System Analysis and Design

Introduction

• Importance of System Analysis and Design: How to analyze and design a system to create a better system.
• Definition of System: A system is a group that works together to accomplish a common task.
• Example: Various components inside a CPU, such as the motherboard, RAM, processor, etc., together form a system.

System Analysis

• Definition: It is a process in which we analyze a system and identify its objectives.
• Objectives:
  • Understand how the system works.
  • Identify the goals and objectives of the system.
• Importance: Gather necessary information and facts to upgrade or update a system.

System Design

• Definition: It is a process in which we plan a new system or replace an existing system.
• Process:
  • First analyze and then prepare a new design.
  • Define components or modules so they can meet the requirements.
• Main Objective: Fulfill the system's objectives.

Need for System Analysis and Design

• Importance: For the development of a system, whether it be software, hardware, or a company.
• Examples of Development:
  • Creation of a new system such as an online food ordering system.
  • Updating an existing system such as improving WhatsApp or Facebook features.

Conclusion

• The Entire SAD Process:
  • Understand and analyze the system.
  • Then design it so it can better fulfill its objectives.