1. nama arus data
SIMBOL-SIMBOL DALAM DFD (YOURDON/DE MARCO)
Gambar 2.1 Notasi Kesatuan Luar Model Yourdan/ De Marco
Gambar 2.2 Notasi Arus Data Model Yourdan/ De Marco
Gambar 2.3 Notasi Proses Model Yourdan/ De Marco
Gambar 2.4 Notasi Data Store Model Yourdan/ De Marco