a problem-solving method that involves looking at the wider system, breaking up the parts, and figuring out how it works to achieve a particular goal.
System Analysis Details
System analysis is the process of objectively analyzing a system to figure out more details about the system. It helps in the further development and troubleshooting of the system. The entire system broken down into several components, parts, and steps are analyzed to solve a problem. For example, a computer is a collection of small processors, memory units, power units, and cables. All these small components come together to create a computer. The system analysis process helps to identify every detail of the system.
The main aim of system analysis is to find out various faults in the system and provide the best possible solution. As a result, the quality of the system increases. The objectives of the system must be properly understood before analyzing the system. The client lays out the objectives and requirements for the system.
The system analysis phase creates a logical model of the entire system. Fact-finding techniques like interviews, surveys, document reviews, etc. help to gather system details. Business and object models build from the data gathered. The product of the system analysis phase is the system requirements document. This document outlines user requirements, costs, and benefits, and specifies alternative development strategies.
Example of System Analysis
All system development and design fields use system analysis to improve productivity and reduce system downtime due to errors. Computer System analysis is a field of Information Technology where system analysis helps solve computer technology problems. Specialized analysis works on specific computer systems such as business, accounting, financial and scientific systems.
Power system analysis is a branch of electrical engineering for designing entire power systems consisting of generators, transformers, transmission lines, etc. The objective of power system analysis is to ensure that all devices work together so that the required power is delivered to load centers at the prescribed voltage and frequency. This analysis eliminates network overloading thereby eliminating any faulty system performance.
Health system analysis is a methodology developed for the strengthening of health care systems and devices. It proposes causes of poor health system performance and suggests how reform policies and strengthening strategies can improve performance.
Significance of System Analysis
System analysis helps to understand a system's operation by breaking down the system into its working parts. Exhaustive problem-solving helps reduce the errors in the system.
The development of a system uses a continuous development model called System Development Life Cycle (SDLC). This process helps to create and test high-quality systems. The various steps in this life cycle include Planning, Analysis, Design, Implementation, and Maintenance.
System developers follow SLDC work phases to plan, build, test, and deliver information systems. The main aim of SDLC is to create a fault-less system based on customer requirements, within scheduled time frames and cost estimates. Some of the different types of SDLC models include waterfall, spiral, rapid prototyping, incremental model, etc.