| Ability to associate variables with sub-workflow nodes | *yes* | no | |
 | Ability to configure sub-workflows individually | yes | no | Can be good or bad |
 | Separate node status files, etc., for sub-workflows | yes | *no* | |
+| A single halt file or condor_hold suspends the entire workflow | *no* | yes | |
 
 *Possible combinatorial explosion of dependencies*