On STELLA

 STELLA is a programme under ISEE SYSTEMS that offers a practical way to dynamically visualize and communicate how complex systems and ideas really work. It is a fantastic simulation programme that allows users to test and repeat processes and the corresponding results, without having to go through tedious preparation efforts and saves plenty of time.

            Users can use STELLA to simulate a system over time, jump the gap between theory and the real world, enable students and teachers to creatively change systems, teach students to look for relationships between the parameters and to clearly communicate system inputs and outputs and demonstrate outcomes. Its key features include mapping and modeling, simulation and analysis, and communication.

Some helpful diagrams we can see in the software, ranging from simple to complex.

Body decaying process

Feedback loop of the Newtonian standard model

Rock cycle

My coming post will be on the assignment I did using STELLA. Trust me, it's just awesome!

today, presentation of assignments on smart schools

Modeling and Simulation

Today, in class, I learnt about Modeling and Simulation. These are the notes I manage to jot down.

Modeling and simulation

What is a model?  See (shannon)
a representation of an object, a system, or an idea in some form other than that of the entity  itself.

Types of models
~Physical

scale models, prototype plants

~Mathematical-analytical queuing models, linear programs,simulation (our focus)

What is simulation?

Simulation of a system is the operation of a model, which is a representation of that system.

The model is amendable t manipulation which would be impossible, too expensive or too impractical to perform on the system which it portrays.

The operation of the model can be studies and from this, properties concerning the behavior of the actual system can be inferred.

Applications:

Designing and analyzing manufacturing systems

Evaluating HW and SW requirements for a computer system

Evaluating a new military weapons systems or tactics

Determine ordering policies for an inventory system

Design communications systems and msg protocols for them.

Design and operate transportation facilities like freeways, airports, subways or ports

Evaluating design for service organizations such as hospitals post offices or fast food rest.

Analyze financial or economic systems

Steps in simulation and model building

1 define an achievable goal

2 put together a complex mix of skills on the team

3 involve the end-user

4 choose the appropriate simulation tools

5 model the appropriate lvl(s) of detail

6 start early to collect the necessary input data

Why teach with simulations?

1. deep learning

~Deep learning means student can learn scientific methods including
2. model building

3. Experiments and simulations

~Relationships among variables

4. Develop a feel for what variables are important and the significance of magnitude changes in parameter

5. Data issues, probability and sampling theory

6. Predict outcomes

Learn to reflect on and extend knowledge by:

Actively engaging in student-student or instructor-student conversations

movie maker

print screen from UPSI official portal

Graphic Manipulation SSI 3013