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Questions and Answers
What is the primary benefit of system modeling and computer simulation?
What is a system according to the broader definition?
What is an attribute of a student in a university system?
What is the term for studying a system that changes with time?
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What is an example of a static system?
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What is the main purpose of system modeling and simulation?
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What is an entity in the context of a system?
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What is an activity in the context of a system?
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What is the state of a system?
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What is an event in the context of a system?
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What is an exogenous system?
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What is the study of a system called?
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What makes it difficult to predict the result of operations on a system?
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What is a major drawback of the simulation process?
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Which of the following is an application area of Modelling & Simulation?
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What is a use of Modelling & Simulation in system design?
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What is the primary characteristic of deterministic studies?
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Which of the following systems is an example of a continuous system?
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In which field can Modelling & Simulation be used to study the internal structure of a complex system?
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What is the second step in performing simulation analysis?
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What is the purpose of step 5 in simulation analysis?
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What is the primary difference between a continuous and discrete system?
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What is the final step in performing simulation analysis?
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What is the purpose of Step 8 in the Modelling and Simulation process?
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What is an advantage of using Modelling and Simulation in systems analysis?
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What is the primary reason why designing a model is challenging?
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What is the benefit of using Modelling and Simulation in identifying constraints in a system?
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What is the purpose of Step 9 in the Modelling and Simulation process?
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What is a disadvantage of using Modelling and Simulation in systems analysis?
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Study Notes
Modelling and Simulation
- Modelling and simulation involve creating a model of a system and experimenting with it to understand its behavior
- It allows for easy understanding, testing, and upgrading of systems without affecting the real system
- Modelling and simulation can be used to identify constraints, diagnose problems, and explore new policies and procedures
Advantages of Modelling and Simulation
- Easy to understand: allows understanding of how the system operates without working on real-time systems
- Easy to test: allows making changes to the system and seeing their effect on the output without working on real-time systems
- Easy to upgrade: determines system requirements by applying different configurations
- Easy to identify constraints: performs analysis that causes delay in the work process
- Easy to diagnose problems: understands all interactions and analyzes their effect
Disadvantages of Modelling and Simulation
- Designing a model requires domain knowledge, training, and experience
- Simulation results can be difficult to translate and require experts to understand
- Simulation process is expensive and time-consuming
System Modelling
- System modeling and computer simulation are used to study systems with the help of mathematical models and computers
- It saves money and time by not performing actual experiments on the real system
What is a System?
- A system is an object that has some action to perform and is dependent on a number of objects called entities
- Example: a classroom, a college, or a university is a system
- Each entity has its own attributes or properties
Types of Systems
- Systems can be divided into two types: static systems and dynamic systems
- Static systems do not change with time, while dynamic systems change with time
State of a System
- The state is defined as a collection of variables necessary to describe the system at any time, relative to the objectives of the study
- An event is an instantaneous occurrence that may change the state of the system
Types of Environment
- Exogenous systems are affected by the environment
- Endogenous systems are not affected by the environment
- Examples: economic model of a country (exogenous), aircraft flight (exogenous), and a classroom without students (endogenous)
Application Areas of Modelling and Simulation
- Modelling and simulation can be applied to military applications, training and support, designing semiconductors, telecommunications, civil engineering designs, and e-business models
- It can also be used to study biological systems, optimize system design, test new designs and policies, and verify analytic solutions
Scientific Techniques
- Deterministic studies involve techniques where results are known exactly
- Probabilistic studies involve techniques where results are not known exactly
- Examples of deterministic systems: fluid flow in a pipe, motion of an aircraft or trajectory of a projectile
- Examples of probabilistic systems: factory production and marketing in lots
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Description
Learn about system modeling and computer simulation, a crucial tool in the industry and defense. Understand how it helps engineers and scientists study systems using mathematical models and computers, saving time and money.
