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| System Analysis and Design ： ウィキペディア英語版 |
Systems analysis
"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".〔(Systems Analysis and Design for the Global Enterprise ) by Lonnie D. Bentley p.160 7th edition〕 According to the Merriam-Webster dictionary, systems analysis is "the process of studying a procedure or business in order to identify its goals and purposes and create systems and procedures that will achieve them in an efficient way". Analysis and synthesis, as scientific methods, always go hand in hand; they complement one another. Every synthesis is built upon the results of a preceding analysis, and every analysis requires a subsequent synthesis in order to verify and correct its results.
This field is closely related to requirements analysis or operations research. It is also "an explicit formal inquiry carried out to help someone (referred to as the decision maker) identify a better course of action and make a better decision than she might otherwise have made."〔(SYSTEMS ANALYSIS )〕
==Overview==
The terms analysis and synthesis stem from Greek, meaning "to take apart" and "to put together," respectfully. These terms are used in many scientific disciplines, from mathematics and logic to economics and psychology, to denote similar investigative procedures. Analysis is defined as "the procedure by which we break down an intellectual or substantial whole into parts," while synthesis means "the procedure by which we combine separate elements or components in order to form a coherent whole." 〔Tom Ritchey, ( Analysis and . )〕 Systems analysis researchers apply methodology to the systems involved, forming an overall picture.
System analysis is used in every field where something is developed. Analysis can also be a series of components that perform organic functions together, such as system engineering. Systems engineering is an interdisciplinary field of engineering that focuses on how complex engineering projects should be designed and managed.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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