Object Oriented Design

Introduction

Object Oriented Design (OOD) is a design methodology that is used in software development. It is based on the concept of 'objects', which can contain data and code. Data in the form of fields (often known as attributes), and code, in the form of procedures (often known as methods).

Combining Models in OOD

Combining models in OOD involves the use of inheritance, polymorphism, encapsulation, and abstraction. These are key concepts that allow for the creation of complex and versatile software systems. For example, inheritance allows for the creation of new classes based on existing ones, allowing for code reuse and reduction of complexity.

Designing Algorithms and Optimization

Designing algorithms in OOD involves the use of object-oriented analysis, design patterns, and programming. These concepts allow for the creation of efficient and effective software systems. For example, design patterns provide solutions to common design problems, allowing for the creation of reusable and maintainable code.

Implementation of Control and Adjustment

The implementation of control and adjustment in OOD involves the use of object-oriented programming languages, design principles, and design patterns. These concepts allow for the creation of software systems that are easy to maintain and modify. For example, design principles such as the Single Responsibility Principle (SRP) ensure that a class only has one responsibility, making it easier to maintain and modify.

Design of Association and Object Representation

The design of association and object representation in OOD involves the use of association, aggregation, composition, and object representation. These concepts allow for the creation of complex and versatile software systems. For example, association allows for the creation of relationships between classes, allowing for the creation of complex systems.

Physical Packaging and Documenting Design Decisions

Physical packaging and documenting design decisions in OOD involves the use of component-based development, design documentation, and design patterns. These concepts allow for the creation of software systems that are easy to maintain and modify. For example, component-based development allows for the creation of software systems from reusable components, reducing complexity and increasing maintainability.

Comparison of Use-Case Driven Approach

The use-case driven approach in OOD involves the use of use-case modeling, diagrams, and scenarios. These concepts allow for the creation of software systems that meet the needs of the user. For example, use-case scenarios provide a description of how the system should behave, allowing for the creation of software systems that meet the needs of the user.

Conclusion

Object Oriented Design is a powerful design methodology that allows for the creation of complex and versatile software systems. It involves the use of key concepts such as inheritance, polymorphism, encapsulation, and abstraction, and allows for the creation of software systems that are easy to maintain and modify.

Summary

Object Oriented Design (OOD) is a design methodology used in software development, based on the concept of 'objects', which can contain data and code. Key concepts in OOD include inheritance, polymorphism, encapsulation, and abstraction. OOD allows for the creation of complex and versatile software systems that are easy to maintain and modify.

Analogy

Think of Object Oriented Design like building with Lego blocks. Each block (or object) has its own properties and behaviors, and can be connected (or associated) with other blocks to create complex structures. Just like how you can reuse Lego blocks to build different structures, in OOD, you can reuse objects to build different software systems.