ITEC 3030 - L4: Object Oriented Analysis

Domain Modeling

Identifying objects and their responsibilities in systems.

Identifying Objects

Recognizing nouns representing entities in the domain.

Object Responsibilities

Functions or actions associated with each object.

Temperature Sensor

Device measuring temperature and reporting data.

Main Controller

Central unit managing HVAC and air vents.

HVAC

Heating, Ventilation, and Air Conditioning system.

CRC Card

Class, Responsibility, Collaboration card for design.

Class Name

Identifier for a specific object type.

Responsibilities

Tasks assigned to a specific class.

Collaborators

Other classes interacting with the main class.

Periodic Readings

Regular temperature data submissions to the controller.

Sudden Changes

Immediate temperature updates triggered by fluctuations.

Action Decisions

Choices made by the controller based on data.

Air Vent

Component controlling airflow in the environment.

Measure Temperature

Primary function of temperature sensors.

Submit Readings

Process of sending temperature data to the controller.

Start HVAC

Initiate heating or cooling based on conditions.

Stop HVAC

Cease operation of heating or cooling system.

Open Vent

Allow airflow through the air vent.

Close Vent

Block airflow through the air vent.

God Element

Single entity handling too many responsibilities.

Coupling

Degree of interdependence between classes.

Cohesion

Measure of how closely related class responsibilities are.

Too Much Coupling

Difficult to change one part without affecting others.

Too Little Cohesion

Hard to locate or modify specific functionalities.

Design Exploration

Using CRC cards to visualize system architecture.

Index Cards

Physical cards used to represent classes and responsibilities.

Class Responsibilities

Duties that a class must perform.

Delegation

Assigning responsibilities to other classes when overloaded.

System Architecture

Overall structure and organization of a system.

Object-Oriented Analysis

Methodology for analyzing and designing systems using objects.