A system is defined as
“an organized, purposeful structure that consists of interrelated and
interdependent elements. These elements continually influence one
another to maintain their activity and the existence of the system, in
order to achieve the goal of the system” [1]. There are 4 basic
components that make up a system: inputs, processing, outputs and
feedback mechanisms. These inner working help maintain a properly
working system from falling out of rhythm despite any changes that may
effect it. The basic structure of a system can be seen in all aspects of
life. Systems can be simple to complex.
A simple system that
most people do every day is brewing coffee/tea. The kettle is filled
with water and heat is applied to the kettle. These are inputs to the
system. Tea/coffee is added to a pot and the water after it is brought
to a boil is added to the pot. This is the processing of the inputs. The
brewed coffee/tea is added to a cup, sugar and milk are added and the
coffee/tea is drunk. These last steps represent the outputs of this
simple system. [2]
An example of a
complex system is the education in the United States. This follows the
order: early childhood education is followed by primary school (called
elementary school in the United States), middle school, secondary school
(called high school in the United States), and then postsecondary
(tertiary) education. [3] The education system is designed to
teach students the skills needed for modern life. The inputs are the
students, teachers, syllabus and classroom. The processing is the
educating of the students by the teachers. The outputs are the students
leaving school with knowledge. Teachers, lessons and examinations are
all part of the process that aim to turn an uneducated child into an
educated adult.
From small to large,
simple to complex, systems require all of their parts to function
successfully. All the raw components of a system are, processed and
reformed into the desired outputs. Systems are essential for the success
of life.
[2] http://www.technologystudent.com/designpro/system1.htm
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