Software Engineering

54
CHAPTER 3 
Software Architecture
lowest-level functions, functional units, are assigned to the structural units of the 
physical design establishing the relationship between the functional and physical 
architecture domains. The structural component integration strategy establishes the 
approach for assembling and integrating the structural units and components into 
one or more software configuration items.
The software architecture discussed in this chapter involved the software prod-
uct architecture, the computing environment, and the definition of the post-devel-
opment processes. The software architecture addresses the product and additional 
elements tightly associated with the product’s operations and sustainment. Each of 
these elements that make up the software architecture involves a set of requirements 
and a functional and physical representation. This is consistent with the software 
breakdown structure (SBS) and IPPD philosophy addressed previously. The soft-
ware product architecture involves the product requirements, product functional 
architecture, and product physical architecture. The elements of the software prod-
uct architecture are examined in more detail in the following chapters of this book:
●
  Product requirements—Chapters 7–9
●
  Functional architecture—Chapters 10 and 11
●
  Physical architecture—Chapters 12 and 13

---