Software Engineering

4.5 
Software integration strategy
The software integration strategy is developed while preparing the software prod-
uct physical architecture. It identifies how structural units will be combined into a 
set of structural components. Structural units are derived from the functional archi-
tecture by grouping common functional units and assimilating the unit specifica-
tions to eliminate conflicts, duplication, and inconsistencies. Structural components 
are then synthesized by grouping structural units and assimilating their specifica-
tions to establish structural component specifications. Structural component speci-
fications should not reiterate structural unit requirements, but should address those 
unique behavioral characteristics and interfaces that result from the integration. 
This understanding of an integrated software component’s behavioral character-
istics results from the synthesis of lower-level structural elements into an inte-
grated structural component. This integration strategy may involve the integration 
Software Product
1. Configuration Item X
1.2  Physical Configuration
1.2.1  Structural ComponentX.1
1.2.1.2  Structural ComponentX.1.2
1.2.1.2.1  Structural UnitX.1.2.1
1.2.1.2.2  Structural UnitX.1.2.2
1.2.1.2.3  Structural UnitX.1.2.3
1.2.3  Structural Interfaces
1.2.4  External Interfaces
2.    Configuration Item Y
3.    Glossary of Names
1.2.1.1  Structural ComponentX.1.1
1.2.1.1.1  Structural UnitX.1.1.1
1.2.1.1.2  Structural UnitX.1.1.2
1.1  Functional Configuration
1.1.2  FunctionX.2
1.1.3  Functional Interfaces
1.1.2.1  SubfunctionX.2.1
1.1.2.2  SubfunctionX.2.2
1.1.1  Functional ComponentX.1
1.1.1.1  Functional ComponentX.1.1
1.1.1.2  Functional ComponentX.1.2
1.1.1.3  Functional ComponentX.1.3
1.1.1.3.1  Functional UnitX.1.3.1
1.1.1.3.2  Functional UnitX.1.3.2