| KCN | Knowledge Collaborative Network |
| OSC | Open source communitiy |
| OSP | Open source project |
| MW | Failure of multi-project knowledge collaboration nodes |
| MB | Failure of multi-project knowledge dissemination nodes |
| LW | Failure of single-project knowledge collaboration nodes |
| LB | Failure of single-project knowledge dissemination nodes |
| RA | Random failure of nodes |
| MEN | Edge failure of multi-project knowledge collaboration nodes |
| MBN | Edge failure of multi-project knowledge dissemination nodes |
| LWN | Edge failure of single-project knowledge collaboration nodes |
| LBN | Edge failure of single-project knowledge dissemination nodes |
| RN | Random failure of edges |
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