USA: +1-585-535-1023

UK: +44-208-133-5697

AUS: +61-280-07-5697

Basic Concepts of Simulation



For developing a model the system under study is closely analyzed and each system component  is identified along with its parameters. We summarize the ABC of simulation steps in below :


A    Analyze the system bottom-up

(elements - relations - components - system)

B   Build the model

C    Consider strategy and setup cases for studying the behaviour of the system

D    Do simulation

E     Evaluate and criticise the results

F     If acceptable produce before, else repeat all steps

G    Goto C after modifying.


Also we write down the basic differences of two types of simulation i.e., fixed time step

simulation (FTSS) and event to event model simulation (EES).

                         FTSS                               EES
1. Here the system clock is updated atfixed regular intervals of time.


2. The interval width is pre-determined.

3. In an interval same changes may or

may not take place in the system.

4. Machine efficiency or utilization is less.

5 . Less preferred

1. Here the system clock is updated onlywhen there is an occurrence of a potential

event in the system.

2. The interval width cannot be pre- Determined.

3. Between one occurrence to next occurrence

no change takes place in the system

4. Utilization of the system is very effective

5. Most preferred.