Class 1 Flashcards
(19 cards)
What brought about the need for simulation
What is Simulation
Varying the parameters of a model and observing the outcome. Technique for representing a dynamic real world system by a model and experimentation with the model in order to get information about the system
What is a Model
A model is a hypothetical or physical representation of real world phenomenon or element. It is created to show the main object or workings of an object, system or concept. It is a simplified often visual, or mathematical representation of a real world system or process used for design, analysis and prediction.
What is Modelling
Modelling is the process of generating an abstract, conceptual, graphical and or mathematical model of a system. It is the abstraction of real or imaginary world.
A model is ______ in development. Explain how
Iterative. One continuously revises a model until it meets set requirements.
What is a computer model
This is a simulation of real world or imaginary world which has parameters that a user can alter.
Why simulate?
Uncertainty relating to the outcome of a process or situation under consideration, When computation required is complex, Iterative and cumbersome, For Education purposes, When consequences of a proposed action cannot be immediately observed, Reduce cost of production, Minimizes risk
What are the types of models
Physical, Mathematical, Analogue, Simulation, Heuristic, Stochastic, Deterministic
What is a physical model
These are iconic in nature
What are mathematical models
These are models used for prediction/projection purposes.
What are analogue models
These are models that are iconic in nature but other entities are used to represent directly the entities of real world.
How is an analogue model different from a physical model
What is a simulation model
They are similar to an iconic model but instead of entities represented by physical quantities, they are represented by sequences of random numbers subject to the assumption of the model.
What is a Heuristic Model
These are models used under intrusive or futuristic condition with the hope that it will produce a workable solution that can be improved over time
What is a Deterministic model
These are models that contain certain known and fixed content throughout their formulation. Any model that includes a constant parameter like pi.
What is a Stochastic model
These are models that contain more uncertain variables and as such are subject to probability.
What are the Advantages of using models
Safer, Less expensive, Easier to control, Give room for error correction, Give room for innovation, Enhance decision making.
What are the first 4 steps of the modelling procedure
- Examine the real world situation, 2. Extract essential features from the real world, 3. Construct a model of the real world using just the essential features only, 4. Solve the experiment with a model.
What are the last three steps of the modelling procedure
- Draw conclusion about the model, 6. Re-examine the model and readjust parameters and continue to step 4 otherwise continue at 7, 7. Proceed with Implementation
