of each level.
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