| data flow diagram symbols | 1.84 | 0.8 | 884 | 25 | 84 |
| data flow diagram symbols and meaning | 0.66 | 0.9 | 5772 | 37 | 12 |
| data flow diagram symbols pdf | 1.05 | 0.2 | 8201 | 29 | 57 |
| data flow diagram symbols and rules | 0.39 | 0.6 | 3583 | 35 | 29 |
| process symbol in data flow diagram | 0.06 | 0.8 | 9370 | 35 | 87 |
| data flow diagram symbols meaning | 0.98 | 1 | 4904 | 33 | 69 |
| arrow symbol in data flow diagram represents | 0.9 | 0.6 | 3575 | 44 | 99 |
| symbols used in data flow diagram | 1.39 | 1 | 5256 | 33 | 96 |
| four basic symbols in data flow diagram | 1.23 | 0.7 | 8937 | 39 | 62 |
| data flow diagram rules and symbols | 1.07 | 0.4 | 1109 | 35 | 20 |
| flow diagram symbols explained | 0.98 | 0.3 | 890 | 30 | 96 |
