| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| blackboard access control system | 1.16 | 1 | 6441 | 3 | 32 |
| blackboard | 0.42 | 0.7 | 5858 | 79 | 10 |
| access | 1.97 | 0.8 | 5413 | 85 | 6 |
| control | 1.52 | 0.5 | 2816 | 55 | 7 |
| system | 0.04 | 0.2 | 87 | 25 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| blackboard access control system | 1.47 | 0.7 | 618 | 19 |
