Chapter 6 Behavioral Modeling 1 Oktober 2015 Behavioral

Chapter 6: Behavioral Modeling 1 Oktober 2015

Behavioral Models • • Diagram underlying business process Represent internal behavior of system Iterative Technology-independent (Analysis Phase)

3 Types 1. Sequence 2. Communication 3. Behavioral State Interaction – underlying details of Use Case Changes that occur in underlying data

Review of OO Concepts Patient Class Attributes: - Name - Address - Birthdate Methods (or Operations) Objects of Patient Class: • Jim Maloney • Mary Wilson • Theresa Marks

Type 1: Sequence Diagrams • Sequence of events for ONE Use Case • Show sequence of messages passed between objects

Sequence Diagram Example Make Appointment Becomes. . .

Sequence Diagram Components AN ACTOR AN OBJECT an. Object: a. Class A LIFELINE A FOCUS OF CONTROL A MESSAGE OBJECT DESTRUCTION a. Message() x

Practice Exercises

Type 2: Communication Diagrams • Show communication flows among objects • An object diagram • Show patterns of activity

Communication Diagram Example

Communication Diagram Components AN ACTOR AN OBJECT an. Object: a. Class AN ASSOCIATION A MESSAGE a. Message()

CRUD Analysis

Practice Exercises

Type 3: Behavior State Diagrams • Show different states through which an object passes during its life • Used to show an instance evolves over time

Behavioral State Terminology State – value of attributes at specific point in time Event – stimulus that changes an object’s value Transition – movement of object from one state to another Action – Nondecomposable (Atomic) process that cannot be interrupted (an action is assosiated with a transition) • Activity – Can be decomposed & can be stopped/started by Actions (an activity is assosiated with a state) • •

Behavioral State Example

Behavioral State Components A STATE a. State AN INITIAL STATE A FINAL STATE AN EVENT A TRANSITION an. Event

Practice Exercises