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The concept of Systems Analysis and Design (SAD) in Management Information System (MIS)
In this tutorial, we will learn about the concept of Systems Analysis and Design (SAD) in Management Information System (MIS).
By IncludeHelp Last updated : June 01, 2023
Systems Analysis and Design is a combination of three individual terms that have their meaning. The meaning of these terms is as follows,
Systems
A system is an organized group of components linked together to accomplish a specific objective according to a predefined plan. Every system has its goal; component of a system has its role but all components work together to achieve the desired goal of the system.
For example- a computer is a system; its goal is to take data as an input; process it and gives the desired result/output. While keyboard, mouse, monitor, CPU, etc are the components of the computer system and the role of these components is different but all work together to achieve the main goal of the computer system.
Analysis
An analysis is a detailed inquiry about a particular problem. It enquires about the answers to all possible questions like what, why, when, how?An analysis is a detailed inquiry about a particular problem. It enquires about the answers to all possible questions like what, why, when, how?
For example - if we have a problem and want to solve systematically than we will start from the point-like what is the problem?
Is there any existing solution?
What will be a feasible solution?
How the problem will be solved efficiently?
An analysis is a systematic study/evaluation of data or information by splitting it into its parts to reveal its interrelations. The person who did analysis is known as an analyst. The analyst is an experienced and expert candidate who did the analysis.
Design
It is a blueprint that describes the components and their relationship with a system. Before the implementation of a system, the system experts make its design which describes the internal and external layout of the system and describes the interdependency between the components of the system. There are two types of design,
- Logical design - this design describes the abstract of a system.
- Physical design - this design relates to the system's processes i.e input, process, and output. It produces the working system by specifying the specification of the design which sets out exactly what the candidate system does.
SAD is a systematic procedure to develop or redesign a system. Before developing a new system, the expert/executives did a detailed analysis.