Stella is a visual programming language for system dynamics modeling that allows users to create graphical representations of systems using basic building blocks. The document demonstrates how Stella can be used to model predator-prey relationships by manipulating parameters like the number of owls and rats. While developing quality simulations requires resources and expertise, Stella promotes critical thinking skills and helps students appreciate environmental management. It is a useful tool for biologists to predict outcomes from environmental changes and benefits biology education when utilized properly.

1. BY,
MOHD SOFFIAN BIN ISMAIL
D20152071990
XAVIER NUING ANAK WAN
D20152971989
AHMAD SYAHIR BIN MAULANA
D20162076161
ASRI JEFRY BIN ISHAK
D20172076158
SIMULATION AND
MODELLING BY
USING STELLA
SOFTWARE
SBI3013: INFORMATION AND COMMUNICATION TECHNOLOGY IN BIOLOGY

2. INTRODUCTION
• STELLA (short for Systems Thinking, Experimental Learning Laboratory with
Animation; also marketed as iThink) is a visual programming language for system
dynamics modeling introduced by Barry Richmond in 1985.
• Allows users to run models created as graphical representations of a system using
four fundamental building blocks.
• Excells and frequently cited/commended as a modelling software by many academic
organization for it's freely adjustable perimeter to manipulate the graph.

3. ORIGINAL GRAPH OWL=10 RATS=13000

4. MANIPULATED GRAPH OWL=10 RATS=26000

5. MANIPULATED GRAPH OWL=17 RATS=11000

6. DISADVANTAGES
Resources and time are required to
develop a quality learning
experience with simulations.
Need someone who is
expertise to teach the
student or teacher.
Communication between
teacher and student are
not
Need a lot of money
to do the simulation

7. ADVANTAGES
Promote the use of
critical and evaluative
thinking.
Promote concept
attainment through
experiential practice.
Help students appreciate more
deeply the management of the
environment, politics, community
and culture.
Can reinforce other
skills indirectly

8. CONCLUSION
• Excellent tool for biologist to predict outcome of many changes in the
environment.
• Technology development such as Stella can benefit society abundantly after
utilization by professionals .
• Give biology teachers advantages in teaching as today's modern world is
heavily dependent on technology.
• Students that excels and experienced in utilizing software technology such as
STELLA have many advantages over students who are not.