How system analysis and design is different from object oriented analysis and design?

Answer 1

System analysis and design (SA&D) and object-oriented analysis and design (OOAD) are two different approaches to the development of computer-based information systems.

SA&D is a traditional approach that focuses on understanding the requirements of the system, analyzing the current system, and designing a new system that meets those requirements. It is a process-oriented approach that typically involves creating a detailed specification of the system before beginning development.

On the other hand, OOAD is a modern approach that focuses on modeling the system as a collection of objects that interact with each other to achieve the desired functionality. It is a more object-oriented approach that involves designing a system by first identifying the objects in the system, their properties, and the relationships between them.

Some of the key differences between SA&D and OOAD are:

Focus: SA&D focuses on the process of designing a system, while OOAD focuses on the objects in the system and their interactions.

Design: SA&D is typically a top-down design approach, while OOAD is a bottom-up design approach.

Requirements gathering: SA&D emphasizes the gathering of requirements and creating detailed specifications before beginning development, while OOAD emphasizes rapid prototyping and iterative development.

Abstraction: OOAD relies heavily on abstraction, while SA&D relies more on specific details and processes.

Overall, both SA&D and OOAD are valid approaches to the development of computer-based information systems, and the choice between them depends on the specific needs and requirements of the project.

Answer 2

system analysis and design is different from object oriented analysis and design