Object-Oriented Analysis Design (7)

Elaboration

• Elaboration is the initial series of iterations during which :
  - The core risky software acrhitecture is programmed and testsed.
  - The majority of requirements are discovered and stabilized.
  - The major risks are mitifated or retired.
• Important artifacts start in Elaboration :
  - Domain model : domain objcts and concepts
  - Design model : design class diagram, interaction diagram
  - SW Architecture Document (AD)

 

Designing Objects : Static vs. Dynamic

• Two kinds of object models  :
  - Static models help design the definition of packages, class names, attributes, and method signatures.
  - Dynamic models help design the logic, the code, or the method bodies.
• Relationship between static and dynamic modeling : 
  - Spend a short period of time on interaction diagrams, then switch to a wall of related calss diagrams.

Class and Object

• class is a construction plan for a set of similar objects of a system.
  - Objects are instances of classes.
  - Arrtibutes : structural characteristics of a class
  - Operations  : behavior of a class

 

Types of Class Relationship