Systems Engineering Modeling and Design

Systems Engineering Modeling and Design

Kumar Saurabh (Satyam Computer Services Ltd., India)
DOI: 10.4018/978-1-60566-344-9.ch008
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System theories, analysis and design have been deployed within every corporate function and within a broad section of businesses and markets. Systems thinking involve changing paradigms about the way the world works, the way corporations function, and the human role in each. In systems thinking, analysis and design we look for interrelationships among the elements of a system. The chapter reflects the core insights of system modeling. This chapter addresses the core issues of system engineering, analysis, design, Simulation and modeling of real-world objects. It tells everything one needs to know to be a successful system thinker, modeler, technical manager and forecaster. The chapter focuses on: the real-world goals for, services provided by, and constraints on systems; the precise specification of system structure and behavior, and the implementation of specifications; the activities required in order to develop an assurance that the specifications and real-world goals have been met; the evolution of systems over time and across system families. It is also concerned with the processes, methods and tools for the development of systems in an economic and timely manner.
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2. System Theory And Thinking

One of the biggest breakthroughs in how we understand and guide change in organizations is systems theory and systems thinking. To understand how they are used in organizations, we first must understand a system. Many of us have an intuitive understanding of the term. However, we need to make the understanding explicit in order to use systems thinking and systems tools in organizations.

Simply put, a system is an organized collection of parts (or subsystems) that are highly integrated to accomplish an overall goal. The system has various inputs, which go through certain processes to produce certain outputs, which together, accomplish the overall desired goal for the system. So a system is usually made up of many smaller systems, or subsystems. For example, an organization is made up of many administrative and management functions, products, services, groups and individuals. If one part of the system is changed, the nature of the overall system is often changed, as well -- by definition then, the system is systemic, meaning relating to, or affecting, the entire system. (This is not to be confused with systematic, which can mean merely that something is methodological. Thus, methodological thinking -- systematic thinking -- does not necessarily mean systems thinking.)

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