System design life cycle and Object Oriented S/W development process model

Introduction

System design life cycle and Object Oriented S/W development process model are crucial concepts in the field of Object-Oriented Analysis and Design (OOAD). They provide a structured approach to software development, ensuring that the final product is reliable, efficient, and meets the user's requirements.

System Design Life Cycle

The System Design Life Cycle is a process that is followed for a system to develop a software product. The phases of this life cycle include:

1. Requirements gathering and analysis: This is the first stage where the requirements of the system are collected by analyzing the needs of the user(s).
2. System design: In this phase, the system and software design is prepared from the requirement specifications which were studied in the first phase.
3. Implementation: With inputs from system design, the system is first developed in small programs called units, which are integrated in the next phase.
4. Testing and validation: After the code is developed it is tested against the requirements to make sure that the product is actually solving the needs addressed and gathered during the requirements phase.
5. Deployment and maintenance: Once the functional and non-functional testing is done, the product is deployed in the customer environment or released into the market.

Object Oriented S/W Development Process Model

The Object Oriented S/W development process model is a software development methodology that follows an object-oriented approach. The steps in this model include:

1. Requirements gathering and analysis: Similar to the System Design Life Cycle, this is the first stage where the requirements of the system are collected by analyzing the needs of the user(s).
2. System design: In this phase, the system and software design is prepared from the requirement specifications which were studied in the first phase.
3. Object design: This phase includes the design of the classes, their relationships, and their interaction with each other.
4. Implementation: The classes and relationships designed in the previous phase are implemented using an object-oriented programming language.
5. Testing and validation: The implemented classes and their interactions are tested to ensure they meet the requirements.
6. Deployment and maintenance: Once the functional and non-functional testing is done, the product is deployed in the customer environment or released into the market.

Conclusion

In conclusion, the System Design Life Cycle and the Object Oriented S/W development process model are essential methodologies in the field of OOAD. They provide a structured approach to software development, ensuring that the final product is reliable, efficient, and meets the user's requirements.

Summary

The System Design Life Cycle and the Object Oriented S/W development process model are methodologies used in the field of Object-Oriented Analysis and Design (OOAD). They provide a structured approach to software development, ensuring that the final product is reliable, efficient, and meets the user's requirements.

Analogy

Think of building a house. The System Design Life Cycle is like the blueprint for the house, detailing what needs to be built and how. The Object Oriented S/W development process model is like the construction process, where the house is built according to the blueprint, with each room (or object) being built and tested before moving on to the next.