31
Data flow links the movement of information from
one point to another between terminators, processes, and
data
stores.
Those
that
cross the system boundary are
known as IO or Input Output descriptions.
2.2.3.1.3
Processes
A process shows transformation or operation of
data
flows
within
the system.
It
modifies
the
inputs
in the
process of generating the outputs. Based on Satzinger,
JW,
Jackson,
Robert
B,
&
Burd
SD
2002); step-by
step
instructions are followed that transform inputs into outputs
(a computer or person or both doing the work).
2.2.3.1.4
Data Stores
Data
stores
represent
an
information
repository.
It
is a place that
symbolizes an open ended
narrow rectangle
for
storing
information
within
the
system.
Also,
it
shows
the information flow from its source to its destination
which
symbolized
by
a
line
with
arrowheads
presenting
the flow direction.
2.2.3.1.5
Real-time link
As
the
process
is
executing,
real-time
link
represents
communication back and
forth connecting an external agent
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