+------------+
| Mulai |
+------------+
↓
+---------------------------+
| Identifikasi kebutuhan |
| barang |
+---------------------------+
↓
+---------------------------+
| Menyusun rencana |
| purchasing |
+---------------------------+
↓
+---------------------------+
| Ajukan draft ke GM |
+---------------------------+
↓
+----------------+
| GM setuju? |
+----------------+
↓ ↓
[Ya] [Tidak]
↓ ↓
+----------------+ |
| Menetapkan | |
| rencana final | |
+----------------+ |
↓ |
+-------------------+
| Selesai |
+-------------------+