Design Record Evolution

Each generic component in the avionics DSSA has a design record with pointers to instances of the design record (via the DSSA link data element). The design history records for instances of components ``inherit'' the elements of the generic while specializing those that are application specific. In particular:

• configuration and version data indicate parametric values used to instantiate the component and
• design rationale describe the reasons for their selection.

The resulting chain or information web is what has been called the ``Design History'' in ADAGE [#!ADAGEIBM9201!#].