Complexity

In order to tackle the complexity of software we need to use the tools of (Booch):
- Decomposition
- Abstraction
- Organization (interrelationships between problem solving components).
The characteristics of a complex system are:
- Complexity frequently takes the form of a hierarchy--a system composed of interrelated subsystems.These are dynamic relationships.
- We can distinguish between the interactions among subsystems and the interactions within subsystems. Complex systems are nearly decomposable.
- The choice of primitive components is nearly arbitrary.
- Hierarchical systems evolve more quickly than non-hierarchical ones because they have stable intermediate forms.