Yes, ProChain supports summary task links. In other words, the predecessors of the summary task will be scheduled before any of the summary’s detailed tasks, and the successors of the summary task won’t be scheduled until after all of the detail tasks. Note that the critical chain that ProChain identifies will not include summary tasks. If the critical chain does go through the summary task link, ProChain will identify only the relevant detail tasks.

There biggest downside to using summary task links is that they can hide the true relationships between the detail tasks. This can make it harder to analyze the network and can make it difficult to find opportunities to shorten the schedule by changing task links.