Data Flow Diagram
Ref:
http://yourdon.com/strucanalysis/index.html
Bab 9 DFD
Contoh DFD
Elemen DFD
•
•
•
•
Process
Flow
Store
Terminator
Process
Flow
Store
bisa dengan memori, database, dsb
Store sebagai penyimpanan
Terminator
• Typically, a terminator is a
person or a group of
people, for example, an
outside organization or
government agency, or a
group or department that
is within the same
company or organization,
but outside the control of
the system being
modeled
Guideline in constructing DFD
• Choose meaningful names for processes,
flows, stores, and terminators.
• Number the processes.
• Redraw the DFD as many times as necessary
for esthetics.
• Avoid overly complex DFDs.
• Make sure the DFD is internally consistent
and consistent with any associated DFDs.
Context Diagram atau DFD level 0
• Represents an entire
system as a single
process and highlights
the interfaces between
the system and the
outside terminators
Complex DFD
sulit dipahami
DFD dengan hirarki
Balanced & out of balance