Systems Analysis It is a process of collecting and interpreting facts, identifying the problems, and decomposition of a system into its components. System analysis is conducted for the purpose of studying a system or its parts in order to identify its objectives.

Definition: Systems design is the process of defining elements of a system like modules, architecture, components and their interfaces and data for a system based on the specified requirements. Bottom-Up or Top-Down approach is required to take into account all related variables of the system.

In business, System Analysis and Design refers to the process of examining a business situation with the intent of improving it through better procedures and methods. System analysis and design relates to shaping organizations, improving performance and achieving objectives for profitability and growth.

Analysis and Specification

1. Gather, analyze, and validate the information.
2. Define the requirements and prototypes for new system.
3. Evaluate the alternatives and prioritize the requirements.
4. Examine the information needs of end-user and enhances the system goal.

The main goal of systems analysis and design is to improve organizational systems, typically through applying software that can help employees accomplish key business tasks more easily and efficiently. As a systems analyst, you will be at the center of developing this software.

Key differences between Analysis and Design System analysis deals with the client issues and modification that has to be done in the project, whereas system design deals with the client’s requirement and need. System design is planning a new module by defining its components and satisfying its key requirements.

Systems Analysis Activities

• Gather Detailed Information.
• Define Requirements.
• Prioritize Requirements.
• Develop User-Interface Dialogs.
• Evaluate Requirements with Users.

Software analysis and design includes all activities, which help the transformation of requirement specification into implementation. Requirement specifications specify all functional and non-functional expectations from the software.

Most common System design tools are Context Diagrams, E-R Diagrams and Flow Chart. Flow Chart is also known as Data Flow Diagram which means a pictorial representation of the path which data takes from its initial interaction with the system until it completes any interaction.

No matter the field of study, systems analysis involves breaking a large complex project or product into small, manageable parts so each may be designed, studied or analyzed in detail. The tools an analyst uses have not changed much over the years and do not require high technology.

Systems analysis is a problem solving technique that decomposes a system into its component pieces for the purpose of the studying how well those component parts work and interact to accomplish their purpose. Ultimately, the system model becomes the blueprint for designing and constructing an improved system.

Structure system analysis is also called Structured System Analysis and Design method (SSADM) and the whole process allows control over the analysis stage to reduce the risk of making mistakes through the process. SSADM is also interpreted as a waterfall method as it is a sequence of stages that has to be followed.

The 5 activities of system analysis are gather detailed information, define requirements, prioritize requirements, develop user-interface dialogs, and evaluate requirements with users. This chapter discusses the analysis activity of defining requirements.

Basically there are three major components in every system, namely input, processing and output. In a system the different components are connected with each other and they are interdependent.

There are usually six stages in this cycle: requirement analysis, design, development and testing, implementation, documentation, and evaluation.

Examples of systems analysis might be making a change to some computer code to achieve a task, fixing a faulty air-conditioning system, or analyzing the routines in your life to stop a mistake from happening.

System analysis is the examination of the business problem that organizations plan to solve with an information system. The main purpose of the systems analysis stage is to gather information about the existing system in order to determine the requirements for an enhanced system or a new system.

System analysis is important because it provides an avenue for solutions in the system through the various tasks involved in doing the analysis. Through these various tasks, the overall quality of a system can be easily modified or improved and occurrences of errors can ultimately be reduced.