Slides Part 2 (OOA, pages 1-128, pdf, 4 slides per page)

5. System class model
Borderline between system and environment
Refinement of the class model
6. Life-Cycle model
Global system behavior
Behavior of objects
DATA DICTIONARY
Contains all used names; representation as a table:
Name Kind Description Source
Name of the
element
Class, system operation,
attribute,
etc.
9
Short informal
description
Must be maintained throughout the entire development process!
11
All models that contain
the name
➠ Static aspects of the system: Class model
➠ Dynamic aspects of the system: Interface model
consisting of
• Use cases
• Scenarios
• Operation model
• Life-Cycle model
EXAMPLE
Name Kind Description Source
account.number attribute Unique account number
of an account.
Bank class A bank consists of a
number of accounts
open account system
operation
Transaction life-cycle
expression
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A customer opens an account
at a bank
A transaction is either an
deposit, a withdrawal, or
a balance query.
class model
class model,
system
model
class
scenario, operation
model
life-cycle model