Software Engineering

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3.7 
Post-development process relationships and dependencies
4. 
Functional assimilation (physical architecture).
 Each of the functional units 
must be assigned to a structural unit where it may be combined, integrated, and 
blended with similar functions. The resulting structural unit requirements must 
be traceable to each functional unit specification.
3.6 
 Physical architecture relationships and 
dependencies
The physical architecture depicts the arrangement, interfaces, assembly, and inte-
gration configuration of the software product:
1. 
Structural design verification (functional architecture).
 The physical architc-
ture must be verified to confirm that all of the functional requirements 
have been incorporated into the structural unit and component integration 
specifications.
2. 
Structural design optimization (functional architecture).
 The physical archi-
tecture design refinements and optimization must be shown to conform to the 
funtional specificiatons. Structural design refinements may be embraced to 
accommodate structural design discretion and resourcefulness and may require 
adjustment of the functional specifications.
3. 
Structural performance validation (requirements baseline).
 The estimated per-
formance of the structural design must be determined using static mathematical 
or dynamic models. These performance estimates must be shown to satisfy the 
specified requirements.
4. 
Measured product performance (software implementation).
 The actual perfor-
mance of the software implementation must be measured and verified against 
the predicted performance of the structural design.