Software Engineering

12.2  Structural design considerations ...................................................................... 211
12.2.1  Structural design guidelines ........................................................ 211
12.2.2  Use of modeling and simulation................................................... 215
12.2.3  Behavioral analysis ..................................................................... 216
12.2.4  Structural trade-off analysis ........................................................ 217
12.2.5  Software product performance evaluations .................................... 217
12.2.5.1  Design responsiveness ........................................................
217
12.2.5.2  Design dependability ...........................................................
219
12.2.5.3  Resource utilization .............................................................
220
12.2.6  Software prototyping ................................................................... 222
This chapter addresses how the software physical architecture is derived and con-
figured from the functional architecture. The software functional solution was ana-
lyzed, specified, and simplified during functional analysis and allocation. During 
software design synthesis, the structural elements of the product are identified and 
the manner in which these elements are arranged, assembled, and integrated is 
established. The result of software design synthesis is the structural configuration 
of the software product, which along with its documentation comprises the physical 
architecture. The complete software design solution is comprised of the functional 
and physical architecture. The software product architecture is comprised of the 
software product specifications, the functional and physical architectures, and the 
computing environment architecture. The complete software architecture involves 
the software product architecture and the post-development process architectures. 
Figure 12.1
 shows the relationships among the various architecture configurations.
The physical architecture captures the structural representation of the design 
solution, as well as the engineering drawings, diagrams, and models from which 

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