Introduction to Modelling and Simulation

What is about Today?  

Modeling & simulation is use of the physical, mathematical or logical representation of a system , entity or process and these models  reduces the development time and cost of the system and it optimizes the design.  Simulation is the imitation of the real-world process or system. To simulate something, it requires a model to be developed, and these model represents the key characteristics, behaviors and functions of the selected system or process.Modelling an act of building a model and Simulation is act of using a model.Simulation software is based on the process of modeling a real phenomenon with a set of mathematical formulas. 

Advantages:

• Allows to understand how the system operates in real-time system in virtual environment.
• Easy to make changes in to the system and their effect on the output.
• Can determine the system requirements by applying different configurations.
• Performing bottleneck analysis.
• Understand all the interactions and analyze the effect.
• External noise can be applied to system to get real-time environment.
• Model can be simulated with respect to time - Dynamic simulation.
• From simulation code generation is easy, many tools are available.

Disadvantages:

• To design a model requires domain knowledge and experience.
• Its a time consuming process to optimize the model.
• Expensive as it needs costly tools.
• Requires high processing system to perform simulation on software tool.